CryptKeeper.java revision de3c9cb412688eb841993ad971d06039d8a952c3
18fd5bc9e6ff0d02012df670a6bf4bcdaf903c09dJason parks/* 28fd5bc9e6ff0d02012df670a6bf4bcdaf903c09dJason parks * Copyright (C) 2011 The Android Open Source Project 38fd5bc9e6ff0d02012df670a6bf4bcdaf903c09dJason parks * 48fd5bc9e6ff0d02012df670a6bf4bcdaf903c09dJason parks * Licensed under the Apache License, Version 2.0 (the "License"); 58fd5bc9e6ff0d02012df670a6bf4bcdaf903c09dJason parks * you may not use this file except in compliance with the License. 68fd5bc9e6ff0d02012df670a6bf4bcdaf903c09dJason parks * You may obtain a copy of the License at 78fd5bc9e6ff0d02012df670a6bf4bcdaf903c09dJason parks * 88fd5bc9e6ff0d02012df670a6bf4bcdaf903c09dJason parks * http://www.apache.org/licenses/LICENSE-2.0 98fd5bc9e6ff0d02012df670a6bf4bcdaf903c09dJason parks * 108fd5bc9e6ff0d02012df670a6bf4bcdaf903c09dJason parks * Unless required by applicable law or agreed to in writing, software 118fd5bc9e6ff0d02012df670a6bf4bcdaf903c09dJason parks * distributed under the License is distributed on an "AS IS" BASIS, 128fd5bc9e6ff0d02012df670a6bf4bcdaf903c09dJason parks * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 138fd5bc9e6ff0d02012df670a6bf4bcdaf903c09dJason parks * See the License for the specific language governing permissions and 148fd5bc9e6ff0d02012df670a6bf4bcdaf903c09dJason parks * limitations under the License. 158fd5bc9e6ff0d02012df670a6bf4bcdaf903c09dJason parks */ 168fd5bc9e6ff0d02012df670a6bf4bcdaf903c09dJason parks 178fd5bc9e6ff0d02012df670a6bf4bcdaf903c09dJason parkspackage com.android.settings; 188fd5bc9e6ff0d02012df670a6bf4bcdaf903c09dJason parks 198fd5bc9e6ff0d02012df670a6bf4bcdaf903c09dJason parksimport android.app.Activity; 208fd5bc9e6ff0d02012df670a6bf4bcdaf903c09dJason parksimport android.app.StatusBarManager; 218fd5bc9e6ff0d02012df670a6bf4bcdaf903c09dJason parksimport android.content.ComponentName; 228fd5bc9e6ff0d02012df670a6bf4bcdaf903c09dJason parksimport android.content.Context; 23ec5a45e79cb7161adfabf475342c1e1b25994276Jason parksimport android.content.Intent; 248fd5bc9e6ff0d02012df670a6bf4bcdaf903c09dJason parksimport android.content.pm.PackageManager; 25de3c9cb412688eb841993ad971d06039d8a952c3Vikram Aggarwalimport android.media.AudioManager; 2606c5ff4a46686d3f599e40df0768177d3d88913cJason parksimport android.os.AsyncTask; 278fd5bc9e6ff0d02012df670a6bf4bcdaf903c09dJason parksimport android.os.Bundle; 28ec5a45e79cb7161adfabf475342c1e1b25994276Jason parksimport android.os.Handler; 298fd5bc9e6ff0d02012df670a6bf4bcdaf903c09dJason parksimport android.os.IBinder; 30ec5a45e79cb7161adfabf475342c1e1b25994276Jason parksimport android.os.Message; 3135933812b16f0b4221280bbcc3c32f6540996bf2Jason parksimport android.os.PowerManager; 328373b451692a39abdfd12444241c016831e1a4a4David Brownimport android.os.RemoteException; 338fd5bc9e6ff0d02012df670a6bf4bcdaf903c09dJason parksimport android.os.ServiceManager; 348fd5bc9e6ff0d02012df670a6bf4bcdaf903c09dJason parksimport android.os.SystemProperties; 358fd5bc9e6ff0d02012df670a6bf4bcdaf903c09dJason parksimport android.os.storage.IMountService; 368373b451692a39abdfd12444241c016831e1a4a4David Brownimport android.telephony.TelephonyManager; 37ec5a45e79cb7161adfabf475342c1e1b25994276Jason parksimport android.text.TextUtils; 388fd5bc9e6ff0d02012df670a6bf4bcdaf903c09dJason parksimport android.util.Log; 398fd5bc9e6ff0d02012df670a6bf4bcdaf903c09dJason parksimport android.view.KeyEvent; 4013d62049f7c96c47356f23eaee7f0997612fdf9fAndy Stadlerimport android.view.View; 4113d62049f7c96c47356f23eaee7f0997612fdf9fAndy Stadlerimport android.view.View.OnClickListener; 428fd5bc9e6ff0d02012df670a6bf4bcdaf903c09dJason parksimport android.view.inputmethod.EditorInfo; 439fcb6a7fac02aef85085c2db616556257e1642f5Ben Komaloimport android.view.inputmethod.InputMethodInfo; 4475c085ee890744cdd4b90c72f8b50e6aeeb31e88Jason parksimport android.view.inputmethod.InputMethodManager; 459fcb6a7fac02aef85085c2db616556257e1642f5Ben Komaloimport android.view.inputmethod.InputMethodSubtype; 4613d62049f7c96c47356f23eaee7f0997612fdf9fAndy Stadlerimport android.widget.Button; 47ec5a45e79cb7161adfabf475342c1e1b25994276Jason parksimport android.widget.EditText; 48ec5a45e79cb7161adfabf475342c1e1b25994276Jason parksimport android.widget.ProgressBar; 498fd5bc9e6ff0d02012df670a6bf4bcdaf903c09dJason parksimport android.widget.TextView; 508fd5bc9e6ff0d02012df670a6bf4bcdaf903c09dJason parks 5191a2f0566afb91549cbda9289b516154a6467624Ben Komaloimport com.android.internal.telephony.ITelephony; 529fcb6a7fac02aef85085c2db616556257e1642f5Ben Komalo 539fcb6a7fac02aef85085c2db616556257e1642f5Ben Komaloimport java.util.List; 5491a2f0566afb91549cbda9289b516154a6467624Ben Komalo 5591a2f0566afb91549cbda9289b516154a6467624Ben Komalo/** 5691a2f0566afb91549cbda9289b516154a6467624Ben Komalo * Settings screens to show the UI flows for encrypting/decrypting the device. 5791a2f0566afb91549cbda9289b516154a6467624Ben Komalo * 5891a2f0566afb91549cbda9289b516154a6467624Ben Komalo * This may be started via adb for debugging the UI layout, without having to go through 5991a2f0566afb91549cbda9289b516154a6467624Ben Komalo * encryption flows everytime. It should be noted that starting the activity in this manner 6091a2f0566afb91549cbda9289b516154a6467624Ben Komalo * is only useful for verifying UI-correctness - the behavior will not be identical. 6191a2f0566afb91549cbda9289b516154a6467624Ben Komalo * <pre> 6291a2f0566afb91549cbda9289b516154a6467624Ben Komalo * $ adb shell pm enable com.android.settings/.CryptKeeper 6391a2f0566afb91549cbda9289b516154a6467624Ben Komalo * $ adb shell am start \ 6491a2f0566afb91549cbda9289b516154a6467624Ben Komalo * -e "com.android.settings.CryptKeeper.DEBUG_FORCE_VIEW" "progress" \ 6591a2f0566afb91549cbda9289b516154a6467624Ben Komalo * -n com.android.settings/.CryptKeeper 6691a2f0566afb91549cbda9289b516154a6467624Ben Komalo * </pre> 6791a2f0566afb91549cbda9289b516154a6467624Ben Komalo */ 688fd5bc9e6ff0d02012df670a6bf4bcdaf903c09dJason parkspublic class CryptKeeper extends Activity implements TextView.OnEditorActionListener { 69ec5a45e79cb7161adfabf475342c1e1b25994276Jason parks private static final String TAG = "CryptKeeper"; 7035933812b16f0b4221280bbcc3c32f6540996bf2Jason parks 718fd5bc9e6ff0d02012df670a6bf4bcdaf903c09dJason parks private static final String DECRYPT_STATE = "trigger_restart_framework"; 72de3c9cb412688eb841993ad971d06039d8a952c3Vikram Aggarwal /** Message sent to us to indicate encryption update progress. */ 73de3c9cb412688eb841993ad971d06039d8a952c3Vikram Aggarwal private static final int MESSAGE_UPDATE_PROGRESS = 1; 74de3c9cb412688eb841993ad971d06039d8a952c3Vikram Aggarwal /** Message sent to us to cool-down (waste user's time between password attempts) */ 75de3c9cb412688eb841993ad971d06039d8a952c3Vikram Aggarwal private static final int MESSAGE_COOLDOWN = 2; 76de3c9cb412688eb841993ad971d06039d8a952c3Vikram Aggarwal /** Message sent to us to indicate alerting the user that we are waiting for password entry */ 77de3c9cb412688eb841993ad971d06039d8a952c3Vikram Aggarwal private static final int MESSAGE_NOTIFY = 3; 78de3c9cb412688eb841993ad971d06039d8a952c3Vikram Aggarwal 79de3c9cb412688eb841993ad971d06039d8a952c3Vikram Aggarwal // Constants used to control policy. 80ec5a45e79cb7161adfabf475342c1e1b25994276Jason parks private static final int MAX_FAILED_ATTEMPTS = 30; 81ec5a45e79cb7161adfabf475342c1e1b25994276Jason parks private static final int COOL_DOWN_ATTEMPTS = 10; 82ec5a45e79cb7161adfabf475342c1e1b25994276Jason parks private static final int COOL_DOWN_INTERVAL = 30; // 30 seconds 83ec5a45e79cb7161adfabf475342c1e1b25994276Jason parks 848373b451692a39abdfd12444241c016831e1a4a4David Brown // Intent action for launching the Emergency Dialer activity. 858373b451692a39abdfd12444241c016831e1a4a4David Brown static final String ACTION_EMERGENCY_DIAL = "com.android.phone.EmergencyDialer.DIAL"; 868373b451692a39abdfd12444241c016831e1a4a4David Brown 8791a2f0566afb91549cbda9289b516154a6467624Ben Komalo // Debug Intent extras so that this Activity may be started via adb for debugging UI layouts 8891a2f0566afb91549cbda9289b516154a6467624Ben Komalo private static final String EXTRA_FORCE_VIEW = 8991a2f0566afb91549cbda9289b516154a6467624Ben Komalo "com.android.settings.CryptKeeper.DEBUG_FORCE_VIEW"; 9091a2f0566afb91549cbda9289b516154a6467624Ben Komalo private static final String FORCE_VIEW_PROGRESS = "progress"; 9191a2f0566afb91549cbda9289b516154a6467624Ben Komalo private static final String FORCE_VIEW_ERROR = "error"; 92de3c9cb412688eb841993ad971d06039d8a952c3Vikram Aggarwal private static final String FORCE_VIEW_PASSWORD = "password"; 9391a2f0566afb91549cbda9289b516154a6467624Ben Komalo 94bfa3a64310162c8f29eae208220988380ffeea6eVikram Aggarwal /** When encryption is detected, this flag indicates whether or not we've checked for errors. */ 950e66609c95047ba7e5c0408bdc88af4315fd35b1Ben Komalo private boolean mValidationComplete; 96d4758efef6d6564d7b4b0b747d0a9ae9b44a38c7Ben Komalo private boolean mValidationRequested; 970e66609c95047ba7e5c0408bdc88af4315fd35b1Ben Komalo /** A flag to indicate that the volume is in a bad state (e.g. partially encrypted). */ 980e66609c95047ba7e5c0408bdc88af4315fd35b1Ben Komalo private boolean mEncryptionGoneBad; 99de3c9cb412688eb841993ad971d06039d8a952c3Vikram Aggarwal /** A flag to indicate when the back event should be ignored */ 100de3c9cb412688eb841993ad971d06039d8a952c3Vikram Aggarwal private boolean mIgnoreBack = false; 1010e66609c95047ba7e5c0408bdc88af4315fd35b1Ben Komalo 1021499740c13af5fbd5766a87825c3e789b37bab24Andy Stadler private int mCooldown; 1031499740c13af5fbd5766a87825c3e789b37bab24Andy Stadler PowerManager.WakeLock mWakeLock; 10406c5ff4a46686d3f599e40df0768177d3d88913cJason parks private EditText mPasswordEntry; 1051499740c13af5fbd5766a87825c3e789b37bab24Andy Stadler 1061499740c13af5fbd5766a87825c3e789b37bab24Andy Stadler /** 1071499740c13af5fbd5766a87825c3e789b37bab24Andy Stadler * Used to propagate state through configuration changes (e.g. screen rotation) 1081499740c13af5fbd5766a87825c3e789b37bab24Andy Stadler */ 1091499740c13af5fbd5766a87825c3e789b37bab24Andy Stadler private static class NonConfigurationInstanceState { 1101499740c13af5fbd5766a87825c3e789b37bab24Andy Stadler final PowerManager.WakeLock wakelock; 1111499740c13af5fbd5766a87825c3e789b37bab24Andy Stadler 1121499740c13af5fbd5766a87825c3e789b37bab24Andy Stadler NonConfigurationInstanceState(PowerManager.WakeLock _wakelock) { 1131499740c13af5fbd5766a87825c3e789b37bab24Andy Stadler wakelock = _wakelock; 1141499740c13af5fbd5766a87825c3e789b37bab24Andy Stadler } 1151499740c13af5fbd5766a87825c3e789b37bab24Andy Stadler } 1161499740c13af5fbd5766a87825c3e789b37bab24Andy Stadler 117bfa3a64310162c8f29eae208220988380ffeea6eVikram Aggarwal /** 118bfa3a64310162c8f29eae208220988380ffeea6eVikram Aggarwal * Activity used to fade the screen to black after the password is entered. 119bfa3a64310162c8f29eae208220988380ffeea6eVikram Aggarwal */ 1209f55ae28789754dafeed5c68468d45135d46199eVikram Aggarwal public static class FadeToBlack extends Activity { 12113d62049f7c96c47356f23eaee7f0997612fdf9fAndy Stadler @Override 12213d62049f7c96c47356f23eaee7f0997612fdf9fAndy Stadler public void onCreate(Bundle savedInstanceState) { 12313d62049f7c96c47356f23eaee7f0997612fdf9fAndy Stadler super.onCreate(savedInstanceState); 12413d62049f7c96c47356f23eaee7f0997612fdf9fAndy Stadler setContentView(R.layout.crypt_keeper_blank); 12513d62049f7c96c47356f23eaee7f0997612fdf9fAndy Stadler } 126de3c9cb412688eb841993ad971d06039d8a952c3Vikram Aggarwal /** Ignore all back events. */ 127de3c9cb412688eb841993ad971d06039d8a952c3Vikram Aggarwal @Override 128de3c9cb412688eb841993ad971d06039d8a952c3Vikram Aggarwal public void onBackPressed() { 129de3c9cb412688eb841993ad971d06039d8a952c3Vikram Aggarwal return; 130de3c9cb412688eb841993ad971d06039d8a952c3Vikram Aggarwal } 131f1dbf55819e01f6cf1a99d38a292b15de1262a29Jason parks } 132ec5a45e79cb7161adfabf475342c1e1b25994276Jason parks 13306c5ff4a46686d3f599e40df0768177d3d88913cJason parks private class DecryptTask extends AsyncTask<String, Void, Integer> { 13406c5ff4a46686d3f599e40df0768177d3d88913cJason parks @Override 13506c5ff4a46686d3f599e40df0768177d3d88913cJason parks protected Integer doInBackground(String... params) { 136de3c9cb412688eb841993ad971d06039d8a952c3Vikram Aggarwal final IMountService service = getMountService(); 13706c5ff4a46686d3f599e40df0768177d3d88913cJason parks try { 13806c5ff4a46686d3f599e40df0768177d3d88913cJason parks return service.decryptStorage(params[0]); 13906c5ff4a46686d3f599e40df0768177d3d88913cJason parks } catch (Exception e) { 14006c5ff4a46686d3f599e40df0768177d3d88913cJason parks Log.e(TAG, "Error while decrypting...", e); 14106c5ff4a46686d3f599e40df0768177d3d88913cJason parks return -1; 14206c5ff4a46686d3f599e40df0768177d3d88913cJason parks } 14306c5ff4a46686d3f599e40df0768177d3d88913cJason parks } 14406c5ff4a46686d3f599e40df0768177d3d88913cJason parks 14506c5ff4a46686d3f599e40df0768177d3d88913cJason parks @Override 14606c5ff4a46686d3f599e40df0768177d3d88913cJason parks protected void onPostExecute(Integer failedAttempts) { 14706c5ff4a46686d3f599e40df0768177d3d88913cJason parks if (failedAttempts == 0) { 14806c5ff4a46686d3f599e40df0768177d3d88913cJason parks // The password was entered successfully. Start the Blank activity 14906c5ff4a46686d3f599e40df0768177d3d88913cJason parks // so this activity animates to black before the devices starts. Note 15006c5ff4a46686d3f599e40df0768177d3d88913cJason parks // It has 1 second to complete the animation or it will be frozen 15106c5ff4a46686d3f599e40df0768177d3d88913cJason parks // until the boot animation comes back up. 152bfa3a64310162c8f29eae208220988380ffeea6eVikram Aggarwal Intent intent = new Intent(CryptKeeper.this, FadeToBlack.class); 15306c5ff4a46686d3f599e40df0768177d3d88913cJason parks finish(); 15406c5ff4a46686d3f599e40df0768177d3d88913cJason parks startActivity(intent); 15506c5ff4a46686d3f599e40df0768177d3d88913cJason parks } else if (failedAttempts == MAX_FAILED_ATTEMPTS) { 15606c5ff4a46686d3f599e40df0768177d3d88913cJason parks // Factory reset the device. 15706c5ff4a46686d3f599e40df0768177d3d88913cJason parks sendBroadcast(new Intent("android.intent.action.MASTER_CLEAR")); 15806c5ff4a46686d3f599e40df0768177d3d88913cJason parks } else if ((failedAttempts % COOL_DOWN_ATTEMPTS) == 0) { 15906c5ff4a46686d3f599e40df0768177d3d88913cJason parks mCooldown = COOL_DOWN_INTERVAL; 16006c5ff4a46686d3f599e40df0768177d3d88913cJason parks cooldown(); 16106c5ff4a46686d3f599e40df0768177d3d88913cJason parks } else { 162bfa3a64310162c8f29eae208220988380ffeea6eVikram Aggarwal final TextView status = (TextView) findViewById(R.id.status); 163bfa3a64310162c8f29eae208220988380ffeea6eVikram Aggarwal status.setText(R.string.try_again); 164bfa3a64310162c8f29eae208220988380ffeea6eVikram Aggarwal status.setVisibility(View.VISIBLE); 16506c5ff4a46686d3f599e40df0768177d3d88913cJason parks 16606c5ff4a46686d3f599e40df0768177d3d88913cJason parks // Reenable the password entry 16706c5ff4a46686d3f599e40df0768177d3d88913cJason parks mPasswordEntry.setEnabled(true); 16806c5ff4a46686d3f599e40df0768177d3d88913cJason parks } 16906c5ff4a46686d3f599e40df0768177d3d88913cJason parks } 17006c5ff4a46686d3f599e40df0768177d3d88913cJason parks } 17175c085ee890744cdd4b90c72f8b50e6aeeb31e88Jason parks 1720e66609c95047ba7e5c0408bdc88af4315fd35b1Ben Komalo private class ValidationTask extends AsyncTask<Void, Void, Boolean> { 1730e66609c95047ba7e5c0408bdc88af4315fd35b1Ben Komalo @Override 1740e66609c95047ba7e5c0408bdc88af4315fd35b1Ben Komalo protected Boolean doInBackground(Void... params) { 175de3c9cb412688eb841993ad971d06039d8a952c3Vikram Aggarwal final IMountService service = getMountService(); 1760e66609c95047ba7e5c0408bdc88af4315fd35b1Ben Komalo try { 177d4758efef6d6564d7b4b0b747d0a9ae9b44a38c7Ben Komalo Log.d(TAG, "Validating encryption state."); 1780e66609c95047ba7e5c0408bdc88af4315fd35b1Ben Komalo int state = service.getEncryptionState(); 1790e66609c95047ba7e5c0408bdc88af4315fd35b1Ben Komalo if (state == IMountService.ENCRYPTION_STATE_NONE) { 1800e66609c95047ba7e5c0408bdc88af4315fd35b1Ben Komalo Log.w(TAG, "Unexpectedly in CryptKeeper even though there is no encryption."); 1810e66609c95047ba7e5c0408bdc88af4315fd35b1Ben Komalo return true; // Unexpected, but fine, I guess... 1820e66609c95047ba7e5c0408bdc88af4315fd35b1Ben Komalo } 1830e66609c95047ba7e5c0408bdc88af4315fd35b1Ben Komalo return state == IMountService.ENCRYPTION_STATE_OK; 1840e66609c95047ba7e5c0408bdc88af4315fd35b1Ben Komalo } catch (RemoteException e) { 1850e66609c95047ba7e5c0408bdc88af4315fd35b1Ben Komalo Log.w(TAG, "Unable to get encryption state properly"); 1860e66609c95047ba7e5c0408bdc88af4315fd35b1Ben Komalo return true; 1870e66609c95047ba7e5c0408bdc88af4315fd35b1Ben Komalo } 1880e66609c95047ba7e5c0408bdc88af4315fd35b1Ben Komalo } 1890e66609c95047ba7e5c0408bdc88af4315fd35b1Ben Komalo 1900e66609c95047ba7e5c0408bdc88af4315fd35b1Ben Komalo @Override 1910e66609c95047ba7e5c0408bdc88af4315fd35b1Ben Komalo protected void onPostExecute(Boolean result) { 1920e66609c95047ba7e5c0408bdc88af4315fd35b1Ben Komalo mValidationComplete = true; 1930e66609c95047ba7e5c0408bdc88af4315fd35b1Ben Komalo if (Boolean.FALSE.equals(result)) { 1940e66609c95047ba7e5c0408bdc88af4315fd35b1Ben Komalo Log.w(TAG, "Incomplete, or corrupted encryption detected. Prompting user to wipe."); 1950e66609c95047ba7e5c0408bdc88af4315fd35b1Ben Komalo mEncryptionGoneBad = true; 196d4758efef6d6564d7b4b0b747d0a9ae9b44a38c7Ben Komalo } else { 197d4758efef6d6564d7b4b0b747d0a9ae9b44a38c7Ben Komalo Log.d(TAG, "Encryption state validated. Proceeding to configure UI"); 1980e66609c95047ba7e5c0408bdc88af4315fd35b1Ben Komalo } 1990e66609c95047ba7e5c0408bdc88af4315fd35b1Ben Komalo setupUi(); 2000e66609c95047ba7e5c0408bdc88af4315fd35b1Ben Komalo } 2010e66609c95047ba7e5c0408bdc88af4315fd35b1Ben Komalo } 2020e66609c95047ba7e5c0408bdc88af4315fd35b1Ben Komalo 20391a2f0566afb91549cbda9289b516154a6467624Ben Komalo private final Handler mHandler = new Handler() { 204ec5a45e79cb7161adfabf475342c1e1b25994276Jason parks @Override 205ec5a45e79cb7161adfabf475342c1e1b25994276Jason parks public void handleMessage(Message msg) { 206ec5a45e79cb7161adfabf475342c1e1b25994276Jason parks switch (msg.what) { 207de3c9cb412688eb841993ad971d06039d8a952c3Vikram Aggarwal case MESSAGE_UPDATE_PROGRESS: 208f8217304073b5cd13823a0602568394be93bf310Jason parks updateProgress(); 209ec5a45e79cb7161adfabf475342c1e1b25994276Jason parks break; 21035933812b16f0b4221280bbcc3c32f6540996bf2Jason parks 211de3c9cb412688eb841993ad971d06039d8a952c3Vikram Aggarwal case MESSAGE_COOLDOWN: 212f8217304073b5cd13823a0602568394be93bf310Jason parks cooldown(); 213ec5a45e79cb7161adfabf475342c1e1b25994276Jason parks break; 214de3c9cb412688eb841993ad971d06039d8a952c3Vikram Aggarwal 215de3c9cb412688eb841993ad971d06039d8a952c3Vikram Aggarwal case MESSAGE_NOTIFY: 216de3c9cb412688eb841993ad971d06039d8a952c3Vikram Aggarwal notifyUser(); 217de3c9cb412688eb841993ad971d06039d8a952c3Vikram Aggarwal break; 218ec5a45e79cb7161adfabf475342c1e1b25994276Jason parks } 219ec5a45e79cb7161adfabf475342c1e1b25994276Jason parks } 220ec5a45e79cb7161adfabf475342c1e1b25994276Jason parks }; 22135933812b16f0b4221280bbcc3c32f6540996bf2Jason parks 222de3c9cb412688eb841993ad971d06039d8a952c3Vikram Aggarwal private AudioManager mAudioManager; 223de3c9cb412688eb841993ad971d06039d8a952c3Vikram Aggarwal 22491a2f0566afb91549cbda9289b516154a6467624Ben Komalo /** @return whether or not this Activity was started for debugging the UI only. */ 22591a2f0566afb91549cbda9289b516154a6467624Ben Komalo private boolean isDebugView() { 22691a2f0566afb91549cbda9289b516154a6467624Ben Komalo return getIntent().hasExtra(EXTRA_FORCE_VIEW); 22791a2f0566afb91549cbda9289b516154a6467624Ben Komalo } 22891a2f0566afb91549cbda9289b516154a6467624Ben Komalo 22991a2f0566afb91549cbda9289b516154a6467624Ben Komalo /** @return whether or not this Activity was started for debugging the specific UI view only. */ 23091a2f0566afb91549cbda9289b516154a6467624Ben Komalo private boolean isDebugView(String viewType /* non-nullable */) { 23191a2f0566afb91549cbda9289b516154a6467624Ben Komalo return viewType.equals(getIntent().getStringExtra(EXTRA_FORCE_VIEW)); 23291a2f0566afb91549cbda9289b516154a6467624Ben Komalo } 23391a2f0566afb91549cbda9289b516154a6467624Ben Komalo 234de3c9cb412688eb841993ad971d06039d8a952c3Vikram Aggarwal /** 235de3c9cb412688eb841993ad971d06039d8a952c3Vikram Aggarwal * Notify the user that we are awaiting input. Currently this sends an audio alert. 236de3c9cb412688eb841993ad971d06039d8a952c3Vikram Aggarwal */ 237de3c9cb412688eb841993ad971d06039d8a952c3Vikram Aggarwal private void notifyUser() { 238de3c9cb412688eb841993ad971d06039d8a952c3Vikram Aggarwal Log.d(TAG, "Notifying user that we are waiting for input..."); 239de3c9cb412688eb841993ad971d06039d8a952c3Vikram Aggarwal if (mAudioManager != null) { 240de3c9cb412688eb841993ad971d06039d8a952c3Vikram Aggarwal try { 241de3c9cb412688eb841993ad971d06039d8a952c3Vikram Aggarwal // Play the standard keypress sound at full volume. This should be available on 242de3c9cb412688eb841993ad971d06039d8a952c3Vikram Aggarwal // every device. We cannot play a ringtone here because media services aren't 243de3c9cb412688eb841993ad971d06039d8a952c3Vikram Aggarwal // available yet. A DTMF-style tone is too soft to be noticed, and might not exist 244de3c9cb412688eb841993ad971d06039d8a952c3Vikram Aggarwal // on tablet devices. The idea is to alert the user that something is needed: this 245de3c9cb412688eb841993ad971d06039d8a952c3Vikram Aggarwal // does not have to be pleasing. 246de3c9cb412688eb841993ad971d06039d8a952c3Vikram Aggarwal mAudioManager.playSoundEffect(AudioManager.FX_KEYPRESS_STANDARD, 100); 247de3c9cb412688eb841993ad971d06039d8a952c3Vikram Aggarwal } catch (Exception e) { 248de3c9cb412688eb841993ad971d06039d8a952c3Vikram Aggarwal Log.w(TAG, "notifyUser: Exception while playing sound: " + e); 249de3c9cb412688eb841993ad971d06039d8a952c3Vikram Aggarwal } 250de3c9cb412688eb841993ad971d06039d8a952c3Vikram Aggarwal } 251de3c9cb412688eb841993ad971d06039d8a952c3Vikram Aggarwal // Notify the user again in 30 seconds. 252de3c9cb412688eb841993ad971d06039d8a952c3Vikram Aggarwal mHandler.removeMessages(MESSAGE_NOTIFY); 253de3c9cb412688eb841993ad971d06039d8a952c3Vikram Aggarwal mHandler.sendEmptyMessageDelayed(MESSAGE_NOTIFY, 30 * 1000); 254de3c9cb412688eb841993ad971d06039d8a952c3Vikram Aggarwal } 255de3c9cb412688eb841993ad971d06039d8a952c3Vikram Aggarwal 256de3c9cb412688eb841993ad971d06039d8a952c3Vikram Aggarwal /** 257de3c9cb412688eb841993ad971d06039d8a952c3Vikram Aggarwal * Ignore back events after the user has entered the decrypt screen and while the device is 258de3c9cb412688eb841993ad971d06039d8a952c3Vikram Aggarwal * encrypting. 259de3c9cb412688eb841993ad971d06039d8a952c3Vikram Aggarwal */ 260de3c9cb412688eb841993ad971d06039d8a952c3Vikram Aggarwal @Override 261de3c9cb412688eb841993ad971d06039d8a952c3Vikram Aggarwal public void onBackPressed() { 262de3c9cb412688eb841993ad971d06039d8a952c3Vikram Aggarwal if (mIgnoreBack) 263de3c9cb412688eb841993ad971d06039d8a952c3Vikram Aggarwal return; 264de3c9cb412688eb841993ad971d06039d8a952c3Vikram Aggarwal super.onBackPressed(); 265de3c9cb412688eb841993ad971d06039d8a952c3Vikram Aggarwal } 266de3c9cb412688eb841993ad971d06039d8a952c3Vikram Aggarwal 2678fd5bc9e6ff0d02012df670a6bf4bcdaf903c09dJason parks @Override 2688fd5bc9e6ff0d02012df670a6bf4bcdaf903c09dJason parks public void onCreate(Bundle savedInstanceState) { 2698fd5bc9e6ff0d02012df670a6bf4bcdaf903c09dJason parks super.onCreate(savedInstanceState); 27035933812b16f0b4221280bbcc3c32f6540996bf2Jason parks 2719597406aa1b83867b03a47d1a5162969b924f2fcAndy Stadler // If we are not encrypted or encrypting, get out quickly. 272de3c9cb412688eb841993ad971d06039d8a952c3Vikram Aggarwal final String state = SystemProperties.get("vold.decrypt"); 27391a2f0566afb91549cbda9289b516154a6467624Ben Komalo if (!isDebugView() && ("".equals(state) || DECRYPT_STATE.equals(state))) { 27435933812b16f0b4221280bbcc3c32f6540996bf2Jason parks // Disable the crypt keeper. 2758fd5bc9e6ff0d02012df670a6bf4bcdaf903c09dJason parks PackageManager pm = getPackageManager(); 2768fd5bc9e6ff0d02012df670a6bf4bcdaf903c09dJason parks ComponentName name = new ComponentName(this, CryptKeeper.class); 277140f6c6cf705f020c0ee6a2843cf1691cc68e729Dianne Hackborn pm.setComponentEnabledSetting(name, PackageManager.COMPONENT_ENABLED_STATE_DISABLED, 278140f6c6cf705f020c0ee6a2843cf1691cc68e729Dianne Hackborn PackageManager.DONT_KILL_APP); 279140f6c6cf705f020c0ee6a2843cf1691cc68e729Dianne Hackborn // Typically CryptKeeper is launched as the home app. We didn't 280644fa4243b4c288c85845b3f86aab25135635729Dianne Hackborn // want to be running, so need to finish this activity. We can count 281644fa4243b4c288c85845b3f86aab25135635729Dianne Hackborn // on the activity manager re-launching the new home app upon finishing 282644fa4243b4c288c85845b3f86aab25135635729Dianne Hackborn // this one, since this will leave the activity stack empty. 283140f6c6cf705f020c0ee6a2843cf1691cc68e729Dianne Hackborn // NOTE: This is really grungy. I think it would be better for the 284140f6c6cf705f020c0ee6a2843cf1691cc68e729Dianne Hackborn // activity manager to explicitly launch the crypt keeper instead of 285140f6c6cf705f020c0ee6a2843cf1691cc68e729Dianne Hackborn // home in the situation where we need to decrypt the device 286140f6c6cf705f020c0ee6a2843cf1691cc68e729Dianne Hackborn finish(); 2878fd5bc9e6ff0d02012df670a6bf4bcdaf903c09dJason parks return; 2888fd5bc9e6ff0d02012df670a6bf4bcdaf903c09dJason parks } 28935933812b16f0b4221280bbcc3c32f6540996bf2Jason parks 290b96b35a62b1f092b6322643c3568f3e712543e53Vikram Aggarwal // Disable the status bar, but do NOT disable back because the user needs a way to go 291b96b35a62b1f092b6322643c3568f3e712543e53Vikram Aggarwal // from keyboard settings and back to the password screen. 29239f1e04079976d3d10fdd8e5dd36c833bab8a371Jason parks StatusBarManager sbm = (StatusBarManager) getSystemService(Context.STATUS_BAR_SERVICE); 29313d62049f7c96c47356f23eaee7f0997612fdf9fAndy Stadler sbm.disable(StatusBarManager.DISABLE_EXPAND 29413d62049f7c96c47356f23eaee7f0997612fdf9fAndy Stadler | StatusBarManager.DISABLE_NOTIFICATION_ICONS 29539f1e04079976d3d10fdd8e5dd36c833bab8a371Jason parks | StatusBarManager.DISABLE_NOTIFICATION_ALERTS 29613d62049f7c96c47356f23eaee7f0997612fdf9fAndy Stadler | StatusBarManager.DISABLE_SYSTEM_INFO 2974d2bfd149118c8b82827d76d1d110fd5c65294c8Daniel Sandler | StatusBarManager.DISABLE_HOME 298b96b35a62b1f092b6322643c3568f3e712543e53Vikram Aggarwal | StatusBarManager.DISABLE_RECENT); 2991499740c13af5fbd5766a87825c3e789b37bab24Andy Stadler 300de3c9cb412688eb841993ad971d06039d8a952c3Vikram Aggarwal mAudioManager = (AudioManager) getSystemService(Context.AUDIO_SERVICE); 3011499740c13af5fbd5766a87825c3e789b37bab24Andy Stadler // Check for (and recover) retained instance data 302de3c9cb412688eb841993ad971d06039d8a952c3Vikram Aggarwal final Object lastInstance = getLastNonConfigurationInstance(); 3031499740c13af5fbd5766a87825c3e789b37bab24Andy Stadler if (lastInstance instanceof NonConfigurationInstanceState) { 3041499740c13af5fbd5766a87825c3e789b37bab24Andy Stadler NonConfigurationInstanceState retained = (NonConfigurationInstanceState) lastInstance; 3051499740c13af5fbd5766a87825c3e789b37bab24Andy Stadler mWakeLock = retained.wakelock; 3060460675b7c0d5a9b02dae01578c64ff0453e4fb7Ben Komalo Log.d(TAG, "Restoring wakelock from NonConfigurationInstanceState"); 3071499740c13af5fbd5766a87825c3e789b37bab24Andy Stadler } 308ec5a45e79cb7161adfabf475342c1e1b25994276Jason parks } 30935933812b16f0b4221280bbcc3c32f6540996bf2Jason parks 3109597406aa1b83867b03a47d1a5162969b924f2fcAndy Stadler /** 3119597406aa1b83867b03a47d1a5162969b924f2fcAndy Stadler * Note, we defer the state check and screen setup to onStart() because this will be 3129597406aa1b83867b03a47d1a5162969b924f2fcAndy Stadler * re-run if the user clicks the power button (sleeping/waking the screen), and this is 3139597406aa1b83867b03a47d1a5162969b924f2fcAndy Stadler * especially important if we were to lose the wakelock for any reason. 3149597406aa1b83867b03a47d1a5162969b924f2fcAndy Stadler */ 3159597406aa1b83867b03a47d1a5162969b924f2fcAndy Stadler @Override 3169597406aa1b83867b03a47d1a5162969b924f2fcAndy Stadler public void onStart() { 3179597406aa1b83867b03a47d1a5162969b924f2fcAndy Stadler super.onStart(); 318d4758efef6d6564d7b4b0b747d0a9ae9b44a38c7Ben Komalo setupUi(); 3190e66609c95047ba7e5c0408bdc88af4315fd35b1Ben Komalo } 3200e66609c95047ba7e5c0408bdc88af4315fd35b1Ben Komalo 3210e66609c95047ba7e5c0408bdc88af4315fd35b1Ben Komalo /** 3220e66609c95047ba7e5c0408bdc88af4315fd35b1Ben Komalo * Initializes the UI based on the current state of encryption. 3230e66609c95047ba7e5c0408bdc88af4315fd35b1Ben Komalo * This is idempotent - calling repeatedly will simply re-initialize the UI. 3240e66609c95047ba7e5c0408bdc88af4315fd35b1Ben Komalo */ 3250e66609c95047ba7e5c0408bdc88af4315fd35b1Ben Komalo private void setupUi() { 3260e66609c95047ba7e5c0408bdc88af4315fd35b1Ben Komalo if (mEncryptionGoneBad || isDebugView(FORCE_VIEW_ERROR)) { 3270e66609c95047ba7e5c0408bdc88af4315fd35b1Ben Komalo setContentView(R.layout.crypt_keeper_progress); 3280e66609c95047ba7e5c0408bdc88af4315fd35b1Ben Komalo showFactoryReset(); 3290e66609c95047ba7e5c0408bdc88af4315fd35b1Ben Komalo return; 3300e66609c95047ba7e5c0408bdc88af4315fd35b1Ben Komalo } 3310e66609c95047ba7e5c0408bdc88af4315fd35b1Ben Komalo 332de3c9cb412688eb841993ad971d06039d8a952c3Vikram Aggarwal final String progress = SystemProperties.get("vold.encrypt_progress"); 3330e66609c95047ba7e5c0408bdc88af4315fd35b1Ben Komalo if (!"".equals(progress) || isDebugView(FORCE_VIEW_PROGRESS)) { 3349597406aa1b83867b03a47d1a5162969b924f2fcAndy Stadler setContentView(R.layout.crypt_keeper_progress); 3359597406aa1b83867b03a47d1a5162969b924f2fcAndy Stadler encryptionProgressInit(); 336de3c9cb412688eb841993ad971d06039d8a952c3Vikram Aggarwal } else if (mValidationComplete || isDebugView(FORCE_VIEW_PASSWORD)) { 3379597406aa1b83867b03a47d1a5162969b924f2fcAndy Stadler setContentView(R.layout.crypt_keeper_password_entry); 3389597406aa1b83867b03a47d1a5162969b924f2fcAndy Stadler passwordEntryInit(); 339d4758efef6d6564d7b4b0b747d0a9ae9b44a38c7Ben Komalo } else if (!mValidationRequested) { 340d4758efef6d6564d7b4b0b747d0a9ae9b44a38c7Ben Komalo // We're supposed to be encrypted, but no validation has been done. 341d4758efef6d6564d7b4b0b747d0a9ae9b44a38c7Ben Komalo new ValidationTask().execute((Void[]) null); 342d4758efef6d6564d7b4b0b747d0a9ae9b44a38c7Ben Komalo mValidationRequested = true; 3439597406aa1b83867b03a47d1a5162969b924f2fcAndy Stadler } 3449597406aa1b83867b03a47d1a5162969b924f2fcAndy Stadler } 3459597406aa1b83867b03a47d1a5162969b924f2fcAndy Stadler 346f8217304073b5cd13823a0602568394be93bf310Jason parks @Override 347f8217304073b5cd13823a0602568394be93bf310Jason parks public void onStop() { 348f8217304073b5cd13823a0602568394be93bf310Jason parks super.onStop(); 349de3c9cb412688eb841993ad971d06039d8a952c3Vikram Aggarwal mHandler.removeMessages(MESSAGE_COOLDOWN); 350de3c9cb412688eb841993ad971d06039d8a952c3Vikram Aggarwal mHandler.removeMessages(MESSAGE_UPDATE_PROGRESS); 351de3c9cb412688eb841993ad971d06039d8a952c3Vikram Aggarwal mHandler.removeMessages(MESSAGE_NOTIFY); 3521499740c13af5fbd5766a87825c3e789b37bab24Andy Stadler } 3531499740c13af5fbd5766a87825c3e789b37bab24Andy Stadler 3541499740c13af5fbd5766a87825c3e789b37bab24Andy Stadler /** 3551499740c13af5fbd5766a87825c3e789b37bab24Andy Stadler * Reconfiguring, so propagate the wakelock to the next instance. This runs between onStop() 3561499740c13af5fbd5766a87825c3e789b37bab24Andy Stadler * and onDestroy() and only if we are changing configuration (e.g. rotation). Also clears 3571499740c13af5fbd5766a87825c3e789b37bab24Andy Stadler * mWakeLock so the subsequent call to onDestroy does not release it. 3581499740c13af5fbd5766a87825c3e789b37bab24Andy Stadler */ 3591499740c13af5fbd5766a87825c3e789b37bab24Andy Stadler @Override 3601499740c13af5fbd5766a87825c3e789b37bab24Andy Stadler public Object onRetainNonConfigurationInstance() { 3611499740c13af5fbd5766a87825c3e789b37bab24Andy Stadler NonConfigurationInstanceState state = new NonConfigurationInstanceState(mWakeLock); 3620460675b7c0d5a9b02dae01578c64ff0453e4fb7Ben Komalo Log.d(TAG, "Handing wakelock off to NonConfigurationInstanceState"); 3631499740c13af5fbd5766a87825c3e789b37bab24Andy Stadler mWakeLock = null; 3641499740c13af5fbd5766a87825c3e789b37bab24Andy Stadler return state; 3651499740c13af5fbd5766a87825c3e789b37bab24Andy Stadler } 3661499740c13af5fbd5766a87825c3e789b37bab24Andy Stadler 3671499740c13af5fbd5766a87825c3e789b37bab24Andy Stadler @Override 3681499740c13af5fbd5766a87825c3e789b37bab24Andy Stadler public void onDestroy() { 3691499740c13af5fbd5766a87825c3e789b37bab24Andy Stadler super.onDestroy(); 370f8217304073b5cd13823a0602568394be93bf310Jason parks 371f8217304073b5cd13823a0602568394be93bf310Jason parks if (mWakeLock != null) { 3720460675b7c0d5a9b02dae01578c64ff0453e4fb7Ben Komalo Log.d(TAG, "Releasing and destroying wakelock"); 373f8217304073b5cd13823a0602568394be93bf310Jason parks mWakeLock.release(); 374f8217304073b5cd13823a0602568394be93bf310Jason parks mWakeLock = null; 375f8217304073b5cd13823a0602568394be93bf310Jason parks } 376f8217304073b5cd13823a0602568394be93bf310Jason parks } 377f8217304073b5cd13823a0602568394be93bf310Jason parks 378de3c9cb412688eb841993ad971d06039d8a952c3Vikram Aggarwal /** 379de3c9cb412688eb841993ad971d06039d8a952c3Vikram Aggarwal * Start encrypting the device. 380de3c9cb412688eb841993ad971d06039d8a952c3Vikram Aggarwal */ 381ec5a45e79cb7161adfabf475342c1e1b25994276Jason parks private void encryptionProgressInit() { 38235933812b16f0b4221280bbcc3c32f6540996bf2Jason parks // Accquire a partial wakelock to prevent the device from sleeping. Note 38335933812b16f0b4221280bbcc3c32f6540996bf2Jason parks // we never release this wakelock as we will be restarted after the device 38435933812b16f0b4221280bbcc3c32f6540996bf2Jason parks // is encrypted. 3850460675b7c0d5a9b02dae01578c64ff0453e4fb7Ben Komalo Log.d(TAG, "Encryption progress screen initializing."); 3869ee164f44ea1ad66fa16ed702eb885e36ade0d8bBen Komalo if (mWakeLock == null) { 3870460675b7c0d5a9b02dae01578c64ff0453e4fb7Ben Komalo Log.d(TAG, "Acquiring wakelock."); 3880460675b7c0d5a9b02dae01578c64ff0453e4fb7Ben Komalo PowerManager pm = (PowerManager) getSystemService(Context.POWER_SERVICE); 3890460675b7c0d5a9b02dae01578c64ff0453e4fb7Ben Komalo mWakeLock = pm.newWakeLock(PowerManager.FULL_WAKE_LOCK, TAG); 3900460675b7c0d5a9b02dae01578c64ff0453e4fb7Ben Komalo mWakeLock.acquire(); 3910460675b7c0d5a9b02dae01578c64ff0453e4fb7Ben Komalo } 392f8217304073b5cd13823a0602568394be93bf310Jason parks 393bfa3a64310162c8f29eae208220988380ffeea6eVikram Aggarwal ((ProgressBar) findViewById(R.id.progress_bar)).setIndeterminate(true); 394de3c9cb412688eb841993ad971d06039d8a952c3Vikram Aggarwal // Ignore all back presses from now, both hard and soft keys. 395de3c9cb412688eb841993ad971d06039d8a952c3Vikram Aggarwal mIgnoreBack = true; 396de3c9cb412688eb841993ad971d06039d8a952c3Vikram Aggarwal // Start the first run of progress manually. This method sets up messages to occur at 397de3c9cb412688eb841993ad971d06039d8a952c3Vikram Aggarwal // repeated intervals. 398f8217304073b5cd13823a0602568394be93bf310Jason parks updateProgress(); 399f8217304073b5cd13823a0602568394be93bf310Jason parks } 400f8217304073b5cd13823a0602568394be93bf310Jason parks 40113d62049f7c96c47356f23eaee7f0997612fdf9fAndy Stadler private void showFactoryReset() { 40213d62049f7c96c47356f23eaee7f0997612fdf9fAndy Stadler // Hide the encryption-bot to make room for the "factory reset" button 40313d62049f7c96c47356f23eaee7f0997612fdf9fAndy Stadler findViewById(R.id.encroid).setVisibility(View.GONE); 40413d62049f7c96c47356f23eaee7f0997612fdf9fAndy Stadler 40513d62049f7c96c47356f23eaee7f0997612fdf9fAndy Stadler // Show the reset button, failure text, and a divider 406bfa3a64310162c8f29eae208220988380ffeea6eVikram Aggarwal final Button button = (Button) findViewById(R.id.factory_reset); 40713d62049f7c96c47356f23eaee7f0997612fdf9fAndy Stadler button.setVisibility(View.VISIBLE); 40813d62049f7c96c47356f23eaee7f0997612fdf9fAndy Stadler button.setOnClickListener(new OnClickListener() { 409bfa3a64310162c8f29eae208220988380ffeea6eVikram Aggarwal @Override 41013d62049f7c96c47356f23eaee7f0997612fdf9fAndy Stadler public void onClick(View v) { 41113d62049f7c96c47356f23eaee7f0997612fdf9fAndy Stadler // Factory reset the device. 41213d62049f7c96c47356f23eaee7f0997612fdf9fAndy Stadler sendBroadcast(new Intent("android.intent.action.MASTER_CLEAR")); 41313d62049f7c96c47356f23eaee7f0997612fdf9fAndy Stadler } 41413d62049f7c96c47356f23eaee7f0997612fdf9fAndy Stadler }); 41513d62049f7c96c47356f23eaee7f0997612fdf9fAndy Stadler 416bfa3a64310162c8f29eae208220988380ffeea6eVikram Aggarwal // Alert the user of the failure. 417bfa3a64310162c8f29eae208220988380ffeea6eVikram Aggarwal ((TextView) findViewById(R.id.title)).setText(R.string.crypt_keeper_failed_title); 418bfa3a64310162c8f29eae208220988380ffeea6eVikram Aggarwal ((TextView) findViewById(R.id.status)).setText(R.string.crypt_keeper_failed_summary); 41913d62049f7c96c47356f23eaee7f0997612fdf9fAndy Stadler 420bfa3a64310162c8f29eae208220988380ffeea6eVikram Aggarwal final View view = findViewById(R.id.bottom_divider); 421bfa3a64310162c8f29eae208220988380ffeea6eVikram Aggarwal // TODO(viki): Why would the bottom divider be missing in certain layouts? Investigate. 422f0104df823a93ef4c3336118ddb02a0924e520daBen Komalo if (view != null) { 423f0104df823a93ef4c3336118ddb02a0924e520daBen Komalo view.setVisibility(View.VISIBLE); 424f0104df823a93ef4c3336118ddb02a0924e520daBen Komalo } 42513d62049f7c96c47356f23eaee7f0997612fdf9fAndy Stadler } 42613d62049f7c96c47356f23eaee7f0997612fdf9fAndy Stadler 427f8217304073b5cd13823a0602568394be93bf310Jason parks private void updateProgress() { 428bfa3a64310162c8f29eae208220988380ffeea6eVikram Aggarwal final String state = SystemProperties.get("vold.encrypt_progress"); 429f8217304073b5cd13823a0602568394be93bf310Jason parks 4300e66609c95047ba7e5c0408bdc88af4315fd35b1Ben Komalo if ("error_partially_encrypted".equals(state)) { 43113d62049f7c96c47356f23eaee7f0997612fdf9fAndy Stadler showFactoryReset(); 43213d62049f7c96c47356f23eaee7f0997612fdf9fAndy Stadler return; 43313d62049f7c96c47356f23eaee7f0997612fdf9fAndy Stadler } 43413d62049f7c96c47356f23eaee7f0997612fdf9fAndy Stadler 435f8217304073b5cd13823a0602568394be93bf310Jason parks int progress = 0; 436f8217304073b5cd13823a0602568394be93bf310Jason parks try { 43791a2f0566afb91549cbda9289b516154a6467624Ben Komalo // Force a 50% progress state when debugging the view. 43891a2f0566afb91549cbda9289b516154a6467624Ben Komalo progress = isDebugView() ? 50 : Integer.parseInt(state); 439f8217304073b5cd13823a0602568394be93bf310Jason parks } catch (Exception e) { 440f8217304073b5cd13823a0602568394be93bf310Jason parks Log.w(TAG, "Error parsing progress: " + e.toString()); 441f8217304073b5cd13823a0602568394be93bf310Jason parks } 44235933812b16f0b4221280bbcc3c32f6540996bf2Jason parks 443bfa3a64310162c8f29eae208220988380ffeea6eVikram Aggarwal final CharSequence status = getText(R.string.crypt_keeper_setup_description); 4440460675b7c0d5a9b02dae01578c64ff0453e4fb7Ben Komalo Log.v(TAG, "Encryption progress: " + progress); 445bfa3a64310162c8f29eae208220988380ffeea6eVikram Aggarwal final TextView tv = (TextView) findViewById(R.id.status); 446de3c9cb412688eb841993ad971d06039d8a952c3Vikram Aggarwal if (tv != null) { 447de3c9cb412688eb841993ad971d06039d8a952c3Vikram Aggarwal tv.setText(TextUtils.expandTemplate(status, Integer.toString(progress))); 448de3c9cb412688eb841993ad971d06039d8a952c3Vikram Aggarwal } 449f8217304073b5cd13823a0602568394be93bf310Jason parks // Check the progress every 5 seconds 450de3c9cb412688eb841993ad971d06039d8a952c3Vikram Aggarwal mHandler.removeMessages(MESSAGE_UPDATE_PROGRESS); 451de3c9cb412688eb841993ad971d06039d8a952c3Vikram Aggarwal mHandler.sendEmptyMessageDelayed(MESSAGE_UPDATE_PROGRESS, 5000); 452f8217304073b5cd13823a0602568394be93bf310Jason parks } 453f8217304073b5cd13823a0602568394be93bf310Jason parks 454de3c9cb412688eb841993ad971d06039d8a952c3Vikram Aggarwal /** Disable password input for a while to force the user to waste time between retries */ 455f8217304073b5cd13823a0602568394be93bf310Jason parks private void cooldown() { 456bfa3a64310162c8f29eae208220988380ffeea6eVikram Aggarwal final TextView status = (TextView) findViewById(R.id.status); 45713d62049f7c96c47356f23eaee7f0997612fdf9fAndy Stadler 458f8217304073b5cd13823a0602568394be93bf310Jason parks if (mCooldown <= 0) { 459de3c9cb412688eb841993ad971d06039d8a952c3Vikram Aggarwal // Re-enable the password entry and back presses. 46006c5ff4a46686d3f599e40df0768177d3d88913cJason parks mPasswordEntry.setEnabled(true); 461de3c9cb412688eb841993ad971d06039d8a952c3Vikram Aggarwal mIgnoreBack = false; 462bfa3a64310162c8f29eae208220988380ffeea6eVikram Aggarwal status.setVisibility(View.GONE); 463f8217304073b5cd13823a0602568394be93bf310Jason parks } else { 46413d62049f7c96c47356f23eaee7f0997612fdf9fAndy Stadler CharSequence template = getText(R.string.crypt_keeper_cooldown); 465bfa3a64310162c8f29eae208220988380ffeea6eVikram Aggarwal status.setText(TextUtils.expandTemplate(template, Integer.toString(mCooldown))); 46613d62049f7c96c47356f23eaee7f0997612fdf9fAndy Stadler 467bfa3a64310162c8f29eae208220988380ffeea6eVikram Aggarwal status.setVisibility(View.VISIBLE); 468f8217304073b5cd13823a0602568394be93bf310Jason parks 469f8217304073b5cd13823a0602568394be93bf310Jason parks mCooldown--; 470de3c9cb412688eb841993ad971d06039d8a952c3Vikram Aggarwal mHandler.removeMessages(MESSAGE_COOLDOWN); 471de3c9cb412688eb841993ad971d06039d8a952c3Vikram Aggarwal mHandler.sendEmptyMessageDelayed(MESSAGE_COOLDOWN, 1000); // Tick every second 472f8217304073b5cd13823a0602568394be93bf310Jason parks } 473ec5a45e79cb7161adfabf475342c1e1b25994276Jason parks } 47435933812b16f0b4221280bbcc3c32f6540996bf2Jason parks 475ec5a45e79cb7161adfabf475342c1e1b25994276Jason parks private void passwordEntryInit() { 47606c5ff4a46686d3f599e40df0768177d3d88913cJason parks mPasswordEntry = (EditText) findViewById(R.id.passwordEntry); 47706c5ff4a46686d3f599e40df0768177d3d88913cJason parks mPasswordEntry.setOnEditorActionListener(this); 4789fcb6a7fac02aef85085c2db616556257e1642f5Ben Komalo mPasswordEntry.requestFocus(); 4799fcb6a7fac02aef85085c2db616556257e1642f5Ben Komalo 480bfa3a64310162c8f29eae208220988380ffeea6eVikram Aggarwal final View imeSwitcher = findViewById(R.id.switch_ime_button); 4819fcb6a7fac02aef85085c2db616556257e1642f5Ben Komalo final InputMethodManager imm = (InputMethodManager) getSystemService( 4829fcb6a7fac02aef85085c2db616556257e1642f5Ben Komalo Context.INPUT_METHOD_SERVICE); 4839fcb6a7fac02aef85085c2db616556257e1642f5Ben Komalo if (imeSwitcher != null && hasMultipleEnabledIMEsOrSubtypes(imm, false)) { 4849fcb6a7fac02aef85085c2db616556257e1642f5Ben Komalo imeSwitcher.setVisibility(View.VISIBLE); 4859fcb6a7fac02aef85085c2db616556257e1642f5Ben Komalo imeSwitcher.setOnClickListener(new OnClickListener() { 486bfa3a64310162c8f29eae208220988380ffeea6eVikram Aggarwal @Override 4879fcb6a7fac02aef85085c2db616556257e1642f5Ben Komalo public void onClick(View v) { 4889fcb6a7fac02aef85085c2db616556257e1642f5Ben Komalo imm.showInputMethodPicker(); 4899fcb6a7fac02aef85085c2db616556257e1642f5Ben Komalo } 4909fcb6a7fac02aef85085c2db616556257e1642f5Ben Komalo }); 4919fcb6a7fac02aef85085c2db616556257e1642f5Ben Komalo } 4929fcb6a7fac02aef85085c2db616556257e1642f5Ben Komalo 493de3c9cb412688eb841993ad971d06039d8a952c3Vikram Aggarwal // We want to keep the screen on while waiting for input. In minimal boot mode, the device 494de3c9cb412688eb841993ad971d06039d8a952c3Vikram Aggarwal // is completely non-functional, and we want the user to notice the device and enter a 495de3c9cb412688eb841993ad971d06039d8a952c3Vikram Aggarwal // password. 496de3c9cb412688eb841993ad971d06039d8a952c3Vikram Aggarwal if (mWakeLock == null) { 497de3c9cb412688eb841993ad971d06039d8a952c3Vikram Aggarwal Log.d(TAG, "Acquiring wakelock."); 498de3c9cb412688eb841993ad971d06039d8a952c3Vikram Aggarwal final PowerManager pm = (PowerManager) getSystemService(Context.POWER_SERVICE); 499de3c9cb412688eb841993ad971d06039d8a952c3Vikram Aggarwal if (pm != null) { 500de3c9cb412688eb841993ad971d06039d8a952c3Vikram Aggarwal mWakeLock = pm.newWakeLock(PowerManager.FULL_WAKE_LOCK, TAG); 501de3c9cb412688eb841993ad971d06039d8a952c3Vikram Aggarwal mWakeLock.acquire(); 502de3c9cb412688eb841993ad971d06039d8a952c3Vikram Aggarwal } 503de3c9cb412688eb841993ad971d06039d8a952c3Vikram Aggarwal } 5049fcb6a7fac02aef85085c2db616556257e1642f5Ben Komalo // Asynchronously throw up the IME, since there are issues with requesting it to be shown 5059fcb6a7fac02aef85085c2db616556257e1642f5Ben Komalo // immediately. 5069fcb6a7fac02aef85085c2db616556257e1642f5Ben Komalo mHandler.postDelayed(new Runnable() { 5079fcb6a7fac02aef85085c2db616556257e1642f5Ben Komalo @Override public void run() { 5089fcb6a7fac02aef85085c2db616556257e1642f5Ben Komalo imm.showSoftInputUnchecked(0, null); 5099fcb6a7fac02aef85085c2db616556257e1642f5Ben Komalo } 5109fcb6a7fac02aef85085c2db616556257e1642f5Ben Komalo }, 0); 5119fcb6a7fac02aef85085c2db616556257e1642f5Ben Komalo 5129fcb6a7fac02aef85085c2db616556257e1642f5Ben Komalo updateEmergencyCallButtonState(); 513de3c9cb412688eb841993ad971d06039d8a952c3Vikram Aggarwal // Notify the user that we are waiting for him to enter the password to get the device 514de3c9cb412688eb841993ad971d06039d8a952c3Vikram Aggarwal // out of this completely dead state. 515de3c9cb412688eb841993ad971d06039d8a952c3Vikram Aggarwal notifyUser(); 5169fcb6a7fac02aef85085c2db616556257e1642f5Ben Komalo } 51735933812b16f0b4221280bbcc3c32f6540996bf2Jason parks 5189fcb6a7fac02aef85085c2db616556257e1642f5Ben Komalo /** 5199fcb6a7fac02aef85085c2db616556257e1642f5Ben Komalo * Method adapted from com.android.inputmethod.latin.Utils 5209fcb6a7fac02aef85085c2db616556257e1642f5Ben Komalo * 5219fcb6a7fac02aef85085c2db616556257e1642f5Ben Komalo * @param imm The input method manager 5229fcb6a7fac02aef85085c2db616556257e1642f5Ben Komalo * @param shouldIncludeAuxiliarySubtypes 5239fcb6a7fac02aef85085c2db616556257e1642f5Ben Komalo * @return true if we have multiple IMEs to choose from 5249fcb6a7fac02aef85085c2db616556257e1642f5Ben Komalo */ 5259fcb6a7fac02aef85085c2db616556257e1642f5Ben Komalo private boolean hasMultipleEnabledIMEsOrSubtypes(InputMethodManager imm, 5269fcb6a7fac02aef85085c2db616556257e1642f5Ben Komalo final boolean shouldIncludeAuxiliarySubtypes) { 5279fcb6a7fac02aef85085c2db616556257e1642f5Ben Komalo final List<InputMethodInfo> enabledImis = imm.getEnabledInputMethodList(); 5289fcb6a7fac02aef85085c2db616556257e1642f5Ben Komalo 5299fcb6a7fac02aef85085c2db616556257e1642f5Ben Komalo // Number of the filtered IMEs 5309fcb6a7fac02aef85085c2db616556257e1642f5Ben Komalo int filteredImisCount = 0; 5319fcb6a7fac02aef85085c2db616556257e1642f5Ben Komalo 5329fcb6a7fac02aef85085c2db616556257e1642f5Ben Komalo for (InputMethodInfo imi : enabledImis) { 5339fcb6a7fac02aef85085c2db616556257e1642f5Ben Komalo // We can return true immediately after we find two or more filtered IMEs. 5349fcb6a7fac02aef85085c2db616556257e1642f5Ben Komalo if (filteredImisCount > 1) return true; 5359fcb6a7fac02aef85085c2db616556257e1642f5Ben Komalo final List<InputMethodSubtype> subtypes = 5369fcb6a7fac02aef85085c2db616556257e1642f5Ben Komalo imm.getEnabledInputMethodSubtypeList(imi, true); 5379fcb6a7fac02aef85085c2db616556257e1642f5Ben Komalo // IMEs that have no subtypes should be counted. 5389fcb6a7fac02aef85085c2db616556257e1642f5Ben Komalo if (subtypes.isEmpty()) { 5399fcb6a7fac02aef85085c2db616556257e1642f5Ben Komalo ++filteredImisCount; 5409fcb6a7fac02aef85085c2db616556257e1642f5Ben Komalo continue; 5419fcb6a7fac02aef85085c2db616556257e1642f5Ben Komalo } 54235933812b16f0b4221280bbcc3c32f6540996bf2Jason parks 5439fcb6a7fac02aef85085c2db616556257e1642f5Ben Komalo int auxCount = 0; 5449fcb6a7fac02aef85085c2db616556257e1642f5Ben Komalo for (InputMethodSubtype subtype : subtypes) { 5459fcb6a7fac02aef85085c2db616556257e1642f5Ben Komalo if (subtype.isAuxiliary()) { 5469fcb6a7fac02aef85085c2db616556257e1642f5Ben Komalo ++auxCount; 5479fcb6a7fac02aef85085c2db616556257e1642f5Ben Komalo } 5489fcb6a7fac02aef85085c2db616556257e1642f5Ben Komalo } 5499fcb6a7fac02aef85085c2db616556257e1642f5Ben Komalo final int nonAuxCount = subtypes.size() - auxCount; 5509fcb6a7fac02aef85085c2db616556257e1642f5Ben Komalo 5519fcb6a7fac02aef85085c2db616556257e1642f5Ben Komalo // IMEs that have one or more non-auxiliary subtypes should be counted. 5529fcb6a7fac02aef85085c2db616556257e1642f5Ben Komalo // If shouldIncludeAuxiliarySubtypes is true, IMEs that have two or more auxiliary 5539fcb6a7fac02aef85085c2db616556257e1642f5Ben Komalo // subtypes should be counted as well. 5549fcb6a7fac02aef85085c2db616556257e1642f5Ben Komalo if (nonAuxCount > 0 || (shouldIncludeAuxiliarySubtypes && auxCount > 1)) { 5559fcb6a7fac02aef85085c2db616556257e1642f5Ben Komalo ++filteredImisCount; 5569fcb6a7fac02aef85085c2db616556257e1642f5Ben Komalo continue; 5579fcb6a7fac02aef85085c2db616556257e1642f5Ben Komalo } 55800046d6e176eb05c3e3b0d13d38a8da7491bba5eJason parks } 5598373b451692a39abdfd12444241c016831e1a4a4David Brown 5609fcb6a7fac02aef85085c2db616556257e1642f5Ben Komalo return filteredImisCount > 1 5619fcb6a7fac02aef85085c2db616556257e1642f5Ben Komalo // imm.getEnabledInputMethodSubtypeList(null, false) will return the current IME's enabled 5629fcb6a7fac02aef85085c2db616556257e1642f5Ben Komalo // input method subtype (The current IME should be LatinIME.) 5639fcb6a7fac02aef85085c2db616556257e1642f5Ben Komalo || imm.getEnabledInputMethodSubtypeList(null, false).size() > 1; 5648fd5bc9e6ff0d02012df670a6bf4bcdaf903c09dJason parks } 5658fd5bc9e6ff0d02012df670a6bf4bcdaf903c09dJason parks 5668fd5bc9e6ff0d02012df670a6bf4bcdaf903c09dJason parks private IMountService getMountService() { 567bfa3a64310162c8f29eae208220988380ffeea6eVikram Aggarwal final IBinder service = ServiceManager.getService("mount"); 5688fd5bc9e6ff0d02012df670a6bf4bcdaf903c09dJason parks if (service != null) { 5698fd5bc9e6ff0d02012df670a6bf4bcdaf903c09dJason parks return IMountService.Stub.asInterface(service); 5708fd5bc9e6ff0d02012df670a6bf4bcdaf903c09dJason parks } 5718fd5bc9e6ff0d02012df670a6bf4bcdaf903c09dJason parks return null; 5728fd5bc9e6ff0d02012df670a6bf4bcdaf903c09dJason parks } 5738fd5bc9e6ff0d02012df670a6bf4bcdaf903c09dJason parks 5748fd5bc9e6ff0d02012df670a6bf4bcdaf903c09dJason parks @Override 5758fd5bc9e6ff0d02012df670a6bf4bcdaf903c09dJason parks public boolean onEditorAction(TextView v, int actionId, KeyEvent event) { 57600046d6e176eb05c3e3b0d13d38a8da7491bba5eJason parks if (actionId == EditorInfo.IME_NULL || actionId == EditorInfo.IME_ACTION_DONE) { 5778fd5bc9e6ff0d02012df670a6bf4bcdaf903c09dJason parks // Get the password 578bfa3a64310162c8f29eae208220988380ffeea6eVikram Aggarwal final String password = v.getText().toString(); 5798fd5bc9e6ff0d02012df670a6bf4bcdaf903c09dJason parks 580ec5a45e79cb7161adfabf475342c1e1b25994276Jason parks if (TextUtils.isEmpty(password)) { 581ec5a45e79cb7161adfabf475342c1e1b25994276Jason parks return true; 582ec5a45e79cb7161adfabf475342c1e1b25994276Jason parks } 58335933812b16f0b4221280bbcc3c32f6540996bf2Jason parks 5848fd5bc9e6ff0d02012df670a6bf4bcdaf903c09dJason parks // Now that we have the password clear the password field. 5858fd5bc9e6ff0d02012df670a6bf4bcdaf903c09dJason parks v.setText(null); 5868fd5bc9e6ff0d02012df670a6bf4bcdaf903c09dJason parks 587de3c9cb412688eb841993ad971d06039d8a952c3Vikram Aggarwal // Disable the password entry and back keypress while checking the password. These 588de3c9cb412688eb841993ad971d06039d8a952c3Vikram Aggarwal // we either be re-enabled if the password was wrong or after the cooldown period. 58906c5ff4a46686d3f599e40df0768177d3d88913cJason parks mPasswordEntry.setEnabled(false); 590de3c9cb412688eb841993ad971d06039d8a952c3Vikram Aggarwal mIgnoreBack = true; 59106c5ff4a46686d3f599e40df0768177d3d88913cJason parks 5920460675b7c0d5a9b02dae01578c64ff0453e4fb7Ben Komalo Log.d(TAG, "Attempting to send command to decrypt"); 59306c5ff4a46686d3f599e40df0768177d3d88913cJason parks new DecryptTask().execute(password); 59435933812b16f0b4221280bbcc3c32f6540996bf2Jason parks 5958fd5bc9e6ff0d02012df670a6bf4bcdaf903c09dJason parks return true; 5968fd5bc9e6ff0d02012df670a6bf4bcdaf903c09dJason parks } 5978fd5bc9e6ff0d02012df670a6bf4bcdaf903c09dJason parks return false; 5988fd5bc9e6ff0d02012df670a6bf4bcdaf903c09dJason parks } 5998373b451692a39abdfd12444241c016831e1a4a4David Brown 600bfa3a64310162c8f29eae208220988380ffeea6eVikram Aggarwal /** 601bfa3a64310162c8f29eae208220988380ffeea6eVikram Aggarwal * Code to update the state of, and handle clicks from, the "Emergency call" button. 602bfa3a64310162c8f29eae208220988380ffeea6eVikram Aggarwal * 603bfa3a64310162c8f29eae208220988380ffeea6eVikram Aggarwal * This code is mostly duplicated from the corresponding code in 604bfa3a64310162c8f29eae208220988380ffeea6eVikram Aggarwal * LockPatternUtils and LockPatternKeyguardView under frameworks/base. 605bfa3a64310162c8f29eae208220988380ffeea6eVikram Aggarwal */ 6068373b451692a39abdfd12444241c016831e1a4a4David Brown private void updateEmergencyCallButtonState() { 607bfa3a64310162c8f29eae208220988380ffeea6eVikram Aggarwal final Button emergencyCall = (Button) findViewById(R.id.emergencyCallButton); 6088373b451692a39abdfd12444241c016831e1a4a4David Brown // The button isn't present at all in some configurations. 609bfa3a64310162c8f29eae208220988380ffeea6eVikram Aggarwal if (emergencyCall == null) 610bfa3a64310162c8f29eae208220988380ffeea6eVikram Aggarwal return; 6118373b451692a39abdfd12444241c016831e1a4a4David Brown 6128373b451692a39abdfd12444241c016831e1a4a4David Brown if (isEmergencyCallCapable()) { 613bfa3a64310162c8f29eae208220988380ffeea6eVikram Aggarwal emergencyCall.setVisibility(View.VISIBLE); 614bfa3a64310162c8f29eae208220988380ffeea6eVikram Aggarwal emergencyCall.setOnClickListener(new View.OnClickListener() { 615bfa3a64310162c8f29eae208220988380ffeea6eVikram Aggarwal @Override 616bfa3a64310162c8f29eae208220988380ffeea6eVikram Aggarwal 6178373b451692a39abdfd12444241c016831e1a4a4David Brown public void onClick(View v) { 6188373b451692a39abdfd12444241c016831e1a4a4David Brown takeEmergencyCallAction(); 6198373b451692a39abdfd12444241c016831e1a4a4David Brown } 6208373b451692a39abdfd12444241c016831e1a4a4David Brown }); 6218373b451692a39abdfd12444241c016831e1a4a4David Brown } else { 622bfa3a64310162c8f29eae208220988380ffeea6eVikram Aggarwal emergencyCall.setVisibility(View.GONE); 6238373b451692a39abdfd12444241c016831e1a4a4David Brown return; 6248373b451692a39abdfd12444241c016831e1a4a4David Brown } 6258373b451692a39abdfd12444241c016831e1a4a4David Brown 626bfa3a64310162c8f29eae208220988380ffeea6eVikram Aggarwal final int newState = TelephonyManager.getDefault().getCallState(); 6278373b451692a39abdfd12444241c016831e1a4a4David Brown int textId; 6288373b451692a39abdfd12444241c016831e1a4a4David Brown if (newState == TelephonyManager.CALL_STATE_OFFHOOK) { 629bfa3a64310162c8f29eae208220988380ffeea6eVikram Aggarwal // Show "return to call" text and show phone icon 6308373b451692a39abdfd12444241c016831e1a4a4David Brown textId = R.string.cryptkeeper_return_to_call; 631bfa3a64310162c8f29eae208220988380ffeea6eVikram Aggarwal final int phoneCallIcon = R.drawable.stat_sys_phone_call; 632bfa3a64310162c8f29eae208220988380ffeea6eVikram Aggarwal emergencyCall.setCompoundDrawablesWithIntrinsicBounds(phoneCallIcon, 0, 0, 0); 6338373b451692a39abdfd12444241c016831e1a4a4David Brown } else { 6348373b451692a39abdfd12444241c016831e1a4a4David Brown textId = R.string.cryptkeeper_emergency_call; 635bfa3a64310162c8f29eae208220988380ffeea6eVikram Aggarwal final int emergencyIcon = R.drawable.ic_emergency; 636bfa3a64310162c8f29eae208220988380ffeea6eVikram Aggarwal emergencyCall.setCompoundDrawablesWithIntrinsicBounds(emergencyIcon, 0, 0, 0); 6378373b451692a39abdfd12444241c016831e1a4a4David Brown } 638bfa3a64310162c8f29eae208220988380ffeea6eVikram Aggarwal emergencyCall.setText(textId); 6398373b451692a39abdfd12444241c016831e1a4a4David Brown } 6408373b451692a39abdfd12444241c016831e1a4a4David Brown 6418373b451692a39abdfd12444241c016831e1a4a4David Brown private boolean isEmergencyCallCapable() { 6428373b451692a39abdfd12444241c016831e1a4a4David Brown return getResources().getBoolean(com.android.internal.R.bool.config_voice_capable); 6438373b451692a39abdfd12444241c016831e1a4a4David Brown } 6448373b451692a39abdfd12444241c016831e1a4a4David Brown 6458373b451692a39abdfd12444241c016831e1a4a4David Brown private void takeEmergencyCallAction() { 6468373b451692a39abdfd12444241c016831e1a4a4David Brown if (TelephonyManager.getDefault().getCallState() == TelephonyManager.CALL_STATE_OFFHOOK) { 6478373b451692a39abdfd12444241c016831e1a4a4David Brown resumeCall(); 6488373b451692a39abdfd12444241c016831e1a4a4David Brown } else { 6498373b451692a39abdfd12444241c016831e1a4a4David Brown launchEmergencyDialer(); 6508373b451692a39abdfd12444241c016831e1a4a4David Brown } 6518373b451692a39abdfd12444241c016831e1a4a4David Brown } 6528373b451692a39abdfd12444241c016831e1a4a4David Brown 6538373b451692a39abdfd12444241c016831e1a4a4David Brown private void resumeCall() { 654bfa3a64310162c8f29eae208220988380ffeea6eVikram Aggarwal final ITelephony phone = ITelephony.Stub.asInterface(ServiceManager.checkService("phone")); 6558373b451692a39abdfd12444241c016831e1a4a4David Brown if (phone != null) { 6568373b451692a39abdfd12444241c016831e1a4a4David Brown try { 6578373b451692a39abdfd12444241c016831e1a4a4David Brown phone.showCallScreen(); 6588373b451692a39abdfd12444241c016831e1a4a4David Brown } catch (RemoteException e) { 6598373b451692a39abdfd12444241c016831e1a4a4David Brown Log.e(TAG, "Error calling ITelephony service: " + e); 6608373b451692a39abdfd12444241c016831e1a4a4David Brown } 6618373b451692a39abdfd12444241c016831e1a4a4David Brown } 6628373b451692a39abdfd12444241c016831e1a4a4David Brown } 6638373b451692a39abdfd12444241c016831e1a4a4David Brown 6648373b451692a39abdfd12444241c016831e1a4a4David Brown private void launchEmergencyDialer() { 665bfa3a64310162c8f29eae208220988380ffeea6eVikram Aggarwal final Intent intent = new Intent(ACTION_EMERGENCY_DIAL); 6668373b451692a39abdfd12444241c016831e1a4a4David Brown intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK 6678373b451692a39abdfd12444241c016831e1a4a4David Brown | Intent.FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS); 6688373b451692a39abdfd12444241c016831e1a4a4David Brown startActivity(intent); 6698373b451692a39abdfd12444241c016831e1a4a4David Brown } 6708373b451692a39abdfd12444241c016831e1a4a4David Brown} 671