AppInfoBase.java revision 65ecadc62550b10eb634c14dd671f47b66ea8dbf 
1/*
2 * Copyright (C) 2015 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17package com.android.settings.applications;
18
19import android.app.Activity;
20import android.app.AlertDialog;
21import android.app.Dialog;
22import android.app.DialogFragment;
23import android.app.Fragment;
24import android.app.admin.DevicePolicyManager;
25import android.content.Context;
26import android.content.Intent;
27import android.content.pm.PackageInfo;
28import android.content.pm.PackageManager;
29import android.content.pm.PackageManager.NameNotFoundException;
30import android.hardware.usb.IUsbManager;
31import android.os.Bundle;
32import android.os.IBinder;
33import android.os.ServiceManager;
34import android.os.UserHandle;
35import android.os.UserManager;
36import android.util.Log;
37
38import com.android.settings.InstrumentedPreferenceFragment;
39import com.android.settings.SettingsActivity;
40import com.android.settings.SettingsPreferenceFragment;
41import com.android.settings.Utils;
42import com.android.settings.applications.ApplicationsState.AppEntry;
43
44import java.util.ArrayList;
45
46public abstract class AppInfoBase extends SettingsPreferenceFragment
47        implements ApplicationsState.Callbacks {
48
49    public static final String ARG_PACKAGE_NAME = "package";
50    public static final String ARG_PACKAGE_UID = "uid";
51
52    protected static final String TAG = AppInfoBase.class.getSimpleName();
53    protected static final boolean localLOGV = false;
54
55    protected boolean mAppControlRestricted = false;
56
57    protected ApplicationsState mState;
58    private ApplicationsState.Session mSession;
59    protected ApplicationsState.AppEntry mAppEntry;
60    protected PackageInfo mPackageInfo;
61    protected int mUserId;
62    protected String mPackageName;
63
64    protected IUsbManager mUsbManager;
65    protected DevicePolicyManager mDpm;
66    protected UserManager mUserManager;
67    protected PackageManager mPm;
68
69    // Dialog identifiers used in showDialog
70    protected static final int DLG_BASE = 0;
71
72    protected boolean mFinishing;
73
74    @Override
75    public void onCreate(Bundle savedInstanceState) {
76        super.onCreate(savedInstanceState);
77        mFinishing = false;
78
79        mState = ApplicationsState.getInstance(getActivity().getApplication());
80        mSession = mState.newSession(this);
81        Context context = getActivity();
82        mDpm = (DevicePolicyManager) context.getSystemService(Context.DEVICE_POLICY_SERVICE);
83        mUserManager = (UserManager) context.getSystemService(Context.USER_SERVICE);
84        mPm = context.getPackageManager();
85        IBinder b = ServiceManager.getService(Context.USB_SERVICE);
86        mUsbManager = IUsbManager.Stub.asInterface(b);
87
88        // Need to make sure we have loaded applications at this point.
89        mSession.resume();
90
91        retrieveAppEntry();
92    }
93
94    @Override
95    public void onResume() {
96        super.onResume();
97        mAppControlRestricted = mUserManager.hasUserRestriction(UserManager.DISALLOW_APPS_CONTROL);
98        mSession.resume();
99
100        if (!refreshUi()) {
101            setIntentAndFinish(true, true);
102        }
103    }
104
105    @Override
106    public void onPause() {
107        super.onPause();
108        mSession.pause();
109    }
110
111    @Override
112    public void onDestroyView() {
113        super.onDestroyView();
114        mSession.release();
115    }
116
117    protected String retrieveAppEntry() {
118        final Bundle args = getArguments();
119        mPackageName = (args != null) ? args.getString(ARG_PACKAGE_NAME) : null;
120        if (mPackageName == null) {
121            Intent intent = (args == null) ?
122                    getActivity().getIntent() : (Intent) args.getParcelable("intent");
123            if (intent != null) {
124                mPackageName = intent.getData().getSchemeSpecificPart();
125            }
126        }
127        mUserId = UserHandle.myUserId();
128        mAppEntry = mState.getEntry(mPackageName, mUserId);
129        if (mAppEntry != null) {
130            // Get application info again to refresh changed properties of application
131            try {
132                mPackageInfo = mPm.getPackageInfo(mAppEntry.info.packageName,
133                        PackageManager.GET_DISABLED_COMPONENTS |
134                        PackageManager.GET_UNINSTALLED_PACKAGES |
135                        PackageManager.GET_SIGNATURES);
136            } catch (NameNotFoundException e) {
137                Log.e(TAG, "Exception when retrieving package:" + mAppEntry.info.packageName, e);
138            }
139        } else {
140            Log.w(TAG, "Missing AppEntry; maybe reinstalling?");
141            mPackageInfo = null;
142        }
143
144        return mPackageName;
145    }
146
147    protected void setIntentAndFinish(boolean finish, boolean appChanged) {
148        if (localLOGV) Log.i(TAG, "appChanged="+appChanged);
149        Intent intent = new Intent();
150        intent.putExtra(ManageApplications.APP_CHG, appChanged);
151        SettingsActivity sa = (SettingsActivity)getActivity();
152        sa.finishPreferencePanel(this, Activity.RESULT_OK, intent);
153        mFinishing = true;
154    }
155
156    protected void showDialogInner(int id, int moveErrorCode) {
157        DialogFragment newFragment = new MyAlertDialogFragment(id, moveErrorCode);
158        newFragment.setTargetFragment(this, 0);
159        newFragment.show(getFragmentManager(), "dialog " + id);
160    }
161
162    protected abstract boolean refreshUi();
163    protected abstract AlertDialog createDialog(int id, int errorCode);
164
165    @Override
166    public void onRunningStateChanged(boolean running) {
167        // No op.
168    }
169
170    @Override
171    public void onRebuildComplete(ArrayList<AppEntry> apps) {
172        // No op.
173    }
174
175    @Override
176    public void onPackageIconChanged() {
177        // No op.
178    }
179
180    @Override
181    public void onPackageSizeChanged(String packageName) {
182        // No op.
183    }
184
185    @Override
186    public void onAllSizesComputed() {
187        // No op.
188    }
189
190    @Override
191    public void onLauncherInfoChanged() {
192        // No op.
193    }
194
195    @Override
196    public void onLoadEntriesCompleted() {
197        // No op.
198    }
199
200    @Override
201    public void onPackageListChanged() {
202        refreshUi();
203    }
204
205    public static void startAppInfoFragment(Class<?> fragment, int titleRes,
206            String pkg, int uid, Fragment source, int request) {
207        Bundle args = new Bundle();
208        args.putString(AppInfoBase.ARG_PACKAGE_NAME, pkg);
209        args.putInt(AppInfoBase.ARG_PACKAGE_UID, uid);
210
211        Intent intent = Utils.onBuildStartFragmentIntent(source.getActivity(), fragment.getName(),
212                args, null, titleRes, null, false);
213        source.getActivity().startActivityForResultAsUser(intent, request,
214                new UserHandle(UserHandle.getUserId(uid)));
215    }
216
217    public class MyAlertDialogFragment extends DialogFragment {
218        public MyAlertDialogFragment(int id, int errorCode) {
219            Bundle args = new Bundle();
220            args.putInt("id", id);
221            args.putInt("moveError", errorCode);
222            setArguments(args);
223        }
224
225        @Override
226        public Dialog onCreateDialog(Bundle savedInstanceState) {
227            int id = getArguments().getInt("id");
228            int errorCode = getArguments().getInt("moveError");
229            Dialog dialog = createDialog(id, errorCode);
230            if (dialog == null) {
231                throw new IllegalArgumentException("unknown id " + id);
232            }
233            return dialog;
234        }
235    }
236}
237