AppInfoBase.java revision 20f464eddec2ffa64a385a1e9f51b9b8766ecf50 
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
51    protected static final String TAG = AppInfoBase.class.getSimpleName();
52    protected static final boolean localLOGV = false;
53
54    protected boolean mAppControlRestricted = false;
55
56    protected ApplicationsState mState;
57    private ApplicationsState.Session mSession;
58    protected ApplicationsState.AppEntry mAppEntry;
59    protected PackageInfo mPackageInfo;
60    protected int mUserId;
61    protected String mPackageName;
62
63    protected IUsbManager mUsbManager;
64    protected DevicePolicyManager mDpm;
65    protected UserManager mUserManager;
66    protected PackageManager mPm;
67
68    // Dialog identifiers used in showDialog
69    protected static final int DLG_BASE = 0;
70
71    @Override
72    public void onCreate(Bundle savedInstanceState) {
73        super.onCreate(savedInstanceState);
74
75        mState = ApplicationsState.getInstance(getActivity().getApplication());
76        mSession = mState.newSession(this);
77        Context context = getActivity();
78        mDpm = (DevicePolicyManager) context.getSystemService(Context.DEVICE_POLICY_SERVICE);
79        mUserManager = (UserManager) context.getSystemService(Context.USER_SERVICE);
80        mPm = context.getPackageManager();
81        IBinder b = ServiceManager.getService(Context.USB_SERVICE);
82        mUsbManager = IUsbManager.Stub.asInterface(b);
83
84        // Need to make sure we have loaded applications at this point.
85        mSession.resume();
86
87        retrieveAppEntry();
88    }
89
90    @Override
91    public void onResume() {
92        super.onResume();
93        mAppControlRestricted = mUserManager.hasUserRestriction(UserManager.DISALLOW_APPS_CONTROL);
94        mSession.resume();
95
96        if (!refreshUi()) {
97            setIntentAndFinish(true, true);
98        }
99    }
100
101    @Override
102    public void onPause() {
103        super.onPause();
104        mSession.pause();
105    }
106
107    @Override
108    public void onDestroyView() {
109        super.onDestroyView();
110        mSession.release();
111    }
112
113    protected String retrieveAppEntry() {
114        final Bundle args = getArguments();
115        mPackageName = (args != null) ? args.getString(ARG_PACKAGE_NAME) : null;
116        if (mPackageName == null) {
117            Intent intent = (args == null) ?
118                    getActivity().getIntent() : (Intent) args.getParcelable("intent");
119            if (intent != null) {
120                mPackageName = intent.getData().getSchemeSpecificPart();
121            }
122        }
123        mUserId = UserHandle.myUserId();
124        mAppEntry = mState.getEntry(mPackageName, mUserId);
125        if (mAppEntry != null) {
126            // Get application info again to refresh changed properties of application
127            try {
128                mPackageInfo = mPm.getPackageInfo(mAppEntry.info.packageName,
129                        PackageManager.GET_DISABLED_COMPONENTS |
130                        PackageManager.GET_UNINSTALLED_PACKAGES |
131                        PackageManager.GET_SIGNATURES);
132            } catch (NameNotFoundException e) {
133                Log.e(TAG, "Exception when retrieving package:" + mAppEntry.info.packageName, e);
134            }
135        } else {
136            Log.w(TAG, "Missing AppEntry; maybe reinstalling?");
137            mPackageInfo = null;
138        }
139
140        return mPackageName;
141    }
142
143    protected void setIntentAndFinish(boolean finish, boolean appChanged) {
144        if (localLOGV) Log.i(TAG, "appChanged="+appChanged);
145        Intent intent = new Intent();
146        intent.putExtra(ManageApplications.APP_CHG, appChanged);
147        SettingsActivity sa = (SettingsActivity)getActivity();
148        sa.finishPreferencePanel(this, Activity.RESULT_OK, intent);
149    }
150
151    protected void showDialogInner(int id, int moveErrorCode) {
152        DialogFragment newFragment = new MyAlertDialogFragment(id, moveErrorCode);
153        newFragment.setTargetFragment(this, 0);
154        newFragment.show(getFragmentManager(), "dialog " + id);
155    }
156
157    protected abstract boolean refreshUi();
158    protected abstract AlertDialog createDialog(int id, int errorCode);
159
160    @Override
161    public void onRunningStateChanged(boolean running) {
162        // No op.
163    }
164
165    @Override
166    public void onRebuildComplete(ArrayList<AppEntry> apps) {
167        // No op.
168    }
169
170    @Override
171    public void onPackageIconChanged() {
172        // No op.
173    }
174
175    @Override
176    public void onPackageSizeChanged(String packageName) {
177        // No op.
178    }
179
180    @Override
181    public void onAllSizesComputed() {
182        // No op.
183    }
184
185    @Override
186    public void onLauncherInfoChanged() {
187        // No op.
188    }
189
190    @Override
191    public void onLoadEntriesCompleted() {
192        // No op.
193    }
194
195    @Override
196    public void onPackageListChanged() {
197        refreshUi();
198    }
199
200    public static void startAppInfoFragment(Class<? extends AppInfoBase> fragment, int titleRes,
201            String pkg, int uid, Fragment source, int request) {
202        Bundle args = new Bundle();
203        args.putString(AppInfoBase.ARG_PACKAGE_NAME, pkg);
204
205        Intent intent = Utils.onBuildStartFragmentIntent(source.getActivity(), fragment.getName(),
206                args, null, titleRes, null, false);
207        source.getActivity().startActivityForResultAsUser(intent, request,
208                new UserHandle(UserHandle.getUserId(uid)));
209    }
210
211    public class MyAlertDialogFragment extends DialogFragment {
212        public MyAlertDialogFragment(int id, int errorCode) {
213            Bundle args = new Bundle();
214            args.putInt("id", id);
215            args.putInt("moveError", errorCode);
216            setArguments(args);
217        }
218
219        @Override
220        public Dialog onCreateDialog(Bundle savedInstanceState) {
221            int id = getArguments().getInt("id");
222            int errorCode = getArguments().getInt("moveError");
223            Dialog dialog = createDialog(id, errorCode);
224            if (dialog == null) {
225                throw new IllegalArgumentException("unknown id " + id);
226            }
227            return dialog;
228        }
229    }
230}
231