src/com/android/settings/applications/AppInfoBase.java - platform/packages/apps/Settings - Git at Google

 /*
  * Copyright (C) 2015 The Android Open Source Project
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
  *
  *      http://www.apache.org/licenses/LICENSE-2.0
  *
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */

 package com.android.settings.applications;

 import android.app.Activity;
 import android.app.AlertDialog;
 import android.app.Dialog;
 import android.app.DialogFragment;
 import android.app.Fragment;
 import android.app.admin.DevicePolicyManager;
 import android.content.BroadcastReceiver;
 import android.content.Context;
 import android.content.Intent;
 import android.content.IntentFilter;
 import android.content.pm.PackageInfo;
 import android.content.pm.PackageManager;
 import android.content.pm.PackageManager.NameNotFoundException;
 import android.hardware.usb.IUsbManager;
 import android.os.Bundle;
 import android.os.IBinder;
 import android.os.ServiceManager;
 import android.os.UserHandle;
 import android.os.UserManager;
 import android.text.TextUtils;
 import android.util.Log;

 import com.android.internal.logging.nano.MetricsProto;
 import com.android.settings.SettingsActivity;
 import com.android.settings.SettingsPreferenceFragment;
 import com.android.settings.Utils;
 import com.android.settings.core.instrumentation.InstrumentedDialogFragment;
 import com.android.settings.enterprise.DevicePolicyManagerWrapper;
 import com.android.settings.enterprise.DevicePolicyManagerWrapperImpl;
 import com.android.settings.overlay.FeatureFactory;
 import com.android.settingslib.RestrictedLockUtils;
 import com.android.settingslib.applications.ApplicationsState;
 import com.android.settingslib.applications.ApplicationsState.AppEntry;

 import java.util.ArrayList;

 import static com.android.settingslib.RestrictedLockUtils.EnforcedAdmin;

 public abstract class AppInfoBase extends SettingsPreferenceFragment
         implements ApplicationsState.Callbacks {

     public static final String ARG_PACKAGE_NAME = "package";
     public static final String ARG_PACKAGE_UID = "uid";

     protected static final String TAG = AppInfoBase.class.getSimpleName();
     protected static final boolean localLOGV = false;

     protected EnforcedAdmin mAppsControlDisallowedAdmin;
     protected boolean mAppsControlDisallowedBySystem;

     protected ApplicationFeatureProvider mApplicationFeatureProvider;
     protected ApplicationsState mState;
     protected ApplicationsState.Session mSession;
     protected ApplicationsState.AppEntry mAppEntry;
     protected PackageInfo mPackageInfo;
     protected int mUserId;
     protected String mPackageName;

     protected IUsbManager mUsbManager;
     protected DevicePolicyManagerWrapper mDpm;
     protected UserManager mUserManager;
     protected PackageManager mPm;

     // Dialog identifiers used in showDialog
     protected static final int DLG_BASE = 0;

     protected boolean mFinishing;
     protected boolean mListeningToPackageRemove;

     @Override
     public void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         mFinishing = false;
         final Activity activity = getActivity();
         mApplicationFeatureProvider = FeatureFactory.getFactory(activity)
                 .getApplicationFeatureProvider(activity);
         mState = ApplicationsState.getInstance(activity.getApplication());
         mSession = mState.newSession(this);
         mDpm = new DevicePolicyManagerWrapperImpl(
                 (DevicePolicyManager) activity.getSystemService(Context.DEVICE_POLICY_SERVICE));
         mUserManager = (UserManager) activity.getSystemService(Context.USER_SERVICE);
         mPm = activity.getPackageManager();
         IBinder b = ServiceManager.getService(Context.USB_SERVICE);
         mUsbManager = IUsbManager.Stub.asInterface(b);

         retrieveAppEntry();
         startListeningToPackageRemove();
     }

     @Override
     public void onResume() {
         super.onResume();
         mSession.resume();
         mAppsControlDisallowedAdmin = RestrictedLockUtils.checkIfRestrictionEnforced(getActivity(),
                 UserManager.DISALLOW_APPS_CONTROL, mUserId);
         mAppsControlDisallowedBySystem = RestrictedLockUtils.hasBaseUserRestriction(getActivity(),
                 UserManager.DISALLOW_APPS_CONTROL, mUserId);

         if (!refreshUi()) {
             setIntentAndFinish(true, true);
         }
     }

     @Override
     public void onPause() {
         mSession.pause();
         super.onPause();
     }

     @Override
     public void onDestroy() {
         stopListeningToPackageRemove();
         mSession.release();
         super.onDestroy();
     }

     protected String retrieveAppEntry() {
         final Bundle args = getArguments();
         mPackageName = (args != null) ? args.getString(ARG_PACKAGE_NAME) : null;
         if (mPackageName == null) {
             Intent intent = (args == null) ?
                     getActivity().getIntent() : (Intent) args.getParcelable("intent");
             if (intent != null) {
                 mPackageName = intent.getData().getSchemeSpecificPart();
             }
         }
         mUserId = UserHandle.myUserId();
         mAppEntry = mState.getEntry(mPackageName, mUserId);
         if (mAppEntry != null) {
             // Get application info again to refresh changed properties of application
             try {
                 mPackageInfo = mPm.getPackageInfo(mAppEntry.info.packageName,
                         PackageManager.MATCH_DISABLED_COMPONENTS |
                         PackageManager.MATCH_ANY_USER |
                         PackageManager.GET_SIGNATURES |
                         PackageManager.GET_PERMISSIONS);
             } catch (NameNotFoundException e) {
                 Log.e(TAG, "Exception when retrieving package:" + mAppEntry.info.packageName, e);
             }
         } else {
             Log.w(TAG, "Missing AppEntry; maybe reinstalling?");
             mPackageInfo = null;
         }

         return mPackageName;
     }

     protected void setIntentAndFinish(boolean finish, boolean appChanged) {
         if (localLOGV) Log.i(TAG, "appChanged="+appChanged);
         Intent intent = new Intent();
         intent.putExtra(ManageApplications.APP_CHG, appChanged);
         SettingsActivity sa = (SettingsActivity)getActivity();
         sa.finishPreferencePanel(this, Activity.RESULT_OK, intent);
         mFinishing = true;
     }

     protected void showDialogInner(int id, int moveErrorCode) {
         DialogFragment newFragment = MyAlertDialogFragment.newInstance(id, moveErrorCode);
         newFragment.setTargetFragment(this, 0);
         newFragment.show(getFragmentManager(), "dialog " + id);
     }

     protected abstract boolean refreshUi();
     protected abstract AlertDialog createDialog(int id, int errorCode);

     @Override
     public void onRunningStateChanged(boolean running) {
         // No op.
     }

     @Override
     public void onRebuildComplete(ArrayList<AppEntry> apps) {
         // No op.
     }

     @Override
     public void onPackageIconChanged() {
         // No op.
     }

     @Override
     public void onPackageSizeChanged(String packageName) {
         // No op.
     }

     @Override
     public void onAllSizesComputed() {
         // No op.
     }

     @Override
     public void onLauncherInfoChanged() {
         // No op.
     }

     @Override
     public void onLoadEntriesCompleted() {
         // No op.
     }

     @Override
     public void onPackageListChanged() {
         refreshUi();
     }

     public static void startAppInfoFragment(Class<?> fragment, int titleRes,
             String pkg, int uid, Fragment source, int request, int sourceMetricsCategory) {
         startAppInfoFragment(fragment, titleRes, pkg, uid, source.getActivity(), request,
                 sourceMetricsCategory);
     }

     public static void startAppInfoFragment(Class<?> fragment, int titleRes,
             String pkg, int uid, Activity source, int request, int sourceMetricsCategory) {
         Bundle args = new Bundle();
         args.putString(AppInfoBase.ARG_PACKAGE_NAME, pkg);
         args.putInt(AppInfoBase.ARG_PACKAGE_UID, uid);

         Intent intent = Utils.onBuildStartFragmentIntent(source, fragment.getName(),
                 args, null, titleRes, null, false, sourceMetricsCategory);
         source.startActivityForResultAsUser(intent, request,
                 new UserHandle(UserHandle.getUserId(uid)));
     }

     public static class MyAlertDialogFragment extends InstrumentedDialogFragment {

         private static final String ARG_ID = "id";

         @Override
         public int getMetricsCategory() {
             return MetricsProto.MetricsEvent.DIALOG_APP_INFO_ACTION;
         }

         @Override
         public Dialog onCreateDialog(Bundle savedInstanceState) {
             int id = getArguments().getInt(ARG_ID);
             int errorCode = getArguments().getInt("moveError");
             Dialog dialog = ((AppInfoBase) getTargetFragment()).createDialog(id, errorCode);
             if (dialog == null) {
                 throw new IllegalArgumentException("unknown id " + id);
             }
             return dialog;
         }

         public static MyAlertDialogFragment newInstance(int id, int errorCode) {
             MyAlertDialogFragment dialogFragment = new MyAlertDialogFragment();
             Bundle args = new Bundle();
             args.putInt(ARG_ID, id);
             args.putInt("moveError", errorCode);
             dialogFragment.setArguments(args);
             return dialogFragment;
         }
     }

     protected void startListeningToPackageRemove() {
         if (mListeningToPackageRemove) {
             return;
         }
         mListeningToPackageRemove = true;
         final IntentFilter filter = new IntentFilter(Intent.ACTION_PACKAGE_REMOVED);
         filter.addDataScheme("package");
         getContext().registerReceiver(mPackageRemovedReceiver, filter);
     }

     protected void stopListeningToPackageRemove() {
         if (!mListeningToPackageRemove) {
             return;
         }
         mListeningToPackageRemove = false;
         getContext().unregisterReceiver(mPackageRemovedReceiver);
     }

     protected void onPackageRemoved() {
         getActivity().finishAndRemoveTask();
     }

     protected final BroadcastReceiver mPackageRemovedReceiver = new BroadcastReceiver() {
         @Override
         public void onReceive(Context context, Intent intent) {
             String packageName = intent.getData().getSchemeSpecificPart();
             if (!mFinishing && (mAppEntry == null || mAppEntry.info == null
                     || TextUtils.equals(mAppEntry.info.packageName, packageName))) {
                 onPackageRemoved();
             }
         }
     };

 }
	/*
	* Copyright (C) 2015 The Android Open Source Project
	*
	* Licensed under the Apache License, Version 2.0 (the "License");
	* you may not use this file except in compliance with the License.
	* You may obtain a copy of the License at
	*
	* http://www.apache.org/licenses/LICENSE-2.0
	*
	* Unless required by applicable law or agreed to in writing, software
	* distributed under the License is distributed on an "AS IS" BASIS,
	* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
	* See the License for the specific language governing permissions and
	* limitations under the License.
	*/

	package com.android.settings.applications;

	import android.app.Activity;
	import android.app.AlertDialog;
	import android.app.Dialog;
	import android.app.DialogFragment;
	import android.app.Fragment;
	import android.app.admin.DevicePolicyManager;
	import android.content.BroadcastReceiver;
	import android.content.Context;
	import android.content.Intent;
	import android.content.IntentFilter;
	import android.content.pm.PackageInfo;
	import android.content.pm.PackageManager;
	import android.content.pm.PackageManager.NameNotFoundException;
	import android.hardware.usb.IUsbManager;
	import android.os.Bundle;
	import android.os.IBinder;
	import android.os.ServiceManager;
	import android.os.UserHandle;
	import android.os.UserManager;
	import android.text.TextUtils;
	import android.util.Log;

	import com.android.internal.logging.nano.MetricsProto;
	import com.android.settings.SettingsActivity;
	import com.android.settings.SettingsPreferenceFragment;
	import com.android.settings.Utils;
	import com.android.settings.core.instrumentation.InstrumentedDialogFragment;
	import com.android.settings.enterprise.DevicePolicyManagerWrapper;
	import com.android.settings.enterprise.DevicePolicyManagerWrapperImpl;
	import com.android.settings.overlay.FeatureFactory;
	import com.android.settingslib.RestrictedLockUtils;
	import com.android.settingslib.applications.ApplicationsState;
	import com.android.settingslib.applications.ApplicationsState.AppEntry;

	import java.util.ArrayList;

	import static com.android.settingslib.RestrictedLockUtils.EnforcedAdmin;

	public abstract class AppInfoBase extends SettingsPreferenceFragment
	implements ApplicationsState.Callbacks {

	public static final String ARG_PACKAGE_NAME = "package";
	public static final String ARG_PACKAGE_UID = "uid";

	protected static final String TAG = AppInfoBase.class.getSimpleName();
	protected static final boolean localLOGV = false;

	protected EnforcedAdmin mAppsControlDisallowedAdmin;
	protected boolean mAppsControlDisallowedBySystem;

	protected ApplicationFeatureProvider mApplicationFeatureProvider;
	protected ApplicationsState mState;
	protected ApplicationsState.Session mSession;
	protected ApplicationsState.AppEntry mAppEntry;
	protected PackageInfo mPackageInfo;
	protected int mUserId;
	protected String mPackageName;

	protected IUsbManager mUsbManager;
	protected DevicePolicyManagerWrapper mDpm;
	protected UserManager mUserManager;
	protected PackageManager mPm;

	// Dialog identifiers used in showDialog
	protected static final int DLG_BASE = 0;

	protected boolean mFinishing;
	protected boolean mListeningToPackageRemove;

	@Override
	public void onCreate(Bundle savedInstanceState) {
	super.onCreate(savedInstanceState);
	mFinishing = false;
	final Activity activity = getActivity();
	mApplicationFeatureProvider = FeatureFactory.getFactory(activity)
	.getApplicationFeatureProvider(activity);
	mState = ApplicationsState.getInstance(activity.getApplication());
	mSession = mState.newSession(this);
	mDpm = new DevicePolicyManagerWrapperImpl(
	(DevicePolicyManager) activity.getSystemService(Context.DEVICE_POLICY_SERVICE));
	mUserManager = (UserManager) activity.getSystemService(Context.USER_SERVICE);
	mPm = activity.getPackageManager();
	IBinder b = ServiceManager.getService(Context.USB_SERVICE);
	mUsbManager = IUsbManager.Stub.asInterface(b);

	retrieveAppEntry();
	startListeningToPackageRemove();
	}

	@Override
	public void onResume() {
	super.onResume();
	mSession.resume();
	mAppsControlDisallowedAdmin = RestrictedLockUtils.checkIfRestrictionEnforced(getActivity(),
	UserManager.DISALLOW_APPS_CONTROL, mUserId);
	mAppsControlDisallowedBySystem = RestrictedLockUtils.hasBaseUserRestriction(getActivity(),
	UserManager.DISALLOW_APPS_CONTROL, mUserId);

	if (!refreshUi()) {
	setIntentAndFinish(true, true);
	}
	}

	@Override
	public void onPause() {
	mSession.pause();
	super.onPause();
	}

	@Override
	public void onDestroy() {
	stopListeningToPackageRemove();
	mSession.release();
	super.onDestroy();
	}

	protected String retrieveAppEntry() {
	final Bundle args = getArguments();
	mPackageName = (args != null) ? args.getString(ARG_PACKAGE_NAME) : null;
	if (mPackageName == null) {
	Intent intent = (args == null) ?
	getActivity().getIntent() : (Intent) args.getParcelable("intent");
	if (intent != null) {
	mPackageName = intent.getData().getSchemeSpecificPart();
	}
	}
	mUserId = UserHandle.myUserId();
	mAppEntry = mState.getEntry(mPackageName, mUserId);
	if (mAppEntry != null) {
	// Get application info again to refresh changed properties of application
	try {
	mPackageInfo = mPm.getPackageInfo(mAppEntry.info.packageName,
	PackageManager.MATCH_DISABLED_COMPONENTS \|
	PackageManager.MATCH_ANY_USER \|
	PackageManager.GET_SIGNATURES \|
	PackageManager.GET_PERMISSIONS);
	} catch (NameNotFoundException e) {
	Log.e(TAG, "Exception when retrieving package:" + mAppEntry.info.packageName, e);
	}
	} else {
	Log.w(TAG, "Missing AppEntry; maybe reinstalling?");
	mPackageInfo = null;
	}

	return mPackageName;
	}

	protected void setIntentAndFinish(boolean finish, boolean appChanged) {
	if (localLOGV) Log.i(TAG, "appChanged="+appChanged);
	Intent intent = new Intent();
	intent.putExtra(ManageApplications.APP_CHG, appChanged);
	SettingsActivity sa = (SettingsActivity)getActivity();
	sa.finishPreferencePanel(this, Activity.RESULT_OK, intent);
	mFinishing = true;
	}

	protected void showDialogInner(int id, int moveErrorCode) {
	DialogFragment newFragment = MyAlertDialogFragment.newInstance(id, moveErrorCode);
	newFragment.setTargetFragment(this, 0);
	newFragment.show(getFragmentManager(), "dialog " + id);
	}

	protected abstract boolean refreshUi();
	protected abstract AlertDialog createDialog(int id, int errorCode);

	@Override
	public void onRunningStateChanged(boolean running) {
	// No op.
	}

	@Override
	public void onRebuildComplete(ArrayList<AppEntry> apps) {
	// No op.
	}

	@Override
	public void onPackageIconChanged() {
	// No op.
	}

	@Override
	public void onPackageSizeChanged(String packageName) {
	// No op.
	}

	@Override
	public void onAllSizesComputed() {
	// No op.
	}

	@Override
	public void onLauncherInfoChanged() {
	// No op.
	}

	@Override
	public void onLoadEntriesCompleted() {
	// No op.
	}

	@Override
	public void onPackageListChanged() {
	refreshUi();
	}

	public static void startAppInfoFragment(Class<?> fragment, int titleRes,
	String pkg, int uid, Fragment source, int request, int sourceMetricsCategory) {
	startAppInfoFragment(fragment, titleRes, pkg, uid, source.getActivity(), request,
	sourceMetricsCategory);
	}

	public static void startAppInfoFragment(Class<?> fragment, int titleRes,
	String pkg, int uid, Activity source, int request, int sourceMetricsCategory) {
	Bundle args = new Bundle();
	args.putString(AppInfoBase.ARG_PACKAGE_NAME, pkg);
	args.putInt(AppInfoBase.ARG_PACKAGE_UID, uid);

	Intent intent = Utils.onBuildStartFragmentIntent(source, fragment.getName(),
	args, null, titleRes, null, false, sourceMetricsCategory);
	source.startActivityForResultAsUser(intent, request,
	new UserHandle(UserHandle.getUserId(uid)));
	}

	public static class MyAlertDialogFragment extends InstrumentedDialogFragment {

	private static final String ARG_ID = "id";

	@Override
	public int getMetricsCategory() {
	return MetricsProto.MetricsEvent.DIALOG_APP_INFO_ACTION;
	}

	@Override
	public Dialog onCreateDialog(Bundle savedInstanceState) {
	int id = getArguments().getInt(ARG_ID);
	int errorCode = getArguments().getInt("moveError");
	Dialog dialog = ((AppInfoBase) getTargetFragment()).createDialog(id, errorCode);
	if (dialog == null) {
	throw new IllegalArgumentException("unknown id " + id);
	}
	return dialog;
	}

	public static MyAlertDialogFragment newInstance(int id, int errorCode) {
	MyAlertDialogFragment dialogFragment = new MyAlertDialogFragment();
	Bundle args = new Bundle();
	args.putInt(ARG_ID, id);
	args.putInt("moveError", errorCode);
	dialogFragment.setArguments(args);
	return dialogFragment;
	}
	}

	protected void startListeningToPackageRemove() {
	if (mListeningToPackageRemove) {
	return;
	}
	mListeningToPackageRemove = true;
	final IntentFilter filter = new IntentFilter(Intent.ACTION_PACKAGE_REMOVED);
	filter.addDataScheme("package");
	getContext().registerReceiver(mPackageRemovedReceiver, filter);
	}

	protected void stopListeningToPackageRemove() {
	if (!mListeningToPackageRemove) {
	return;
	}
	mListeningToPackageRemove = false;
	getContext().unregisterReceiver(mPackageRemovedReceiver);
	}

	protected void onPackageRemoved() {
	getActivity().finishAndRemoveTask();
	}

	protected final BroadcastReceiver mPackageRemovedReceiver = new BroadcastReceiver() {
	@Override
	public void onReceive(Context context, Intent intent) {
	String packageName = intent.getData().getSchemeSpecificPart();
	if (!mFinishing && (mAppEntry == null \|\| mAppEntry.info == null
	\|\| TextUtils.equals(mAppEntry.info.packageName, packageName))) {
	onPackageRemoved();
	}
	}
	};

	}