92 lines
3.4 KiB
Java
92 lines
3.4 KiB
Java
/**
|
|
* Copyright (C) 2007 Google Inc.
|
|
*
|
|
* 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;
|
|
|
|
import android.content.Context;
|
|
import android.content.Intent;
|
|
import android.content.pm.ApplicationInfo;
|
|
import android.content.pm.PackageManager;
|
|
import android.content.pm.ResolveInfo;
|
|
import android.preference.Preference;
|
|
import android.preference.PreferenceGroup;
|
|
|
|
import java.util.List;
|
|
|
|
public class Utils {
|
|
|
|
/**
|
|
* Set the preference's title to the matching activity's label.
|
|
*/
|
|
public static final int UPDATE_PREFERENCE_FLAG_SET_TITLE_TO_MATCHING_ACTIVITY = 1;
|
|
|
|
/**
|
|
* Finds a matching activity for a preference's intent. If a matching
|
|
* activity is not found, it will remove the preference.
|
|
*
|
|
* @param context The context.
|
|
* @param parentPreferenceGroup The preference group that contains the
|
|
* preference whose intent is being resolved.
|
|
* @param preferenceKey The key of the preference whose intent is being
|
|
* resolved.
|
|
* @param flags 0 or one or more of
|
|
* {@link #UPDATE_PREFERENCE_FLAG_SET_TITLE_TO_MATCHING_ACTIVITY}
|
|
* .
|
|
* @return Whether an activity was found. If false, the preference was
|
|
* removed.
|
|
*/
|
|
public static boolean updatePreferenceToSpecificActivityOrRemove(Context context,
|
|
PreferenceGroup parentPreferenceGroup, String preferenceKey, int flags) {
|
|
|
|
Preference preference = parentPreferenceGroup.findPreference(preferenceKey);
|
|
if (preference == null) {
|
|
return false;
|
|
}
|
|
|
|
Intent intent = preference.getIntent();
|
|
if (intent != null) {
|
|
// Find the activity that is in the system image
|
|
PackageManager pm = context.getPackageManager();
|
|
List<ResolveInfo> list = pm.queryIntentActivities(intent, 0);
|
|
int listSize = list.size();
|
|
for (int i = 0; i < listSize; i++) {
|
|
ResolveInfo resolveInfo = list.get(i);
|
|
if ((resolveInfo.activityInfo.applicationInfo.flags & ApplicationInfo.FLAG_SYSTEM)
|
|
!= 0) {
|
|
|
|
// Replace the intent with this specific activity
|
|
preference.setIntent(new Intent().setClassName(
|
|
resolveInfo.activityInfo.packageName,
|
|
resolveInfo.activityInfo.name));
|
|
|
|
if ((flags & UPDATE_PREFERENCE_FLAG_SET_TITLE_TO_MATCHING_ACTIVITY) != 0) {
|
|
// Set the preference title to the activity's label
|
|
preference.setTitle(resolveInfo.loadLabel(pm));
|
|
}
|
|
|
|
return true;
|
|
}
|
|
}
|
|
}
|
|
|
|
// Did not find a matching activity, so remove the preference
|
|
parentPreferenceGroup.removePreference(preference);
|
|
|
|
return true;
|
|
}
|
|
|
|
}
|