02cf71a591
Also fix: 2997438 and a similar bug in Tether Settings Show + menu item for User Dictionary
282 lines
12 KiB
Java
282 lines
12 KiB
Java
/**
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* Copyright (C) 2007 Google Inc.
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*
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* Licensed under the Apache License, Version 2.0 (the "License"); you may not
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* use this file except in compliance with the License. You may obtain a copy
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* of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*/
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package com.android.settings;
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import android.content.Context;
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import android.content.Intent;
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import android.content.pm.ApplicationInfo;
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import android.content.pm.PackageManager;
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import android.content.pm.ResolveInfo;
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import android.content.pm.PackageManager.NameNotFoundException;
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import android.content.res.Resources;
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import android.content.res.Resources.NotFoundException;
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import android.graphics.drawable.Drawable;
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import android.os.Bundle;
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import android.os.SystemProperties;
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import android.preference.Preference;
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import android.preference.PreferenceGroup;
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import android.preference.PreferenceActivity.Header;
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import android.telephony.TelephonyManager;
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import android.text.TextUtils;
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import java.util.List;
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public class Utils {
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/**
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* Set the preference's title to the matching activity's label.
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*/
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public static final int UPDATE_PREFERENCE_FLAG_SET_TITLE_TO_MATCHING_ACTIVITY = 1;
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/**
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* Name of the meta-data item that should be set in the AndroidManifest.xml
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* to specify the icon that should be displayed for the preference.
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*/
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private static final String META_DATA_PREFERENCE_ICON = "com.android.settings.icon";
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/**
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* Name of the meta-data item that should be set in the AndroidManifest.xml
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* to specify the title that should be displayed for the preference.
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*/
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private static final String META_DATA_PREFERENCE_TITLE = "com.android.settings.title";
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/**
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* Name of the meta-data item that should be set in the AndroidManifest.xml
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* to specify the summary text that should be displayed for the preference.
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*/
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private static final String META_DATA_PREFERENCE_SUMMARY = "com.android.settings.summary";
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/**
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* Finds a matching activity for a preference's intent. If a matching
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* activity is not found, it will remove the preference.
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*
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* @param context The context.
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* @param parentPreferenceGroup The preference group that contains the
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* preference whose intent is being resolved.
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* @param preferenceKey The key of the preference whose intent is being
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* resolved.
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* @param flags 0 or one or more of
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* {@link #UPDATE_PREFERENCE_FLAG_SET_TITLE_TO_MATCHING_ACTIVITY}
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* .
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* @return Whether an activity was found. If false, the preference was
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* removed.
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*/
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public static boolean updatePreferenceToSpecificActivityOrRemove(Context context,
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PreferenceGroup parentPreferenceGroup, String preferenceKey, int flags) {
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Preference preference = parentPreferenceGroup.findPreference(preferenceKey);
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if (preference == null) {
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return false;
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}
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Intent intent = preference.getIntent();
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if (intent != null) {
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// Find the activity that is in the system image
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PackageManager pm = context.getPackageManager();
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List<ResolveInfo> list = pm.queryIntentActivities(intent, 0);
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int listSize = list.size();
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for (int i = 0; i < listSize; i++) {
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ResolveInfo resolveInfo = list.get(i);
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if ((resolveInfo.activityInfo.applicationInfo.flags & ApplicationInfo.FLAG_SYSTEM)
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!= 0) {
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// Replace the intent with this specific activity
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preference.setIntent(new Intent().setClassName(
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resolveInfo.activityInfo.packageName,
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resolveInfo.activityInfo.name));
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if ((flags & UPDATE_PREFERENCE_FLAG_SET_TITLE_TO_MATCHING_ACTIVITY) != 0) {
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// Set the preference title to the activity's label
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preference.setTitle(resolveInfo.loadLabel(pm));
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}
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return true;
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}
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}
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}
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// Did not find a matching activity, so remove the preference
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parentPreferenceGroup.removePreference(preference);
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return true;
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}
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/**
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* Finds a matching activity for a preference's intent. If a matching
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* activity is not found, it will remove the preference. The icon, title and
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* summary of the preference will also be updated with the values retrieved
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* from the activity's meta-data elements. If no meta-data elements are
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* specified then the preference title will be set to match the label of the
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* activity, an icon and summary text will not be displayed.
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*
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* @param context The context.
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* @param parentPreferenceGroup The preference group that contains the
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* preference whose intent is being resolved.
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* @param preferenceKey The key of the preference whose intent is being
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* resolved.
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*
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* @return Whether an activity was found. If false, the preference was
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* removed.
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*
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* @see {@link #META_DATA_PREFERENCE_ICON}
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* {@link #META_DATA_PREFERENCE_TITLE}
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* {@link #META_DATA_PREFERENCE_SUMMARY}
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*/
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public static boolean updatePreferenceToSpecificActivityFromMetaDataOrRemove(Context context,
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PreferenceGroup parentPreferenceGroup, String preferenceKey) {
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IconPreferenceScreen preference = (IconPreferenceScreen)parentPreferenceGroup
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.findPreference(preferenceKey);
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if (preference == null) {
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return false;
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}
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Intent intent = preference.getIntent();
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if (intent != null) {
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// Find the activity that is in the system image
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PackageManager pm = context.getPackageManager();
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List<ResolveInfo> list = pm.queryIntentActivities(intent, PackageManager.GET_META_DATA);
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int listSize = list.size();
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for (int i = 0; i < listSize; i++) {
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ResolveInfo resolveInfo = list.get(i);
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if ((resolveInfo.activityInfo.applicationInfo.flags
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& ApplicationInfo.FLAG_SYSTEM) != 0) {
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Drawable icon = null;
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String title = null;
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String summary = null;
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// Get the activity's meta-data
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try {
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Resources res = pm
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.getResourcesForApplication(resolveInfo.activityInfo.packageName);
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Bundle metaData = resolveInfo.activityInfo.metaData;
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if (res != null && metaData != null) {
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icon = res.getDrawable(metaData.getInt(META_DATA_PREFERENCE_ICON));
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title = res.getString(metaData.getInt(META_DATA_PREFERENCE_TITLE));
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summary = res.getString(metaData.getInt(META_DATA_PREFERENCE_SUMMARY));
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}
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} catch (NameNotFoundException e) {
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// Ignore
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} catch (NotFoundException e) {
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// Ignore
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}
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// Set the preference title to the activity's label if no
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// meta-data is found
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if (TextUtils.isEmpty(title)) {
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title = resolveInfo.loadLabel(pm).toString();
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}
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// Set icon, title and summary for the preference
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preference.setIcon(icon);
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preference.setTitle(title);
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preference.setSummary(summary);
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// Replace the intent with this specific activity
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preference.setIntent(new Intent().setClassName(
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resolveInfo.activityInfo.packageName,
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resolveInfo.activityInfo.name));
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return true;
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}
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}
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}
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// Did not find a matching activity, so remove the preference
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parentPreferenceGroup.removePreference(preference);
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return false;
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}
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public static boolean updateHeaderToSpecificActivityFromMetaDataOrRemove(Context context,
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List<Header> target, Header header) {
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Intent intent = header.intent;
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if (intent != null) {
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// Find the activity that is in the system image
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PackageManager pm = context.getPackageManager();
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List<ResolveInfo> list = pm.queryIntentActivities(intent, PackageManager.GET_META_DATA);
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int listSize = list.size();
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for (int i = 0; i < listSize; i++) {
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ResolveInfo resolveInfo = list.get(i);
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if ((resolveInfo.activityInfo.applicationInfo.flags & ApplicationInfo.FLAG_SYSTEM)
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!= 0) {
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Drawable icon = null;
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String title = null;
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String summary = null;
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// Get the activity's meta-data
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try {
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Resources res = pm.getResourcesForApplication(
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resolveInfo.activityInfo.packageName);
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Bundle metaData = resolveInfo.activityInfo.metaData;
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if (res != null && metaData != null) {
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icon = res.getDrawable(metaData.getInt(META_DATA_PREFERENCE_ICON));
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title = res.getString(metaData.getInt(META_DATA_PREFERENCE_TITLE));
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summary = res.getString(metaData.getInt(META_DATA_PREFERENCE_SUMMARY));
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}
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} catch (NameNotFoundException e) {
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// Ignore
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} catch (NotFoundException e) {
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// Ignore
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}
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// Set the preference title to the activity's label if no
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// meta-data is found
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if (TextUtils.isEmpty(title)) {
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title = resolveInfo.loadLabel(pm).toString();
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}
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// Set icon, title and summary for the preference
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// TODO:
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//header.icon = icon;
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header.title = title;
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header.summary = summary;
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// Replace the intent with this specific activity
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header.intent = new Intent().setClassName(resolveInfo.activityInfo.packageName,
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resolveInfo.activityInfo.name);
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return true;
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}
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}
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}
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// Did not find a matching activity, so remove the preference
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if (target.remove(header)) System.err.println("Removed " + header.id);
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return false;
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}
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/**
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* Returns true if Monkey is running.
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*/
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public static boolean isMonkeyRunning() {
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return SystemProperties.getBoolean("ro.monkey", false);
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}
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/**
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* Returns whether the device is voice-capable (meaning, it is also a phone).
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*/
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public static boolean isVoiceCapable(Context context) {
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TelephonyManager telephony =
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(TelephonyManager) context.getSystemService(Context.TELEPHONY_SERVICE);
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return telephony != null && telephony.isVoiceCapable();
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}
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}
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