App limits sample
Shows how to expose app restrictions for both simple types and custom intents. Change-Id: I95d422d1d637bd4bdb4f731d862975a160b65a50
This commit is contained in:
Amith Yamasani
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/*
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* Copyright (C) 2013 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy 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,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.example.android.applimits;
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import android.content.Intent;
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import android.content.RestrictionEntry;
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import android.os.Bundle;
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import android.preference.CheckBoxPreference;
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import android.preference.ListPreference;
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import android.preference.MultiSelectListPreference;
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import android.preference.Preference;
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import android.preference.Preference.OnPreferenceChangeListener;
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import android.preference.PreferenceActivity;
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import java.util.ArrayList;
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import java.util.HashSet;
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import java.util.Set;
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public class CustomRestrictionsActivity extends PreferenceActivity
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implements OnPreferenceChangeListener {
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private static final String KEY_CUSTOM_PREF = "custom";
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private static final String KEY_CHOICE_PREF = "choice";
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private static final String KEY_MULTI_PREF = "multi";
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ArrayList<RestrictionEntry> mRestrictions;
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CheckBoxPreference mCustomPref;
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ListPreference mChoicePref;
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MultiSelectListPreference mMultiPref;
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RestrictionEntry mCustomEntry;
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RestrictionEntry mChoiceEntry;
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RestrictionEntry mMultiEntry;
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@Override
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public void onCreate(Bundle savedInstanceState) {
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super.onCreate(savedInstanceState);
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mRestrictions = getIntent().getParcelableArrayListExtra(
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Intent.EXTRA_RESTRICTIONS);
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if (savedInstanceState != null
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&& savedInstanceState.containsKey(Intent.EXTRA_RESTRICTIONS)) {
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mRestrictions = savedInstanceState.getParcelableArrayList(Intent.EXTRA_RESTRICTIONS);
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}
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this.addPreferencesFromResource(R.xml.custom_prefs);
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mCustomPref = (CheckBoxPreference) findPreference(KEY_CUSTOM_PREF);
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mChoicePref = (ListPreference) findPreference(KEY_CHOICE_PREF);
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mMultiPref = (MultiSelectListPreference) findPreference(KEY_MULTI_PREF);
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// Transfer the saved values into the preference hierarchy
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for (RestrictionEntry entry : mRestrictions) {
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if (entry.getKey().equals(GetRestrictionsReceiver.KEY_CUSTOM)) {
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mCustomPref.setChecked(entry.getSelectedState());
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mCustomEntry = entry;
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} else if (entry.getKey().equals(GetRestrictionsReceiver.KEY_CHOICE)) {
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mChoicePref.setValue(entry.getSelectedString());
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mChoiceEntry = entry;
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} else if (entry.getKey().equals(GetRestrictionsReceiver.KEY_MULTI_SELECT)) {
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HashSet<String> set = new HashSet<String>();
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for (String value : entry.getAllSelectedStrings()) {
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set.add(value);
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}
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mMultiPref.setValues(set);
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mMultiEntry = entry;
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}
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}
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mCustomPref.setOnPreferenceChangeListener(this);
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mChoicePref.setOnPreferenceChangeListener(this);
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mMultiPref.setOnPreferenceChangeListener(this);
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Intent intent = new Intent(getIntent());
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intent.putParcelableArrayListExtra(Intent.EXTRA_RESTRICTIONS,
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mRestrictions);
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setResult(RESULT_OK, intent);
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}
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public void onSaveInstanceState(Bundle outState) {
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super.onSaveInstanceState(outState);
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outState.putParcelableArrayList(Intent.EXTRA_RESTRICTIONS, mRestrictions);
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}
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@Override
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public boolean onPreferenceChange(Preference preference, Object newValue) {
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if (preference == mCustomPref) {
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mCustomEntry.setSelectedState((Boolean) newValue);
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} else if (preference == mChoicePref) {
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mChoiceEntry.setSelectedString((String) newValue);
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} else if (preference == mMultiPref) {
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String[] selectedStrings = new String[((Set<String>)newValue).size()];
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int i = 0;
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for (String value : (Set<String>) newValue) {
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selectedStrings[i++] = value;
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}
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mMultiEntry.setAllSelectedStrings(selectedStrings);
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}
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Intent intent = new Intent(getIntent());
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intent.putParcelableArrayListExtra(Intent.EXTRA_RESTRICTIONS,
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mRestrictions);
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setResult(RESULT_OK, intent);
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return true;
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}
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}
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@@ -0,0 +1,150 @@
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/*
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* Copyright (C) 2013 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy 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,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.example.android.applimits;
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import android.app.Activity;
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import android.content.BroadcastReceiver;
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import android.content.Context;
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import android.content.Intent;
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import android.content.RestrictionEntry;
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import android.content.BroadcastReceiver.PendingResult;
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import android.content.res.Resources;
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import android.os.Bundle;
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import android.util.Log;
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import java.util.ArrayList;
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import java.util.List;
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public class GetRestrictionsReceiver extends BroadcastReceiver {
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private static final String TAG = "AppLimits$GetRestrictionsReceiver";
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static final String KEY_CUSTOM = "custom_or_not";
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static final String KEY_CHOICE = "choice";
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static final String KEY_MULTI_SELECT = "multi";
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@Override
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public void onReceive(final Context context, Intent intent) {
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final PendingResult result = goAsync();
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final ArrayList<RestrictionEntry> oldRestrictions =
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intent.getParcelableArrayListExtra(Intent.EXTRA_RESTRICTIONS);
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Log.i(TAG, "oldRestrictions = " + oldRestrictions);
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new Thread() {
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public void run() {
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createRestrictions(context, result, oldRestrictions);
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}
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}.start();
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}
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public static void populateCustomEntry(Resources res, RestrictionEntry entry) {
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entry.setType(RestrictionEntry.TYPE_BOOLEAN);
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entry.setTitle(res.getString(R.string.custom_or_not_title));
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}
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public static void populateChoiceEntry(Resources res, RestrictionEntry reSingleChoice) {
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String[] choiceEntries = res.getStringArray(R.array.choice_entry_entries);
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String[] choiceValues = res.getStringArray(R.array.choice_entry_values);
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if (reSingleChoice.getSelectedString() == null) {
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reSingleChoice.setSelectedString(choiceValues[0]);
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}
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reSingleChoice.setTitle(res.getString(R.string.choice_entry_title));
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reSingleChoice.setChoiceEntries(choiceEntries);
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reSingleChoice.setChoiceValues(choiceValues);
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reSingleChoice.setType(RestrictionEntry.TYPE_CHOICE);
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}
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public static void populateMultiEntry(Resources res, RestrictionEntry reMultiSelect) {
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String[] multiEntries = res.getStringArray(R.array.multi_entry_entries);
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String[] multiValues = res.getStringArray(R.array.multi_entry_values);
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if (reMultiSelect.getAllSelectedStrings() == null) {
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reMultiSelect.setAllSelectedStrings(new String[0]);
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}
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reMultiSelect.setTitle(res.getString(R.string.multi_entry_title));
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reMultiSelect.setChoiceEntries(multiEntries);
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reMultiSelect.setChoiceValues(multiValues);
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reMultiSelect.setType(RestrictionEntry.TYPE_MULTI_SELECT);
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}
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private ArrayList<RestrictionEntry> initRestrictions(Context context) {
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ArrayList<RestrictionEntry> newRestrictions = new ArrayList<RestrictionEntry>();
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Resources res = context.getResources();
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RestrictionEntry reCustomOrNot = new RestrictionEntry(KEY_CUSTOM, false);
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populateCustomEntry(res, reCustomOrNot);
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newRestrictions.add(reCustomOrNot);
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RestrictionEntry reSingleChoice = new RestrictionEntry(KEY_CHOICE, (String) null);
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populateChoiceEntry(res, reSingleChoice);
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newRestrictions.add(reSingleChoice);
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RestrictionEntry reMultiSelect = new RestrictionEntry(KEY_MULTI_SELECT, (String[]) null);
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populateMultiEntry(res, reMultiSelect);
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newRestrictions.add(reMultiSelect);
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return newRestrictions;
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}
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private void createRestrictions(Context context,
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PendingResult result, ArrayList<RestrictionEntry> old) {
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Resources res = context.getResources();
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ArrayList<RestrictionEntry> newEntries = initRestrictions(context);
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// If this is the first time, create the default restrictions entries and return them.
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if (old == null) {
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Bundle extras = new Bundle();
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extras.putParcelableArrayList(Intent.EXTRA_RESTRICTIONS, newEntries);
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result.setResult(Activity.RESULT_OK, null, extras);
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result.finish();
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return;
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}
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boolean custom = false;
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for (RestrictionEntry entry : old) {
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if (entry.getKey().equals(KEY_CUSTOM)) {
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if (entry.getSelectedState()) {
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custom = true;
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}
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RestrictionEntry newEntry = find(newEntries, KEY_CUSTOM);
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newEntry.setSelectedState(entry.getSelectedState());
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} else if (entry.getKey().equals(KEY_CHOICE)) {
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RestrictionEntry newEntry = find(newEntries, KEY_CHOICE);
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newEntry.setSelectedString(entry.getSelectedString());
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} else if (entry.getKey().equals(KEY_MULTI_SELECT)) {
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RestrictionEntry newEntry = find(newEntries, KEY_MULTI_SELECT);
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newEntry.setAllSelectedStrings(entry.getAllSelectedStrings());
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}
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}
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Bundle extras = new Bundle();
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if (custom) {
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Intent customIntent = new Intent();
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customIntent.setClass(context, CustomRestrictionsActivity.class);
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extras.putParcelable(Intent.EXTRA_RESTRICTIONS_INTENT, customIntent);
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}
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extras.putParcelableArrayList(Intent.EXTRA_RESTRICTIONS, newEntries);
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result.setResult(Activity.RESULT_OK, null, extras);
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result.finish();
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}
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private RestrictionEntry find(ArrayList<RestrictionEntry> entries, String key) {
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for (RestrictionEntry entry : entries) {
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if (entry.getKey().equals(key)) {
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return entry;
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}
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}
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return null;
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}
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}
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