241 lines
8.8 KiB
Java
241 lines
8.8 KiB
Java
/*
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* Copyright (C) 2009 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.android.settings;
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import android.appwidget.AppWidgetManager;
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import android.appwidget.AppWidgetProviderInfo;
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import android.content.DialogInterface;
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import android.content.Intent;
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import android.content.pm.PackageManager;
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import android.graphics.drawable.Drawable;
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import android.os.Bundle;
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import android.os.Parcelable;
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import android.util.Log;
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import java.text.Collator;
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import java.util.List;
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import java.util.ArrayList;
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import java.util.Collections;
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import java.util.Comparator;
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/**
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* Displays a list of {@link AppWidgetProviderInfo} widgets, along with any
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* injected special widgets specified through
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* {@link AppWidgetManager#EXTRA_CUSTOM_INFO} and
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* {@link AppWidgetManager#EXTRA_CUSTOM_EXTRAS}.
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* <p>
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* When an installed {@link AppWidgetProviderInfo} is selected, this activity
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* will bind it to the given {@link AppWidgetManager#EXTRA_APPWIDGET_ID},
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* otherwise it will return the requested extras.
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*/
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public class AppWidgetPickActivity extends ActivityPicker {
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private static final String TAG = "AppWidgetPickActivity";
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private static final boolean LOGD = false;
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private PackageManager mPackageManager;
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private AppWidgetManager mAppWidgetManager;
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/**
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* The allocated {@link AppWidgetManager#EXTRA_APPWIDGET_ID} that this
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* activity is binding.
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*/
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private int mAppWidgetId;
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@Override
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public void onCreate(Bundle icicle) {
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mPackageManager = getPackageManager();
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mAppWidgetManager = AppWidgetManager.getInstance(this);
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super.onCreate(icicle);
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// Set default return data
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setResultData(RESULT_CANCELED, null);
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// Read the appWidgetId passed our direction, otherwise bail if not found
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final Intent intent = getIntent();
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if (intent.hasExtra(AppWidgetManager.EXTRA_APPWIDGET_ID)) {
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mAppWidgetId = intent.getIntExtra(AppWidgetManager.EXTRA_APPWIDGET_ID,
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AppWidgetManager.INVALID_APPWIDGET_ID);
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} else {
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finish();
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}
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}
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/**
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* Create list entries for any custom widgets requested through
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* {@link AppWidgetManager#EXTRA_CUSTOM_INFO}.
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*/
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void putCustomAppWidgets(List<PickAdapter.Item> items) {
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final Bundle extras = getIntent().getExtras();
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// get and validate the extras they gave us
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ArrayList<AppWidgetProviderInfo> customInfo = null;
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ArrayList<Bundle> customExtras = null;
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try_custom_items: {
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customInfo = extras.getParcelableArrayList(AppWidgetManager.EXTRA_CUSTOM_INFO);
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if (customInfo == null || customInfo.size() == 0) {
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Log.i(TAG, "EXTRA_CUSTOM_INFO not present.");
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break try_custom_items;
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}
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int customInfoSize = customInfo.size();
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for (int i=0; i<customInfoSize; i++) {
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Parcelable p = customInfo.get(i);
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if (p == null || !(p instanceof AppWidgetProviderInfo)) {
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customInfo = null;
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Log.e(TAG, "error using EXTRA_CUSTOM_INFO index=" + i);
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break try_custom_items;
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}
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}
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customExtras = extras.getParcelableArrayList(AppWidgetManager.EXTRA_CUSTOM_EXTRAS);
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if (customExtras == null) {
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customInfo = null;
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Log.e(TAG, "EXTRA_CUSTOM_INFO without EXTRA_CUSTOM_EXTRAS");
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break try_custom_items;
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}
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int customExtrasSize = customExtras.size();
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if (customInfoSize != customExtrasSize) {
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Log.e(TAG, "list size mismatch: EXTRA_CUSTOM_INFO: " + customInfoSize
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+ " EXTRA_CUSTOM_EXTRAS: " + customExtrasSize);
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break try_custom_items;
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}
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for (int i=0; i<customExtrasSize; i++) {
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Parcelable p = customExtras.get(i);
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if (p == null || !(p instanceof Bundle)) {
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customInfo = null;
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customExtras = null;
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Log.e(TAG, "error using EXTRA_CUSTOM_EXTRAS index=" + i);
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break try_custom_items;
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}
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}
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}
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if (LOGD) Log.d(TAG, "Using " + customInfo.size() + " custom items");
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putAppWidgetItems(customInfo, customExtras, items);
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}
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/**
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* {@inheritDoc}
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*/
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@Override
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public void onClick(DialogInterface dialog, int which) {
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Intent intent = getIntentForPosition(which);
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int result;
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if (intent.getExtras() != null) {
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// If there are any extras, it's because this entry is custom.
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// Don't try to bind it, just pass it back to the app.
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setResultData(RESULT_OK, intent);
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} else {
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try {
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mAppWidgetManager.bindAppWidgetId(mAppWidgetId, intent.getComponent());
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result = RESULT_OK;
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} catch (IllegalArgumentException e) {
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// This is thrown if they're already bound, or otherwise somehow
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// bogus. Set the result to canceled, and exit. The app *should*
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// clean up at this point. We could pass the error along, but
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// it's not clear that that's useful -- the widget will simply not
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// appear.
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result = RESULT_CANCELED;
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}
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setResultData(result, null);
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}
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finish();
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}
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/**
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* Create list entries for the given {@link AppWidgetProviderInfo} widgets,
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* inserting extras if provided.
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*/
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void putAppWidgetItems(List<AppWidgetProviderInfo> appWidgets,
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List<Bundle> customExtras, List<PickAdapter.Item> items) {
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if (appWidgets == null) return;
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final int size = appWidgets.size();
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for (int i = 0; i < size; i++) {
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AppWidgetProviderInfo info = appWidgets.get(i);
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CharSequence label = info.label;
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Drawable icon = null;
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if (info.icon != 0) {
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icon = mPackageManager.getDrawable(info.provider.getPackageName(), info.icon, null);
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if (icon == null) {
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Log.w(TAG, "Can't load icon drawable 0x" + Integer.toHexString(info.icon)
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+ " for provider: " + info.provider);
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}
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}
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PickAdapter.Item item = new PickAdapter.Item(this, label, icon);
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item.packageName = info.provider.getPackageName();
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item.className = info.provider.getClassName();
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if (customExtras != null) {
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item.extras = customExtras.get(i);
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}
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items.add(item);
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}
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}
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/**
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* Build and return list of items to be shown in dialog. This will mix both
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* installed {@link AppWidgetProviderInfo} and those provided through
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* {@link AppWidgetManager#EXTRA_CUSTOM_INFO}, sorting them alphabetically.
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*/
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@Override
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protected List<PickAdapter.Item> getItems() {
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List<PickAdapter.Item> items = new ArrayList<PickAdapter.Item>();
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putInstalledAppWidgets(items);
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putCustomAppWidgets(items);
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// Sort all items together by label
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Collections.sort(items, new Comparator<PickAdapter.Item>() {
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Collator mCollator = Collator.getInstance();
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public int compare(PickAdapter.Item lhs, PickAdapter.Item rhs) {
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return mCollator.compare(lhs.label, rhs.label);
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}
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});
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return items;
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}
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/**
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* Create list entries for installed {@link AppWidgetProviderInfo} widgets.
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*/
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void putInstalledAppWidgets(List<PickAdapter.Item> items) {
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List<AppWidgetProviderInfo> installed = mAppWidgetManager.getInstalledProviders();
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putAppWidgetItems(installed, null, items);
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}
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/**
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* Convenience method for setting the result code and intent. This method
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* correctly injects the {@link AppWidgetManager#EXTRA_APPWIDGET_ID} that
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* most hosts expect returned.
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*/
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void setResultData(int code, Intent intent) {
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Intent result = intent != null ? intent : new Intent();
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result.putExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, mAppWidgetId);
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setResult(code, result);
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}
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}
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