| /* |
| * Copyright (C) 2013 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; |
| |
| import android.app.Activity; |
| import android.app.AlertDialog.Builder; |
| import android.content.Context; |
| import android.content.pm.ApplicationInfo; |
| import android.content.pm.PackageManager; |
| import android.content.pm.PackageManager.NameNotFoundException; |
| import android.graphics.drawable.Drawable; |
| import android.preference.ListPreference; |
| import android.util.AttributeSet; |
| import android.view.LayoutInflater; |
| import android.view.View; |
| import android.view.ViewGroup; |
| import android.widget.ArrayAdapter; |
| import android.widget.CheckedTextView; |
| import android.widget.ImageView; |
| import android.widget.ListAdapter; |
| |
| /** |
| * Extends ListPreference to allow us to show the icons for a given list of applications. We do this |
| * because the names of applications are very similar and the user may not be able to determine what |
| * app they are selecting without an icon. |
| */ |
| public class AppListPreference extends ListPreference { |
| private Drawable[] mEntryDrawables; |
| |
| public class AppArrayAdapter extends ArrayAdapter<CharSequence> { |
| private Drawable[] mImageDrawables = null; |
| private int mSelectedIndex = 0; |
| |
| public AppArrayAdapter(Context context, int textViewResourceId, |
| CharSequence[] objects, Drawable[] imageDrawables, int selectedIndex) { |
| super(context, textViewResourceId, objects); |
| mSelectedIndex = selectedIndex; |
| mImageDrawables = imageDrawables; |
| } |
| |
| @Override |
| public View getView(int position, View convertView, ViewGroup parent) { |
| LayoutInflater inflater = ((Activity)getContext()).getLayoutInflater(); |
| View view = inflater.inflate(R.layout.app_preference_item, parent, false); |
| CheckedTextView checkedTextView = (CheckedTextView)view.findViewById(R.id.app_label); |
| checkedTextView.setText(getItem(position)); |
| if (position == mSelectedIndex) { |
| checkedTextView.setChecked(true); |
| } |
| ImageView imageView = (ImageView)view.findViewById(R.id.app_image); |
| imageView.setImageDrawable(mImageDrawables[position]); |
| return view; |
| } |
| } |
| |
| public AppListPreference(Context context, AttributeSet attrs, |
| int defStyleAttr, int defStyleRes) { |
| super(context, attrs, defStyleAttr, defStyleRes); |
| } |
| |
| public AppListPreference(Context context, AttributeSet attrs) { |
| super(context, attrs); |
| } |
| |
| public void setPackageNames(String[] packageNames, String defaultPackageName) { |
| // Look up all package names in PackageManager. Skip ones we can't find. |
| int foundPackages = 0; |
| PackageManager pm = getContext().getPackageManager(); |
| ApplicationInfo[] appInfos = new ApplicationInfo[packageNames.length]; |
| for (int i = 0; i < packageNames.length; i++) { |
| try { |
| appInfos[i] = pm.getApplicationInfo(packageNames[i], 0); |
| foundPackages++; |
| } catch (NameNotFoundException e) { |
| // Leave appInfos[i] uninitialized; it will be skipped in the list. |
| } |
| } |
| |
| // Show the label and icon for each application package. |
| CharSequence[] applicationNames = new CharSequence[foundPackages]; |
| mEntryDrawables = new Drawable[foundPackages]; |
| int index = 0; |
| int selectedIndex = -1; |
| for (ApplicationInfo appInfo : appInfos) { |
| if (appInfo != null) { |
| applicationNames[index] = appInfo.loadLabel(pm); |
| mEntryDrawables[index] = appInfo.loadIcon(pm); |
| if (defaultPackageName != null && |
| appInfo.packageName.contentEquals(defaultPackageName)) { |
| selectedIndex = index; |
| } |
| index++; |
| } |
| } |
| setEntries(applicationNames); |
| setEntryValues(packageNames); |
| if (selectedIndex != -1) { |
| setValueIndex(selectedIndex); |
| } else { |
| setValue(null); |
| } |
| } |
| |
| @Override |
| protected void onPrepareDialogBuilder(Builder builder) { |
| int selectedIndex = findIndexOfValue(getValue()); |
| ListAdapter adapter = new AppArrayAdapter(getContext(), |
| R.layout.app_preference_item, getEntries(), mEntryDrawables, selectedIndex); |
| builder.setAdapter(adapter, this); |
| super.onPrepareDialogBuilder(builder); |
| } |
| } |