1 /* 2 * Copyright (C) 2008 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package com.example.android.apis.appwidget; 18 19 import android.app.Activity; 20 import android.appwidget.AppWidgetManager; 21 import android.content.Context; 22 import android.content.Intent; 23 import android.content.SharedPreferences; 24 import android.os.Bundle; 25 import android.view.View; 26 import android.widget.EditText; 27 28 import java.util.ArrayList; 29 30 // Need the following import to get access to the app resources, since this 31 // class is in a sub-package. 32 import com.example.android.apis.R; 33 34 /** 35 * The configuration screen for the ExampleAppWidgetProvider widget sample. 36 */ 37 public class ExampleAppWidgetConfigure extends Activity { 38 static final String TAG = "ExampleAppWidgetConfigure"; 39 40 private static final String PREFS_NAME 41 = "com.example.android.apis.appwidget.ExampleAppWidgetProvider"; 42 private static final String PREF_PREFIX_KEY = "prefix_"; 43 44 int mAppWidgetId = AppWidgetManager.INVALID_APPWIDGET_ID; 45 EditText mAppWidgetPrefix; 46 ExampleAppWidgetConfigure()47 public ExampleAppWidgetConfigure() { 48 super(); 49 } 50 51 @Override onCreate(Bundle icicle)52 public void onCreate(Bundle icicle) { 53 super.onCreate(icicle); 54 55 // Set the result to CANCELED. This will cause the widget host to cancel 56 // out of the widget placement if they press the back button. 57 setResult(RESULT_CANCELED); 58 59 // Set the view layout resource to use. 60 setContentView(R.layout.appwidget_configure); 61 62 // Find the EditText 63 mAppWidgetPrefix = (EditText)findViewById(R.id.appwidget_prefix); 64 65 // Bind the action for the save button. 66 findViewById(R.id.save_button).setOnClickListener(mOnClickListener); 67 68 // Find the widget id from the intent. 69 Intent intent = getIntent(); 70 Bundle extras = intent.getExtras(); 71 if (extras != null) { 72 mAppWidgetId = extras.getInt( 73 AppWidgetManager.EXTRA_APPWIDGET_ID, AppWidgetManager.INVALID_APPWIDGET_ID); 74 } 75 76 // If they gave us an intent without the widget id, just bail. 77 if (mAppWidgetId == AppWidgetManager.INVALID_APPWIDGET_ID) { 78 finish(); 79 } 80 81 mAppWidgetPrefix.setText(loadTitlePref(ExampleAppWidgetConfigure.this, mAppWidgetId)); 82 } 83 84 View.OnClickListener mOnClickListener = new View.OnClickListener() { 85 public void onClick(View v) { 86 final Context context = ExampleAppWidgetConfigure.this; 87 88 // When the button is clicked, save the string in our prefs and return that they 89 // clicked OK. 90 String titlePrefix = mAppWidgetPrefix.getText().toString(); 91 saveTitlePref(context, mAppWidgetId, titlePrefix); 92 93 // Push widget update to surface with newly set prefix 94 AppWidgetManager appWidgetManager = AppWidgetManager.getInstance(context); 95 ExampleAppWidgetProvider.updateAppWidget(context, appWidgetManager, 96 mAppWidgetId, titlePrefix); 97 98 // Make sure we pass back the original appWidgetId 99 Intent resultValue = new Intent(); 100 resultValue.putExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, mAppWidgetId); 101 setResult(RESULT_OK, resultValue); 102 finish(); 103 } 104 }; 105 106 // Write the prefix to the SharedPreferences object for this widget saveTitlePref(Context context, int appWidgetId, String text)107 static void saveTitlePref(Context context, int appWidgetId, String text) { 108 SharedPreferences.Editor prefs = context.getSharedPreferences(PREFS_NAME, 0).edit(); 109 prefs.putString(PREF_PREFIX_KEY + appWidgetId, text); 110 prefs.commit(); 111 } 112 113 // Read the prefix from the SharedPreferences object for this widget. 114 // If there is no preference saved, get the default from a resource loadTitlePref(Context context, int appWidgetId)115 static String loadTitlePref(Context context, int appWidgetId) { 116 SharedPreferences prefs = context.getSharedPreferences(PREFS_NAME, 0); 117 String prefix = prefs.getString(PREF_PREFIX_KEY + appWidgetId, null); 118 if (prefix != null) { 119 return prefix; 120 } else { 121 return context.getString(R.string.appwidget_prefix_default); 122 } 123 } 124 deleteTitlePref(Context context, int appWidgetId)125 static void deleteTitlePref(Context context, int appWidgetId) { 126 } 127 loadAllTitlePrefs(Context context, ArrayList<Integer> appWidgetIds, ArrayList<String> texts)128 static void loadAllTitlePrefs(Context context, ArrayList<Integer> appWidgetIds, 129 ArrayList<String> texts) { 130 } 131 } 132 133 134 135