1/* 2 * Copyright (C) 2009 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 17package com.cooliris.app; 18 19import android.app.Activity; 20import android.content.Context; 21import android.os.Handler; 22import android.os.HandlerThread; 23import android.util.DisplayMetrics; 24import android.widget.Toast; 25 26import java.util.HashMap; 27import java.util.TimeZone; 28 29import com.cooliris.media.ReverseGeocoder; 30 31/* 32 * TODO: consider adding HashMap<object, object> for globals globals 33 * TODO: hook up other activity classes to App (besides Gallery and Search) 34 */ 35public class App { 36 static private final HashMap<Context, App> mMap = new HashMap<Context, App>(); 37 38 static public App get(Context context) { 39 return mMap.get(context); 40 } 41 42 public static final TimeZone CURRENT_TIME_ZONE = TimeZone.getDefault(); 43 public static float PIXEL_DENSITY = 0.0f; 44 45 private final Context mContext; 46 private final HandlerThread mHandlerThread = new HandlerThread("AppHandlerThread"); 47 private final Handler mHandler; 48 private ReverseGeocoder mReverseGeocoder = null; 49 50 private boolean mPaused = false; 51 52 public App(Context context) { 53 // register 54 mMap.put(context, this); 55 56 mContext = context; 57 58 if(PIXEL_DENSITY == 0.0f) { 59 DisplayMetrics metrics = new DisplayMetrics(); 60 ((Activity)mContext).getWindowManager().getDefaultDisplay().getMetrics(metrics); 61 PIXEL_DENSITY = metrics.density; 62 } 63 64 mHandlerThread.start(); 65 mHandler = new Handler(mHandlerThread.getLooper()); 66 67 mReverseGeocoder = new ReverseGeocoder(mContext); 68 } 69 70 public void shutdown() { 71 mReverseGeocoder.shutdown(); 72 73 // unregister 74 mMap.put(mContext, null); 75 } 76 77 public Context getContext() { 78 return mContext; 79 } 80 81 public Handler getHandler() { 82 while (mHandler == null) { 83 // Wait till the handler is created. 84 ; 85 } 86 return mHandler; 87 } 88 89 public ReverseGeocoder getReverseGeocoder() { 90 return mReverseGeocoder; 91 } 92 93 public boolean isPaused() { 94 return mPaused; 95 } 96 97// public void onCreate(Bundle savedInstanceState) { 98// } 99// 100// public void onStart() { 101// } 102// 103// public void onRestart() { 104// } 105 106 public void onResume() { 107 mPaused = false; 108 } 109 110 public void onPause() { 111 mReverseGeocoder.flushCache(); 112 mPaused = true; 113 } 114 115// public void onStop() { 116// 117// } 118// 119// public void onDestroy() { 120// } 121 122 public void showToast(final String string, final int duration) { 123 mHandler.post(new Runnable() { 124 public void run() { 125 Toast.makeText(mContext, string, duration).show(); 126 } 127 }); 128 } 129} 130