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 17 package com.android.gallery3d.gadget; 18 19 import com.android.gallery3d.R; 20 import com.android.gallery3d.app.Gallery; 21 22 import android.app.Activity; 23 import android.content.Intent; 24 import android.content.res.AssetFileDescriptor; 25 import android.net.Uri; 26 import android.os.Bundle; 27 import android.util.Log; 28 import android.widget.Toast; 29 30 public class WidgetClickHandler extends Activity { 31 private static final String TAG = "PhotoAppWidgetClickHandler"; 32 33 private boolean isValidDataUri(Uri dataUri) { 34 if (dataUri == null) return false; 35 try { 36 AssetFileDescriptor f = getContentResolver() 37 .openAssetFileDescriptor(dataUri, "r"); 38 f.close(); 39 return true; 40 } catch (Throwable e) { 41 Log.w(TAG, "cannot open uri: " + dataUri, e); 42 return false; 43 } 44 } 45 46 @Override 47 protected void onCreate(Bundle savedState) { 48 super.onCreate(savedState); 49 Intent intent = getIntent(); 50 if (isValidDataUri(intent.getData())) { 51 startActivity(new Intent(Intent.ACTION_VIEW, intent.getData())); 52 } else { 53 Toast.makeText(this, 54 R.string.no_such_item, Toast.LENGTH_LONG).show(); 55 startActivity(new Intent(this, Gallery.class)); 56 } 57 finish(); 58 } 59 } 60
