Home | History | Annotate | Download | only in livepicker 
      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.wallpaper.livepicker;
     18 
     19 import android.app.Activity;
     20 import android.app.AlertDialog;
     21 import android.app.Dialog;
     22 import android.app.DialogFragment;
     23 import android.app.Fragment;
     24 import android.app.WallpaperInfo;
     25 import android.os.Bundle;
     26 import android.content.DialogInterface;
     27 import android.content.Intent;
     28 import android.util.Log;
     29 import android.view.LayoutInflater;
     30 import android.view.View;
     31 import android.view.ViewGroup;
     32 import android.widget.AdapterView;
     33 import android.widget.BaseAdapter;
     34 
     35 public class LiveWallpaperActivity extends Activity {
     36     private static final String LOG_TAG = "LiveWallpapersPicker";
     37     private static final int REQUEST_PREVIEW = 100;
     38 
     39     @Override
     40     protected void onCreate(Bundle savedInstanceState) {
     41         super.onCreate(savedInstanceState);
     42         setContentView(R.layout.live_wallpaper_base);
     43 
     44         Fragment fragmentView = getFragmentManager().findFragmentById(R.id.live_wallpaper_fragment);
     45         if (fragmentView == null) {
     46             /* When the screen is XLarge, the fragment is not included in the layout, so show it
     47              * as a dialog
     48              */
     49             DialogFragment fragment = WallpaperDialog.newInstance();
     50             fragment.show(getFragmentManager(), "dialog");
     51         }
     52     }
     53 
     54     @Override
     55     protected void onActivityResult(int requestCode, int resultCode, Intent data) {
     56         super.onActivityResult(requestCode, resultCode, data);
     57 
     58         if (requestCode == REQUEST_PREVIEW) {
     59             if (resultCode == RESULT_OK) finish();
     60         }
     61     }
     62 
     63     public static class WallpaperDialog extends DialogFragment implements
     64             AdapterView.OnItemClickListener{
     65         private static final String EMBEDDED_KEY = "com.android.wallpaper.livepicker."
     66                 + "LiveWallpaperActivity$WallpaperDialog.EMBEDDED_KEY";
     67         private LiveWallpaperListAdapter mAdapter;
     68         private boolean mEmbedded;
     69 
     70         public static WallpaperDialog newInstance() {
     71             WallpaperDialog dialog = new WallpaperDialog();
     72             dialog.setCancelable(true);
     73             return dialog;
     74         }
     75 
     76         @Override
     77         public void onCreate(Bundle savedInstanceState) {
     78             super.onCreate(savedInstanceState);
     79             if (savedInstanceState != null && savedInstanceState.containsKey(EMBEDDED_KEY)) {
     80                 mEmbedded = savedInstanceState.getBoolean(EMBEDDED_KEY);
     81             } else {
     82                 mEmbedded = isInLayout();
     83             }
     84         }
     85 
     86         @Override
     87         public void onSaveInstanceState(Bundle outState) {
     88             outState.putBoolean(EMBEDDED_KEY, mEmbedded);
     89         }
     90 
     91         @Override
     92         public void onDismiss(DialogInterface dialog) {
     93             /* On orientation changes, the dialog is effectively "dismissed" so this is called
     94              * when the activity is no longer associated with this dying dialog fragment. We
     95              * should just safely ignore this case by checking if getActivity() returns null
     96              */
     97             Activity activity = getActivity();
     98             if (activity != null) {
     99                 activity.finish();
    100             }
    101         }
    102 
    103         @Override
    104         public Dialog onCreateDialog(Bundle savedInstanceState) {
    105             final int contentInset = getResources().getDimensionPixelSize(
    106                     R.dimen.dialog_content_inset);
    107             View view = generateView(getActivity().getLayoutInflater(), null);
    108 
    109             AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
    110             builder.setNegativeButton(R.string.wallpaper_cancel, null);
    111             builder.setTitle(R.string.live_wallpaper_picker_title);
    112             builder.setView(view, contentInset, contentInset, contentInset, contentInset);
    113             return builder.create();
    114         }
    115 
    116         @Override
    117         public View onCreateView(LayoutInflater inflater, ViewGroup container,
    118                 Bundle savedInstanceState) {
    119             /* If this fragment is embedded in the layout of this activity, then we should
    120              * generate a view to display. Otherwise, a dialog will be created in
    121              * onCreateDialog()
    122              */
    123             if (mEmbedded) {
    124                 return generateView(inflater, container);
    125             }
    126             return null;
    127         }
    128 
    129         @SuppressWarnings("unchecked")
    130         private View generateView(LayoutInflater inflater, ViewGroup container) {
    131             View layout = inflater.inflate(R.layout.live_wallpaper_list, container, false);
    132 
    133             mAdapter = new LiveWallpaperListAdapter(getActivity());
    134             AdapterView<BaseAdapter> adapterView =
    135                     (AdapterView<BaseAdapter>) layout.findViewById(android.R.id.list);
    136             adapterView.setAdapter(mAdapter);
    137             adapterView.setOnItemClickListener(this);
    138             adapterView.setEmptyView(layout.findViewById(android.R.id.empty));
    139             return layout;
    140         }
    141 
    142         public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
    143             LiveWallpaperListAdapter.LiveWallpaperInfo wallpaperInfo =
    144                     (LiveWallpaperListAdapter.LiveWallpaperInfo) mAdapter.getItem(position);
    145             final Intent intent = wallpaperInfo.intent;
    146             final WallpaperInfo info = wallpaperInfo.info;
    147             LiveWallpaperPreview.showPreview(getActivity(), REQUEST_PREVIEW, intent, info);
    148         }
    149     }
    150 }
    151