| /* |
| * Copyright (C) 2008 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.launcher2; |
| |
| import android.app.Activity; |
| import android.app.AlertDialog; |
| import android.app.Dialog; |
| import android.app.DialogFragment; |
| import android.app.FragmentTransaction; |
| import android.app.WallpaperManager; |
| import android.content.Context; |
| import android.content.DialogInterface; |
| import android.content.res.Resources; |
| import android.graphics.BitmapFactory; |
| import android.graphics.Bitmap; |
| import android.graphics.drawable.Drawable; |
| import android.os.Bundle; |
| import android.os.AsyncTask; |
| import android.util.Log; |
| import android.view.LayoutInflater; |
| import android.view.View; |
| import android.view.ViewGroup; |
| import android.view.View.OnClickListener; |
| import android.widget.AdapterView; |
| import android.widget.BaseAdapter; |
| import android.widget.Gallery; |
| import android.widget.GridView; |
| import android.widget.ImageView; |
| import android.widget.ListAdapter; |
| import android.widget.SpinnerAdapter; |
| |
| import java.io.IOException; |
| import java.util.ArrayList; |
| |
| import com.android.launcher.R; |
| |
| public class WallpaperChooser extends Activity { |
| private static final String TAG = "Launcher.WallpaperChooser"; |
| |
| private ViewGroup mWallpaperChooserBase; |
| private ImageView mImageView = null; |
| private Bitmap mBitmap = null; |
| |
| private ArrayList<Integer> mThumbs; |
| private ArrayList<Integer> mImages; |
| private WallpaperLoader mLoader; |
| |
| @Override |
| public void onCreate(Bundle icicle) { |
| super.onCreate(icicle); |
| /* We need some container to attach to in order for the fragment to be |
| * considered embedded, so inflate an empty FrameLayout and use that |
| * as the parent view |
| */ |
| setContentView(R.layout.wallpaper_chooser_base); |
| mWallpaperChooserBase = (ViewGroup) findViewById(R.id.wallpaper_chooser_base); |
| |
| findWallpapers(); |
| |
| DialogFragment newFragment = new WallpaperDialogFragment(this); |
| if (LauncherApplication.isScreenXLarge()) { |
| // Display a dialog instead of embedding the view in the activity |
| newFragment.show(getFragmentManager(), "dialog"); |
| } else { |
| // Embed the fragment in the base view |
| FragmentTransaction ft = getFragmentManager().openTransaction(); |
| ft.add(R.id.wallpaper_chooser_base, newFragment); |
| ft.commit(); |
| } |
| } |
| |
| @Override |
| protected void onDestroy() { |
| super.onDestroy(); |
| |
| if (mLoader != null && mLoader.getStatus() != WallpaperLoader.Status.FINISHED) { |
| mLoader.cancel(true); |
| mLoader = null; |
| } |
| } |
| |
| private void findWallpapers() { |
| mThumbs = new ArrayList<Integer>(24); |
| mImages = new ArrayList<Integer>(24); |
| |
| final Resources resources = getResources(); |
| // Context.getPackageName() may return the "original" package name, |
| // com.android.launcher2; Resources needs the real package name, |
| // com.android.launcher. So we ask Resources for what it thinks the |
| // package name should be. |
| final String packageName = resources.getResourcePackageName(R.array.wallpapers); |
| |
| addWallpapers(resources, packageName, R.array.wallpapers); |
| addWallpapers(resources, packageName, R.array.extra_wallpapers); |
| } |
| |
| private void addWallpapers(Resources resources, String packageName, int list) { |
| final String[] extras = resources.getStringArray(list); |
| for (String extra : extras) { |
| int res = resources.getIdentifier(extra, "drawable", packageName); |
| if (res != 0) { |
| final int thumbRes = resources.getIdentifier(extra + "_small", |
| "drawable", packageName); |
| |
| if (thumbRes != 0) { |
| mThumbs.add(thumbRes); |
| mImages.add(res); |
| // Log.d(TAG, "addWallpapers: [" + packageName + "]: " + extra + " (" + res + ")"); |
| } |
| } |
| } |
| } |
| |
| private void selectWallpaper(int position) { |
| try { |
| WallpaperManager wpm = (WallpaperManager)getSystemService(WALLPAPER_SERVICE); |
| wpm.setResource(mImages.get(position)); |
| setResult(RESULT_OK); |
| finish(); |
| } catch (IOException e) { |
| Log.e(TAG, "Failed to set wallpaper: " + e); |
| } |
| } |
| |
| private class WallpaperDialogFragment extends DialogFragment implements |
| AdapterView.OnItemSelectedListener, AdapterView.OnItemClickListener { |
| private Context mContext; |
| |
| public WallpaperDialogFragment(Context context) { |
| super(); |
| mContext = context; |
| setCancelable(true); |
| } |
| |
| @Override |
| public void onDismiss(DialogInterface dialog) { |
| WallpaperChooser.this.finish(); |
| } |
| |
| /* This will only be called when in XLarge mode, since this Fragment is invoked like |
| * a dialog in that mode |
| */ |
| @Override |
| public Dialog onCreateDialog(Bundle savedInstanceState) { |
| final View v = getLayoutInflater().inflate( |
| R.layout.wallpaper_chooser, mWallpaperChooserBase, false); |
| |
| GridView gridView = (GridView) v.findViewById(R.id.gallery); |
| gridView.setOnItemClickListener(this); |
| gridView.setAdapter(new ImageAdapter(WallpaperChooser.this)); |
| |
| final int viewInset = |
| getResources().getDimensionPixelSize(R.dimen.alert_dialog_content_inset); |
| |
| AlertDialog.Builder builder = new AlertDialog.Builder(mContext); |
| builder.setCancelable(true); |
| builder.setNegativeButton(R.string.wallpaper_cancel, null); |
| builder.setTitle(R.string.pick_wallpaper); |
| builder.setView(gridView, viewInset, viewInset, viewInset, viewInset); |
| return builder.create(); |
| } |
| |
| /* This will be called on both XLarge and small screens, but since the dialog |
| * is already created on XLarge, we want to skip this view creation |
| */ |
| @Override |
| public View onCreateView(LayoutInflater inflater, ViewGroup container, |
| Bundle savedInstanceState) { |
| /* Only generate a custom view if this fragment is being embedded in a view, |
| * i.e: on a small screen |
| */ |
| if (!LauncherApplication.isScreenXLarge()) { |
| View view = inflater.inflate(R.layout.wallpaper_chooser, container, false); |
| |
| final Gallery gallery = (Gallery) view.findViewById(R.id.gallery); |
| gallery.setCallbackDuringFling(false); |
| gallery.setOnItemSelectedListener(this); |
| gallery.setAdapter(new ImageAdapter(WallpaperChooser.this)); |
| |
| View setButton = view.findViewById(R.id.set); |
| setButton.setOnClickListener(new OnClickListener() { |
| @Override |
| public void onClick(View v) { |
| selectWallpaper(gallery.getSelectedItemPosition()); |
| } |
| }); |
| mImageView = (ImageView) view.findViewById(R.id.wallpaper); |
| return view; |
| } |
| return super.onCreateView(inflater, container, savedInstanceState); |
| } |
| |
| // Click handler for the Dialog's GridView |
| @Override |
| public void onItemClick(AdapterView<?> parent, View view, int position, long id) { |
| selectWallpaper(position); |
| } |
| |
| // Selection handler for the embedded Gallery view |
| @Override |
| public void onItemSelected(AdapterView<?> parent, View view, int position, long id) { |
| if (mLoader != null && mLoader.getStatus() != WallpaperLoader.Status.FINISHED) { |
| mLoader.cancel(); |
| } |
| mLoader = (WallpaperLoader) new WallpaperLoader().execute(position); |
| } |
| |
| @Override |
| public void onNothingSelected(AdapterView<?> parent) { |
| } |
| } |
| |
| private class ImageAdapter extends BaseAdapter implements ListAdapter, SpinnerAdapter { |
| private LayoutInflater mLayoutInflater; |
| |
| ImageAdapter(WallpaperChooser context) { |
| mLayoutInflater = context.getLayoutInflater(); |
| } |
| |
| public int getCount() { |
| return mThumbs.size(); |
| } |
| |
| public Object getItem(int position) { |
| return position; |
| } |
| |
| public long getItemId(int position) { |
| return position; |
| } |
| |
| public View getView(int position, View convertView, ViewGroup parent) { |
| ImageView image; |
| |
| if (convertView == null) { |
| image = (ImageView) mLayoutInflater.inflate(R.layout.wallpaper_item, parent, false); |
| } else { |
| image = (ImageView) convertView; |
| } |
| |
| int thumbRes = mThumbs.get(position); |
| image.setImageResource(thumbRes); |
| Drawable thumbDrawable = image.getDrawable(); |
| if (thumbDrawable != null) { |
| thumbDrawable.setDither(true); |
| } else { |
| Log.e(TAG, "Error decoding thumbnail resId=" + thumbRes + " for wallpaper #" |
| + position); |
| } |
| |
| return image; |
| } |
| } |
| |
| class WallpaperLoader extends AsyncTask<Integer, Void, Bitmap> { |
| BitmapFactory.Options mOptions; |
| |
| WallpaperLoader() { |
| mOptions = new BitmapFactory.Options(); |
| mOptions.inDither = false; |
| mOptions.inPreferredConfig = Bitmap.Config.ARGB_8888; |
| } |
| |
| @Override |
| protected Bitmap doInBackground(Integer... params) { |
| if (isCancelled()) return null; |
| try { |
| return BitmapFactory.decodeResource(getResources(), |
| mImages.get(params[0]), mOptions); |
| } catch (OutOfMemoryError e) { |
| return null; |
| } |
| } |
| |
| @Override |
| protected void onPostExecute(Bitmap b) { |
| if (b == null) return; |
| |
| if (!isCancelled() && !mOptions.mCancel) { |
| // Help the GC |
| if (mBitmap != null) { |
| mBitmap.recycle(); |
| } |
| |
| // This should always be the case, but check anyways |
| final ImageView view = mImageView; |
| if (view != null) { |
| view.setImageBitmap(b); |
| |
| mBitmap = b; |
| |
| final Drawable drawable = view.getDrawable(); |
| drawable.setFilterBitmap(true); |
| drawable.setDither(true); |
| |
| view.postInvalidate(); |
| } |
| |
| mLoader = null; |
| } else { |
| b.recycle(); |
| } |
| } |
| |
| void cancel() { |
| mOptions.requestCancelDecode(); |
| super.cancel(true); |
| } |
| } |
| } |