| /* |
| * Copyright (C) 2009 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.example.android.apis.app; |
| |
| // Need the following import to get access to the app resources, since this |
| // class is in a sub-package. |
| import com.example.android.apis.R; |
| |
| import java.io.IOException; |
| |
| import android.app.Activity; |
| import android.app.WallpaperManager; |
| import android.graphics.Color; |
| import android.graphics.PorterDuff; |
| import android.graphics.drawable.Drawable; |
| import android.os.Bundle; |
| import android.view.View; |
| import android.view.View.OnClickListener; |
| import android.widget.Button; |
| import android.widget.ImageView; |
| |
| /** |
| * <h3>SetWallpaper Activity</h3> |
| * |
| * <p>This demonstrates the how to write an activity that gets the current system wallpaper, |
| * modifies it and sets the modified bitmap as system wallpaper.</p> |
| */ |
| public class SetWallpaperActivity extends Activity { |
| final static private int[] mColors = |
| {Color.BLUE, Color.GREEN, Color.RED, Color.LTGRAY, Color.MAGENTA, Color.CYAN, |
| Color.YELLOW, Color.WHITE}; |
| |
| /** |
| * Initialization of the Activity after it is first created. Must at least |
| * call {@link android.app.Activity#setContentView setContentView()} to |
| * describe what is to be displayed in the screen. |
| */ |
| @Override |
| protected void onCreate(Bundle savedInstanceState) { |
| // Be sure to call the super class. |
| super.onCreate(savedInstanceState); |
| // See res/layout/wallpaper_2.xml for this |
| // view layout definition, which is being set here as |
| // the content of our screen. |
| setContentView(R.layout.wallpaper_2); |
| final WallpaperManager wallpaperManager = WallpaperManager.getInstance(this); |
| final Drawable wallpaperDrawable = wallpaperManager.getDrawable(); |
| final ImageView imageView = (ImageView) findViewById(R.id.imageview); |
| imageView.setDrawingCacheEnabled(true); |
| imageView.setImageDrawable(wallpaperDrawable); |
| |
| Button randomize = (Button) findViewById(R.id.randomize); |
| randomize.setOnClickListener(new OnClickListener() { |
| public void onClick(View view) { |
| int mColor = (int) Math.floor(Math.random() * mColors.length); |
| wallpaperDrawable.setColorFilter(mColors[mColor], PorterDuff.Mode.MULTIPLY); |
| imageView.setImageDrawable(wallpaperDrawable); |
| imageView.invalidate(); |
| } |
| }); |
| |
| Button setWallpaper = (Button) findViewById(R.id.setwallpaper); |
| setWallpaper.setOnClickListener(new OnClickListener() { |
| public void onClick(View view) { |
| try { |
| wallpaperManager.setBitmap(imageView.getDrawingCache()); |
| finish(); |
| } catch (IOException e) { |
| e.printStackTrace(); |
| } |
| } |
| }); |
| } |
| } |
| |