android 在自己的程序中添加Widget
package com.test;import java.util.List;import android.app.Activity;import android.appwidget.AppWidgetHost;import android.appwidget.AppWidgetHostView;import android.appwidget.AppWidgetManager;import android.appwidget.AppWidgetProviderInfo;import android.content.Intent;import android.os.Bundle;import android.view.View;import android.widget.LinearLayout;public class AndroidImActivity extends Activity { //private WallpaperManager manager;private static final int APPWIDGET_HOST_ID = 1024;private AppWidgetHost mAppWidgetHost ;private AppWidgetManager manager;int current; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); manager = AppWidgetManager.getInstance(this); mAppWidgetHost = new AppWidgetHost(this, APPWIDGET_HOST_ID); mAppWidgetHost.startListening(); current = mAppWidgetHost.allocateAppWidgetId();// manager = WallpaperManager.getInstance(this); } /* private void deCodeImage(){ InputStream in = getResources().openRawResource(R.drawable.logo); Bitmap image = BitmapFactory.decodeStream(in); int height = image.getHeight(); int width = image.getWidth(); image.getPixel(1, 1); } public void test(View v){ deCodeImage(); manager.setWallpaperOffsetSteps(1.0f / 2, 0); IBinder windowToken = v.getWindowToken();manager.setWallpaperOffsets(windowToken , Math.max(0.f, Math.min(0.3f, 1.f)), 0);//manager.sendWallpaperCommand(windowToken, "android.wallpaper.tap", -1, -1, -1,null); current++; if(current ==3) current=0;//// try {////manager.clear();////} catch (IOException e) {////e.printStackTrace();////} }*/ public void test(View v){// Intent intent = new Intent(AppWidgetManager.ACTION_APPWIDGET_PICK); int appWidgetId = mAppWidgetHost.allocateAppWidgetId();// intent.putExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, appWidgetId );// startActivityForResult(intent, 101); List<AppWidgetProviderInfo> insts = manager.getInstalledProviders(); for(AppWidgetProviderInfo info :insts){ if(info.provider.getClassName().equals("com.android.music.MediaAppWidgetProvider")){ manager.bindAppWidgetId(appWidgetId, info.provider); break; } } System.out.println(appWidgetId); AppWidgetProviderInfo info =manager. getAppWidgetInfo(appWidgetId); AppWidgetHostView view = mAppWidgetHost.createView(this, appWidgetId,info); view.setAppWidget(appWidgetId, info); view.setMinimumHeight(info.minHeight); view.setMinimumWidth(info.minWidth); LinearLayout l = (LinearLayout) findViewById(R.id.roots); l.addView(view); } @Override protected void onActivityResult(int requestCode, int resultCode, Intent data) { System.out.println(requestCode +"==============="+ resultCode); if(requestCode == 101){ int appWidgetId = data.getIntExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, -1); System.out.println(appWidgetId); AppWidgetProviderInfo info =manager. getAppWidgetInfo(appWidgetId); AppWidgetHostView view = mAppWidgetHost.createView(this, appWidgetId,info); view.setAppWidget(appWidgetId, info); view.setMinimumHeight(info.minHeight); view.setMinimumWidth(info.minWidth); LinearLayout l = (LinearLayout) findViewById(R.id.roots); l.addView(view); } }}?