package com.example.joy.remoteviewstest;

import android.appwidget.AppWidgetManager;
import android.appwidget.AppWidgetProvider;
import android.content.Context;
import android.widget.RemoteViews;

/**
 * Implementation of App Widget functionality.
 */
public class MyAppWidgetProvider extends AppWidgetProvider {

 static void updateAppWidget(Context context, AppWidgetManager appWidgetManager,
    int appWidgetId) {

 CharSequence widgetText = context.getString(R.string.appwidget_text);　　
 // Construct the RemoteViews object
 RemoteViews views = new RemoteViews(context.getPackageName(), R.layout.my_app_widget_provider);
 views.setTextViewText(R.id.appwidget_text, widgetText);

 // Instruct the widget manager to update the widget
 appWidgetManager.updateAppWidget(appWidgetId, views);
 }

 @Override
 public void onUpdate(Context context, AppWidgetManager appWidgetManager, int[] appWidgetIds) {
 // There may be multiple widgets active, so update all of them
 for (int appWidgetId : appWidgetIds) {
  updateAppWidget(context, appWidgetManager, appWidgetId);
 }
 }

 @Override
 public void onEnabled(Context context) {
 // Enter relevant functionality for when the first widget is created
 }

 @Override
 public void onDisabled(Context context) {
 // Enter relevant functionality for when the last widget is disabled
 }
}

<?xml version="1.0" encoding="utf-8"?>

public void onReceive(Context context, Intent intent) {
 // Protect against rogue update broadcasts (not really a security issue,
 // just filter bad broacasts out so subclasses are less likely to crash).
 String action = intent.getAction();
 if (AppWidgetManager.ACTION_APPWIDGET_UPDATE.equals(action)) {
  Bundle extras = intent.getExtras();
  if (extras != null) {
  int[] appWidgetIds = extras.getIntArray(AppWidgetManager.EXTRA_APPWIDGET_IDS);
  if (appWidgetIds != null && appWidgetIds.length > 0) {
   this.onUpdate(context, AppWidgetManager.getInstance(context), appWidgetIds);
  }
  }
 } else if (AppWidgetManager.ACTION_APPWIDGET_DELETED.equals(action)) {
  Bundle extras = intent.getExtras();
  if (extras != null && extras.containsKey(AppWidgetManager.EXTRA_APPWIDGET_ID)) {
  final int appWidgetId = extras.getInt(AppWidgetManager.EXTRA_APPWIDGET_ID);
  this.onDeleted(context, new int[] { appWidgetId });
  }
 } else if (AppWidgetManager.ACTION_APPWIDGET_OPTIONS_CHANGED.equals(action)) {
  Bundle extras = intent.getExtras();
  if (extras != null && extras.containsKey(AppWidgetManager.EXTRA_APPWIDGET_ID)
   && extras.containsKey(AppWidgetManager.EXTRA_APPWIDGET_OPTIONS)) {
  int appWidgetId = extras.getInt(AppWidgetManager.EXTRA_APPWIDGET_ID);
  Bundle widgetExtras = extras.getBundle(AppWidgetManager.EXTRA_APPWIDGET_OPTIONS);
  this.onAppWidgetOptionsChanged(context, AppWidgetManager.getInstance(context),
   appWidgetId, widgetExtras);
  }
 } else if (AppWidgetManager.ACTION_APPWIDGET_ENABLED.equals(action)) {
  this.onEnabled(context);
 } else if (AppWidgetManager.ACTION_APPWIDGET_DISABLED.equals(action)) {
  this.onDisabled(context);
 } else if (AppWidgetManager.ACTION_APPWIDGET_RESTORED.equals(action)) {
  Bundle extras = intent.getExtras();
  if (extras != null) {
  int[] oldIds = extras.getIntArray(AppWidgetManager.EXTRA_APPWIDGET_OLD_IDS);
  int[] newIds = extras.getIntArray(AppWidgetManager.EXTRA_APPWIDGET_IDS);
  if (oldIds != null && oldIds.length > 0) {
   this.onRestored(context, oldIds, newIds);
   this.onUpdate(context, AppWidgetManager.getInstance(context), newIds);
  }
  }
 }
 }

<?xml version="1.0" encoding="utf-8"?>


 
 
 
 

 

 
 

<?xml version="1.0" encoding="utf-8"?>

package com.example.joy.remoteviewstest;

import android.app.PendingIntent;
import android.appwidget.AppWidgetManager;
import android.appwidget.AppWidgetProvider;
import android.content.ComponentName;
import android.content.Context;
import android.content.Intent;
import android.os.Bundle;
import android.text.TextUtils;
import android.widget.RemoteViews;
import android.widget.Toast;

public class MulAppWidgetProvider extends AppWidgetProvider {

 public static final String CHANGE_IMAGE = "com.example.joy.action.CHANGE_IMAGE";

 private RemoteViews mRemoteViews;
 private ComponentName mComponentName;

 private int[] imgs = new int[]{
  R.mipmap.a1,
  R.mipmap.b2,
  R.mipmap.c3,
  R.mipmap.d4,
  R.mipmap.e5,
  R.mipmap.f6
 };


 @Override
 public void onUpdate(Context context, AppWidgetManager appWidgetManager, int[] appWidgetIds) {
 mRemoteViews = new RemoteViews(context.getPackageName(), R.layout.mul_app_widget_provider);
 mRemoteViews.setImageViewResource(R.id.iv_test, R.mipmap.ic_launcher);
 mRemoteViews.setTextViewText(R.id.btn_test, "點(diǎn)擊跳轉(zhuǎn)到Activity");
 Intent skipIntent = new Intent(context, MainActivity.class);
 PendingIntent pi = PendingIntent.getActivity(context, 200, skipIntent, PendingIntent.FLAG_CANCEL_CURRENT);
 mRemoteViews.setOnClickPendingIntent(R.id.btn_test, pi);

 // 設(shè)置 ListView 的adapter。
 // (01) intent: 對(duì)應(yīng)啟動(dòng) ListViewService(RemoteViewsService) 的intent
 // (02) setRemoteAdapter: 設(shè)置 ListView 的適配器
 // 通過(guò)setRemoteAdapter將 ListView 和ListViewService關(guān)聯(lián)起來(lái)，
 // 以達(dá)到通過(guò) GridWidgetService 更新 gridview 的目的
 Intent lvIntent = new Intent(context, ListViewService.class);
 mRemoteViews.setRemoteAdapter(R.id.lv_test, lvIntent);
 mRemoteViews.setEmptyView(R.id.lv_test,android.R.id.empty);

 // 設(shè)置響應(yīng) ListView 的intent模板
 // 說(shuō)明：“集合控件(如GridView、ListView、StackView等)”中包含很多子元素，如GridView包含很多格子。
 // 它們不能像普通的按鈕一樣通過(guò) setOnClickPendingIntent 設(shè)置點(diǎn)擊事件，必須先通過(guò)兩步。
 // (01) 通過(guò) setPendingIntentTemplate 設(shè)置 “intent模板”，這是比不可少的！
 // (02) 然后在處理該“集合控件”的RemoteViewsFactory類(lèi)的getViewAt()接口中 通過(guò) setOnClickFillInIntent 設(shè)置“集合控件的某一項(xiàng)的數(shù)據(jù)”
 
 /*
  * setPendingIntentTemplate 設(shè)置pendingIntent 模板
  * setOnClickFillInIntent 可以將fillInIntent 添加到pendingIntent中
  */
 Intent toIntent = new Intent(CHANGE_IMAGE);
 PendingIntent pendingIntent = PendingIntent.getBroadcast(context, 200, toIntent, PendingIntent.FLAG_UPDATE_CURRENT);
 mRemoteViews.setPendingIntentTemplate(R.id.lv_test, pendingIntent);


 mComponentName = new ComponentName(context, MulAppWidgetProvider.class);
 appWidgetManager.updateAppWidget(mComponentName, mRemoteViews);
 }

 @Override
 public void onReceive(Context context, Intent intent) {
 super.onReceive(context, intent);
 if(TextUtils.equals(CHANGE_IMAGE,intent.getAction())){
  Bundle extras = intent.getExtras();
  int position = extras.getInt(ListViewService.INITENT_DATA);
  mRemoteViews = new RemoteViews(context.getPackageName(), R.layout.mul_app_widget_provider);
  mRemoteViews.setImageViewResource(R.id.iv_test, imgs[position]);
  mComponentName = new ComponentName(context, MulAppWidgetProvider.class);
  AppWidgetManager.getInstance(context).updateAppWidget(mComponentName, mRemoteViews);
 }
 }
}

package com.example.joy.remoteviewstest;

import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;

public class MainActivity extends AppCompatActivity {

 @Override
 protected void onCreate(Bundle savedInstanceState) {
 super.onCreate(savedInstanceState);
 setContentView(R.layout.activity_main);
 }
}

package com.example.joy.remoteviewstest;

import android.content.Context;
import android.content.Intent;
import android.os.Bundle;
import android.widget.RemoteViews;
import android.widget.RemoteViewsService;

import java.util.ArrayList;
import java.util.List;

public class ListViewService extends RemoteViewsService {
 public static final String INITENT_DATA = "extra_data";

 @Override
 public RemoteViewsFactory onGetViewFactory(Intent intent) {
 return new ListRemoteViewsFactory(this.getApplicationContext(), intent);
 }

 private class ListRemoteViewsFactory implements RemoteViewsService.RemoteViewsFactory {

 private Context mContext;

 private List mList = new ArrayList<>();

 public ListRemoteViewsFactory(Context context, Intent intent) {
  mContext = context;
 }

 @Override
 public void onCreate() {
  mList.add("一");
  mList.add("二");
  mList.add("三");
  mList.add("四");
  mList.add("五");
  mList.add("六");
 }

 @Override
 public void onDataSetChanged() {

 }

 @Override
 public void onDestroy() {
  mList.clear();
 }

 @Override
 public int getCount() {
  return mList.size();
 }

 @Override
 public RemoteViews getViewAt(int position) {
  RemoteViews views = new RemoteViews(mContext.getPackageName(), android.R.layout.simple_list_item_1);
  views.setTextViewText(android.R.id.text1, "item:" + mList.get(position));

  Bundle extras = new Bundle();
  extras.putInt(ListViewService.INITENT_DATA, position);
  Intent changeIntent = new Intent();
  changeIntent.setAction(MulAppWidgetProvider.CHANGE_IMAGE);
  changeIntent.putExtras(extras);

  /* android.R.layout.simple_list_item_1 --- id --- text1
  * listview的item click：將 changeIntent 發(fā)送，
  * changeIntent 它默認(rèn)的就有action 是provider中使用 setPendingIntentTemplate 設(shè)置的action*/
  views.setOnClickFillInIntent(android.R.id.text1, changeIntent);
  return views;
 }

 /* 在更新界面的時(shí)候如果耗時(shí)就會(huì)顯示 正在加載... 的默認(rèn)字樣，但是你可以更改這個(gè)界面
  * 如果返回null 顯示默認(rèn)界面
  * 否則 加載自定義的，返回RemoteViews
  */
 @Override
 public RemoteViews getLoadingView() {
  return null;
 }

 @Override
 public int getViewTypeCount() {
  return 1;
 }

 @Override
 public long getItemId(int position) {
  return position;
 }

 @Override
 public boolean hasStableIds() {
  return false;
 }
 }
}

<?xml version="1.0" encoding="utf-8"?>


 
 
  
  

  
  
 

 
  
  
  
  
  
  
 

 

 

Intent skipIntent = new Intent(context, MainActivity.class);
 PendingIntent pi = PendingIntent.getActivity(context, 200, skipIntent, PendingIntent.FLAG_CANCEL_CURRENT);
 mRemoteViews.setOnClickPendingIntent(R.id.btn_test, pi);

public RemoteViews getViewAt(int position){}