<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"  xmlns:tools="http://schemas.android.com/tools"  android:layout_width="match_parent"  android:layout_height="match_parent"  android:gravity="center"  tools:context=".MainActivity">  <TextView    android:id="@+id/tv_show"    android:text="點擊發(fā)送消息"    android:textSize="24sp"    android:layout_width="wrap_content"    android:layout_height="wrap_content"/></LinearLayout>

<?xml version="1.0" encoding="utf-8"?><RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"  android:layout_width="match_parent"  android:layout_height="match_parent" >  <ImageView    android:id="@+id/imageView1"    android:layout_width="wrap_content"    android:layout_height="wrap_content"    android:layout_alignParentLeft="true"    android:layout_alignParentTop="true"    android:src="@mipmap/ic_launcher" />  <TextView    android:id="@+id/textView1"    android:layout_width="wrap_content"    android:layout_height="wrap_content"    android:layout_marginLeft="18dp"    android:layout_toRightOf="@+id/imageView1"    android:text="TextView" />  <TextView    android:id="@+id/textView2"    android:layout_width="wrap_content"    android:layout_height="wrap_content"    android:layout_alignLeft="@+id/textView1"    android:layout_below="@+id/textView1"    android:layout_marginTop="15dp"    android:text="TextView" />  <TextView    android:id="@+id/textView3"    android:layout_width="wrap_content"    android:layout_height="wrap_content"    android:layout_below="@+id/textView1"    android:layout_marginLeft="54dp"    android:layout_toRightOf="@+id/textView2"    android:text="TextView" />  <TextView    android:id="@+id/textView4"    android:layout_width="wrap_content"    android:layout_height="wrap_content"    android:layout_alignParentRight="true"    android:layout_below="@+id/textView1"    android:text="TextView" /></RelativeLayout>

<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"       android:orientation="vertical"       android:layout_width="match_parent"       android:layout_height="match_parent">  <TextView    android:layout_width="wrap_content"    android:layout_height="wrap_content"    android:text="New Text"    android:id="@+id/name"    android:textSize="18sp"    android:layout_gravity="center_horizontal"/>  <TextView    android:layout_width="wrap_content"    android:layout_height="wrap_content"    android:text="New Text"    android:id="@+id/price"    android:textSize="18sp"    android:layout_gravity="center_horizontal"/>  <TextView    android:layout_width="wrap_content"    android:layout_height="wrap_content"    android:text="New Text"    android:id="@+id/detail"    android:textSize="18sp"    android:layout_gravity="center_horizontal"/></LinearLayout>

/** * 用于存儲消息數(shù)目 * Created by admin on 2017/9/4. */public class SingletonF{  private int info_number=0;  private static class SingletonHolder {    /**     * 單例對象實例     */    static final SingletonF INSTANCE = new SingletonF();  }  public static SingletonF getInstance() {    return SingletonHolder.INSTANCE;  }  /**  * private的構(gòu)造函數(shù)用于避免外界直接使用new來實例化對象  */  private SingletonF() {}  public int getInfo_number() {    return info_number;  }  public void setInfo_number(int info_number) {    this.info_number = info_number;  }//  /**//   * 若SingletonF implements Serializable則必須實現(xiàn)readResolve方法//   * readResolve方法應(yīng)對單例對象被序列化時候//   *///  private Object readResolve() {//    return getInstance();//  }}

import java.text.SimpleDateFormat;import java.util.Date;import android.app.Notification;import android.app.NotificationManager;import android.app.PendingIntent;import android.content.BroadcastReceiver;import android.content.Context;import android.content.Intent;import android.os.Handler;import android.os.Message;import android.support.v4.app.NotificationCompat;import android.util.Log;import android.widget.RemoteViews;public class MyBroadcastReceiver extends BroadcastReceiver {  private SingletonF singletonF;  private Context context1;  @Override  public void onReceive(Context context, Intent intent) {    this.context1 = context;//   if (intent.getStringExtra("info").equals("廣播發(fā)送了")) {//     Log.i("靜態(tài)廣播：", "廣播我已經(jīng)接受了");//   }    Message message = handler.obtainMessage();    message.what = 0;    handler.sendMessage(message);  }  private Handler handler = new Handler() {    @Override    public void handleMessage(Message msg) {      switch (msg.what) {        case 0:          singletonF = SingletonF.getInstance();          int first = singletonF.getInfo_number();          first++;          Date nowTime = new Date(System.currentTimeMillis());          SimpleDateFormat sdFormatter = new SimpleDateFormat("HH:mm");          String retStrFormatNowDate = sdFormatter.format(nowTime);          singletonF.setInfo_number( first);          RemoteViews contentViews = new RemoteViews(context1.getPackageName(), R.layout.layout_item);          // 通過控件的Id設(shè)置屬性          contentViews.setImageViewResource(R.id.imageView1, R.mipmap.ic_launcher_round);          contentViews.setTextViewText(R.id.textView1, "消息標(biāo)題");          contentViews.setTextViewText(R.id.textView2, "消息內(nèi)容");          contentViews.setTextViewText(R.id.textView3, " (" + first + "條新消息)");          contentViews.setTextViewText(R.id.textView4, "" + retStrFormatNowDate);          // 點擊通知欄跳轉(zhuǎn)的activity          Intent intent = new Intent(context1, ActDetail.class);          PendingIntent pendingIntent = PendingIntent.getActivity(context1, 0, intent,              PendingIntent.FLAG_CANCEL_CURRENT);          NotificationCompat.Builder mBuilder = new NotificationCompat.Builder(context1)              .setSmallIcon(R.mipmap.ic_launcher_round).setTicker("new message");          // 自動管理通知欄消息          mBuilder.setAutoCancel(true);          mBuilder.setContentIntent(pendingIntent);          /// 自定義布局          mBuilder.setContent(contentViews);          // 使用默認提示音          mBuilder.setDefaults(Notification.DEFAULT_ALL);          NotificationManager mNotificationManager = (NotificationManager) context1              .getSystemService(context1.NOTIFICATION_SERVICE);          // notify(int id, Notification notification)若id為同一個值，則通知欄只會顯示一行，并不停更新此消息內(nèi)容          // 若為類似UUID.randomUUID().hashCode()這樣不同的唯一標(biāo)識符，則有幾條消息通知欄就顯示幾行          mNotificationManager.notify(1, mBuilder.build());          break;        default:          break;      }    }  };}

import android.content.Intent;import android.support.v7.app.AppCompatActivity;import android.os.Bundle;import android.view.View;import android.widget.TextView;public class MainActivity extends AppCompatActivity {  private TextView tv_show;  private int btn_number = 0;  @Override  protected void onCreate(Bundle savedInstanceState) {    super.onCreate(savedInstanceState);    setContentView(R.layout.activity_main);    tv_show = (TextView) this.findViewById( R.id.tv_show);    tv_show.setOnClickListener(new View.OnClickListener() {      @Override      public void onClick(View view) {        showNotify();        btn_number++;        tv_show.setText("發(fā)送了" + btn_number + "次廣播");      }    });  }  private void showNotify() {    Intent intent = new Intent();    intent.setAction("MASSAGE_NOTIFICATION");//    intent.putExtra("info", "廣播發(fā)送了");    sendBroadcast(intent);  }  @Override  protected void onStop() {    btn_number = 0;    tv_show.setText("發(fā)送了" + btn_number + "次廣播");    super.onStop();  }  @Override  protected void onPause() {    btn_number = 0;    tv_show.setText("發(fā)送了" + btn_number + "次廣播");    super.onPause();  }  @Override  protected void onDestroy() {    btn_number = 0;    super.onDestroy();  }}

import android.app.NotificationManager;import android.content.Context;import android.os.Bundle;import android.support.annotation.Nullable;import android.support.v7.app.AppCompatActivity;/** * Created by admin on 2017/9/4. */public class ActDetail extends AppCompatActivity{  NotificationManager notificationManager;  SingletonF singletonF;  @Override  protected void onCreate(@Nullable Bundle savedInstanceState) {    super.onCreate(savedInstanceState);    setContentView(R.layout.activity_detail);    singletonF = SingletonF.getInstance();    notificationManager = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);    notificationManager.cancel(1);    singletonF.setInfo_number(0);  }}