public class MainActivity extends AppCompatActivity {
  private static final int NO_2 =0x2;
  @Override
  protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
  }
  //按鈕的點擊方法
  public void show(View v){
    NotificationCompat.Builder builder = new NotificationCompat.Builder(this);
    builder.setSmallIcon(R.mipmap.guojia);
    builder.setContentTitle("郭嘉");//系統(tǒng)限制，可能不顯示
    builder.setContentText("我們打袁紹吧");//系統(tǒng)限制，可能不顯示
    builder.setDefaults(Notification.DEFAULT_ALL);
    //添加寬視圖
    NotificationCompat.InboxStyle style = new NotificationCompat.InboxStyle();
    style.setBigContentTitle("十勝十敗");
    //由手機屏幕像素決定顯示多少
    style.addLine("第一是道勝");
    style.addLine("第二是義勝");
    style.addLine("第三是治勝");
    style.addLine("第四是度勝");
    style.addLine("第五是謀勝");
    style.addLine("第六是德勝");
    style.addLine("第七是仁勝");
    style.addLine("第八是明勝");
    style.addLine("第九是文勝");
    style.addLine("第十是武勝");
    style.setSummaryText("作者：郭嘉");//添加概要
    builder.setStyle(style);
    Notification n = builder.build();
    NotificationManager manager = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
    manager.notify(NO_2, n);
  }
}