通知激活

Question

我想在用户拉下通知并点击该通知时调用该活动...我该怎么做？

这里是我的代码：

public class SetReminder extends AppCompatActivity { 
int notifyID = 1088; 

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

    TextView helpsubtitle = (TextView)findViewById(R.id.subtitle_help); 
    Typeface typeface = Typeface.createFromAsset(getAssets(), "beyond_the_mountains.ttf"); 
    helpsubtitle.setTypeface(typeface); 

    NotificationCompat.Builder mBuilder = 

      new NotificationCompat.Builder(this) 
        .setSmallIcon(R.drawable.diamond) 
        .setContentTitle("Crystallise") 
        .setContentText("making your thoughts crystal clear"); 
    NotificationManager mNotificationManager = 
      (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE); 
    mNotificationManager.notify(notifyID, mBuilder.build()); 
} 
} 

Answer 1

首先，你需要创建一个Intent以指定您希望当用户点击该通知，即可启动该活动。假设你想MainActivity打开单击该通知时，可以使用下面的代码创建的意图：
Intent intent = new Intent(SetReminder.this, MainActivity.class);

然后，你必须指定一个PendingIntent，这是你给NotificationManager令牌，或任何其他外国申请一般：

PendingIntent pendingIntent = PendingIntent.getActivity(
     context, 0, 
     intent, PendingIntent.FLAG_CANCEL_CURRENT 
); 

使用.setContentIntent(pendingIntent)应用此pendingIntent到您的通知。

你的最终代码应该是这样的：

public class SetReminder extends AppCompatActivity { 
    int notifyID = 1088; 

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

     TextView helpsubtitle = (TextView)findViewById(R.id.subtitle_help); 
     Typeface typeface = Typeface.createFromAsset(getAssets(), "beyond_the_mountains.ttf"); 
helpsubtitle.setTypeface(typeface); 

     Intent intent = new Intent(SetReminder.this, MainActivity.class); 
     PendingIntent pendingIntent = PendingIntent.getActivity(
       context, 0, 
       intent, PendingIntent.FLAG_CANCEL_CURRENT 
     ); 
     NotificationCompat.Builder mBuilder = new NotificationCompat.Builder(this) 
       .setSmallIcon(R.drawable.diamond) 
       .setContentIntent(pendingIntent) 
       .setContentTitle("Crystallise") 
       .setContentText("making your thoughts crystal clear"); 
     NotificationManager mNotificationManager = 
      (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE); 
     mNotificationManager.notify(notifyID, mBuilder.build()); 
    } 
}