Java 从BroadcastReceiver OnReceiver()更新ListView
我想从我的自定义广播接收器更新listview。实现这种功能的最佳方式是什么?这是我的接收代码。 我正在构建一个使用解析API的消息传递应用程序。我尝试从广播机更新适配器,但它一直强制关闭Java 从BroadcastReceiver OnReceiver()更新ListView,java,android,parsing,android-intent,Java,Android,Parsing,Android Intent,我想从我的自定义广播接收器更新listview。实现这种功能的最佳方式是什么?这是我的接收代码。 我正在构建一个使用解析API的消息传递应用程序。我尝试从广播机更新适配器,但它一直强制关闭 package com.example.datatest; import java.util.Iterator; import org.json.JSONException; import org.json.JSONObject; import android.app.NotificationManager
package com.example.datatest;
import java.util.Iterator;
import org.json.JSONException;
import org.json.JSONObject;
import android.app.NotificationManager;
import android.app.PendingIntent;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.support.v4.app.NotificationCompat;
import android.util.Log;
public class MyCustomReceiver extends BroadcastReceiver {
private static final String TAG = "MyCustomReceiver";
@Override
public void onReceive(Context context, Intent intent) {
try {
String action = intent.getAction();
String channel = intent.getExtras().getString("com.parse.Channel");
JSONObject json = new JSONObject(intent.getExtras().getString("com.parse.Data"));
PendingIntent pIntent = PendingIntent.getActivity(context, 0, intent,
PendingIntent.FLAG_UPDATE_CURRENT);
// Create Notification using NotificationCompat.Builder
NotificationCompat.Builder builder = new NotificationCompat.Builder(
context)
// Set Icon
.setSmallIcon(R.drawable.icon)
// Set Ticker Message
.setTicker("New Message")
// Set Title
.setContentTitle("MESSAGE")
// Set Text
.setContentText("TEST")
// Add an Action Button below Notification
.addAction(R.drawable.ic_launcher, "Action Button", pIntent)
// Set PendingIntent into Notification
.setContentIntent(pIntent)
// Dismiss Notification
.setAutoCancel(true);
// Create Notification Manager
NotificationManager notificationmanager = (NotificationManager) context
.getSystemService(Context.NOTIFICATION_SERVICE);
// Build Notification with Notification Manager
notificationmanager.notify(0, builder.build());
Log.d(TAG, "got action " + action + " on channel " + channel + " with:");
Iterator itr = json.keys();
while (itr.hasNext()) {
String key = (String) itr.next();
Log.d(TAG, "..." + key + " => " + json.getString(key));
}
} catch (JSONException e) {
Log.d(TAG, "JSONException: " + e.getMessage());
}
}
}
修复了我的问题,我在清单中的BroadcastReceiver中使用了不必要的操作。您可以创建回调接口,在接收方中设置它,使ui类实现这些方法。就这样