从不同的线程的Andr​​oid更新视图 [英] Update view from different thread Android

问题描述

我做一个简单的Andr​​oid应用程序接收到短信时将更新其视图。这是code为我的接收器类

I make a simple Android Apps that will update its view when an SMS is received. This is the code for my receiver class

public class SMSReceiver extends BroadcastReceiver {

@Override
public void onReceive(Context context, Intent intent) {
    // TODO Auto-generated method stub
    intent.setClass(context, SMSReceiverService.class);
    intent.putExtra("result", getResultCode());
    WakefulIntentService.sendWakefulWork(context.getApplicationContext(), intent);
}

}

这类将调用SMSReceiverService类来处理迎面而来的短信和执行方法notifyMessageReceived，这是如下图所示。

That class will call SMSReceiverService class to handle the oncoming SMS and execute method notifyMessageReceived, which is shown below.

private void notifyMessageRecevied(SMS message) {
    if(!isInMyApps()) {
                launchPopUp();
    }
    else {
        //updating view should go here
    }
}

问题是，我不知道如何更新我的活动视图（这是在单独的类，而不是SMSReceiverService类），当我试图在我的活动更新我的TextView，它抛出的CalledFromWrongThreadException。任何人都可以请帮我吗？

The problem is, I don't know how to update the view in my activity (which is in separate class, not the SMSReceiverService class), when I tried to update my TextView in my activity, it thrown an CalledFromWrongThreadException. Can anybody please help me ?

在此先感谢和抱歉我的英语不好...

Thanks in advance, and sorry about my bad English...

推荐答案

您可以创建一个活动变量来保存你想要的活动的实例。

You can create an activity variable to hold the instance of the activity you want.

在 SMSReceiver （你要拨打的那个）：

In SMSReceiver (the one you want to call):

SMSReceiverService.setMainActivity(this);

在 SMSReceiverService （您想从更新一）：

public static SMSReceiver smsActivity;
public static void setMainActivity(SMSReceiver activity) 
{
    smsActivity = activity;      
}

...

smsActivity.runOnUiThread(new Runnable() {
     public void run() {    
             try{
                    smsActivity.textView.setText("");
             }
             catch{}
     }
}

假设 SMSActivity 是包含您要更新视图中的文件。

Assuming SMSActivity is the file that contains the view you want to update.

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