Question

这是我的代码，它自己运行的代码，但我试图用新行将所有数据添加到我的Textview1，所以它以这种格式显示

22:22
13:44
33:33
xx：xx
XX：XX

但应用程序崩溃是因为这个Textview1代码出错了。

private TextView textView1;

的OnCreate

textView1 = (TextView)findViewById(R.id.textView1);

请告诉我为什么我的Textview1崩溃应用程序？

            for(int j=0;j<hrefElements.size();j++)
            {
                //System.out.println("Links: "+links[j]);
                System.out.println("Title: "+title[j]);
                textView1.setText("SUBH: "+timee[j] +" \n");
                System.out.println("SUBH: "+timee[j]);
                System.out.println("DUHR: "+timee1[j]);
                System.out.println("ASR: "+timee2[j]);
                System.out.println("MAGHRIB: "+timee3[j]);
                System.out.println("ISHA: "+timee4[j]);








stacktracr error log

    Process: testtt.myapplication, PID: 22819
    java.lang.RuntimeException: An error occured while executing doInBackground()
            at android.os.AsyncTask$3.done(AsyncTask.java:300)
            at java.util.concurrent.FutureTask.finishCompletion(FutureTask.java:355)
            at java.util.concurrent.FutureTask.setException(FutureTask.java:222)
            at java.util.concurrent.FutureTask.run(FutureTask.java:242)
            at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:231)
            at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1112)
            at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:587)
            at java.lang.Thread.run(Thread.java:841)
     Caused by: android.view.ViewRootImpl$CalledFromWrongThreadException: Only the original thread that created a view hierarchy can touch its views.
            at android.view.ViewRootImpl.checkThread(ViewRootImpl.java:6915)
            at android.view.ViewRootImpl.requestLayout(ViewRootImpl.java:1056)
            at android.view.View.requestLayout(View.java:17321)
            at android.view.View.requestLayout(View.java:17321)
            at android.view.View.requestLayout(View.java:17321)
            at android.view.View.requestLayout(View.java:17321)
            at android.view.View.requestLayout(View.java:17321)
            at android.view.View.requestLayout(View.java:17321)
            at android.widget.RelativeLayout.requestLayout(RelativeLayout.java:352)
            at android.view.View.requestLayout(View.java:17321)
            at android.widget.TextView.checkForRelayout(TextView.java:8009)
            at android.widget.TextView.setText(TextView.java:4841)
            at android.widget.TextView.setText(TextView.java:4673)
            at android.widget.TextView.setText(TextView.java:4648)
            at testtt.myapplication.MainActivity$JsoupAsyncTask.doInBackground(MainActivity.java:102)
            at testtt.myapplication.MainActivity$JsoupAsyncTask.doInBackground(MainActivity.java:64)
            at android.os.AsyncTask$2.call(AsyncTask.java:288)
            at java.util.concurrent.FutureTask.run(FutureTask.java:237)
            at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:231)
            at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1112)
            at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:587)
            at java.lang.Thread.run(Thread.java:841)
08-14 03:45:04.741  22819-22819/testtt.myapplication E/ActivityThread﹕ Performing pause of activity that is not resumed: {testtt.myapplication/testtt.myapplication.MainActivity}
    java.lang.RuntimeException: Performing pause of activity that is not resumed: {testtt.myapplication/testtt.myapplication.MainActivity}
            at android.app.ActivityThread.performPauseActivity(ActivityThread.java:3215)
            at android.app.ActivityThread.performPauseActivity(ActivityThread.java:3203)
            at android.app.ActivityThread.handlePauseActivity(ActivityThread.java:3181)
            at android.app.ActivityThread.access$1100(ActivityThread.java:161)
            at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1282)
            at android.os.Handler.dispatchMessage(Handler.java:102)
            at android.os.Looper.loop(Looper.java:157)
            at android.app.ActivityThread.main(ActivityThread.java:5356)
            at java.lang.reflect.Method.invokeNative(Native Method)
            at java.lang.reflect.Method.invoke(Method.java:515)
            at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1265)
            at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1081)
            at de.robv.android.xposed.XposedBridge.main(XposedBridge.java:132)
            at dalvik.system.NativeStart.main(Native Method)

Answer 1

Caused by: android.view.ViewRootImpl$CalledFromWrongThreadException: Only the original 
        thread that created a view hierarchy can touch its views.

您正在从后台线程设置textview的文本。您必须在主（UI）线程上执行此操作。更改您的AsyncTask只需在doInBackground()中构建字符串，然后更新onPostExecute()中的文字视图。

Android（Textview1.settext）崩溃的应用

1 个答案: