ProgressDialog和TabGroup

我创建了一个ProgressDialog以显示用户何时单击按钮。ProgressDialog和TabGroup

我顺便说一下活动是内部的Tabgroup

这是我在ProgressDialog

final ProgressDialog myPd_ring=ProgressDialog.show(MainActivity.this, "Please wait", "Loading please wait..", true); 
     myPd_ring.setCancelable(false); 
     new Thread(new Runnable() { 
       public void run() { 
        // TODO Auto-generated method stub 
        try 
        { 
         //Some data binding here.... 
        }catch(Exception e){ 

        } 
        myPd_ring.dismiss(); 
        Intent edit = new Intent(getDialogContext(), MerchantActivity.class); 
        TabGroupActivity parentsActivity = (TabGroupActivity)getParent(); 
        parentsActivity.startChildActivity("MerchantActivity", edit); 
       } 
     }).start();

代码现在一切正常，直到当我使用的意图。我得到一个错误

这里是我的logcat：

10-17 16:35:21.429: E/AndroidRuntime(11604): java.lang.RuntimeException: Unable to instantiate activity ComponentInfo{com.mobileoptima.perxclub/com.mobileoptima.perxclub.MerchantActivity}: java.lang.RuntimeException: Can't create handler inside thread that has not called Looper.prepare() 
10-17 16:35:21.429: E/AndroidRuntime(11604): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1573) 
10-17 16:35:21.429: E/AndroidRuntime(11604): at android.app.ActivityThread.startActivityNow(ActivityThread.java:1491) 
10-17 16:35:21.429: E/AndroidRuntime(11604): at android.app.LocalActivityManager.moveToState(LocalActivityManager.java:127) 
10-17 16:35:21.429: E/AndroidRuntime(11604): at android.app.LocalActivityManager.startActivity(LocalActivityManager.java:339) 
10-17 16:35:21.429: E/AndroidRuntime(11604): at com.mobileoptima.perxclub.TabGroupActivity.startChildActivity(TabGroupActivity.java:55) 
10-17 16:35:21.429: E/AndroidRuntime(11604): at com.mobileoptima.perxclub.CardsActivity$2.run(CardsActivity.java:318) 
10-17 16:35:21.429: E/AndroidRuntime(11604): at java.lang.Thread.run(Thread.java:1019) 
10-17 16:35:21.429: E/AndroidRuntime(11604): Caused by: java.lang.RuntimeException: Can't create handler inside thread that has not called Looper.prepare() 

10-17 16:35:21.429: E/AndroidRuntime(11604): at android.os.Handler.<init>(Handler.java:121) 
10-17 16:35:21.429: E/AndroidRuntime(11604): at android.app.Activity.<init>(Activity.java:680) 
10-17 16:35:21.429: E/AndroidRuntime(11604): at com.mobileoptima.perxclub.MerchantActivity.<init>(MerchantActivity.java:63) 
10-17 16:35:21.429: E/AndroidRuntime(11604): at java.lang.Class.newInstanceImpl(Native Method) 
10-17 16:35:21.429: E/AndroidRuntime(11604): at java.lang.Class.newInstance(Class.java:1409) 
10-17 16:35:21.429: E/AndroidRuntime(11604): at android.app.Instrumentation.newActivity(Instrumentation.java:1021) 
10-17 16:35:21.429: E/AndroidRuntime(11604): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1565) 
10-17 16:35:21.429: E/AndroidRuntime(11604): 
... 6 more

为什么会出现这个错误？就我而言，我打电话给家长。请帮忙？？

来源

2012-10-17 Androyds

尝试在主UI线程上运行parentsActivity.startChildActivity("MerchantActivity", edit);。事情是这样的：

runOnUiThread(new Runnable() { 
    public void run() { 
     parentsActivity.startChildActivity("MerchantActivity", edit); 
    } 
});

顺便说一句，你将不得不宣布TabGroupActivity parentsActivity和Intent edit作为final这一点。

来源

2012-10-17 08:31:05

没关系，我找到了我正在寻找的答案。我只是补充，它的作品像魅力

   runOnUiThread(new Runnable() { 
           public void run() { 
           // Toast.makeText(activity, "Hello", Toast.LENGTH_SHORT).show(); 
           Intent edit = new Intent(getParent(), MerchantActivity.class); 
           TabGroupActivity parentsActivity = (TabGroupActivity)getParent(); 
           parentsActivity.startChildActivity("MerchantActivity", edit); 
           } 
          });

来源

2012-10-17 08:31:33 Androyds

ProgressDialog和TabGroup

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