如何使用选项卡登录Facebook(Facebook集成)后移动另一个活动

Question

HI 我在整个应用程序中使用选项卡为应用程序工作。在一个特定的选项卡中，集成了facebook和twitter.its 单击facebook按钮后，它显示了facebook的登录屏幕，登录成功也工作正常，但是当登录完成时，我想重定向到另一个活动，我在onComplete（） 中使用以下代码

                   View view = Socialtab.group.getLocalActivityManager()  
                       .startActivity("Items", new Intent(Social.this,MainActivity.class)
                       .putExtra("name", name)
                       .putExtra("email", email)
                       .addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP))  
                       .getDecorView();
                    Socialtab.group.replaceView(view); 

它在下一行显示异常

.startActivity("Items", new Intent(Social.this,MainActivity.class)

我的日志猫错误如下：

    java.lang.RuntimeException: Unable to instantiate activity ComponentInfo{com.karmakexpo/com.karmakexpo.MainActivity}: java.lang.RuntimeException: Can't create handler inside thread that has not called Looper.prepare()
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1618)   
at android.app.ActivityThread.startActivityNow(ActivityThread.java:1524)
at android.app.LocalActivityManager.moveToState(LocalActivityManager.java:127)
at android.app.LocalActivityManager.startActivity(LocalActivityManager.java:339)    
at com.karmakexpo.Social.jsonParsing(Social.java:353)   
at com.karmakexpo.Social$SampleRequestListener.onComplete(Social.java:258)  
at com.karmakexpo.facebook.AsyncFacebookRunner$2.run(AsyncFacebookRunner.java:238)
Caused by: java.lang.RuntimeException: Can't create handler inside thread that has not called Looper.prepare()
at android.os.Handler.<init>(Handler.java:121)
at android.app.Activity.<init>(Activity.java:698)
at com.karmakexpo.MainActivity.<init>(MainActivity.java:56)
at java.lang.Class.newInstanceImpl(Native Method)
at java.lang.Class.newInstance(Class.java:1409) at android.app.Instrumentation.newActivity(Instrumentation.java:1021)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1610)
... 6 more

我已经用谷歌搜索过，没有得到任何解决方案，请给出解决方案提前谢谢..

Answer 1

尝试使用runOnUiThread：

  Social.this.runOnUiThread(new Runnable() {
    @Override
    public void run() {
     // TODO Auto-generated method stub
                    View view = Socialtab.group.getLocalActivityManager()  
               .startActivity("Items", new Intent(Social.this,MainActivity.class)
               .putExtra("name", name)
               .putExtra("email", email)
               .addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP))  
               .getDecorView();
               Socialtab.group.replaceView(view); 
    }
   });

Answer 2

您需要在主 UI 线程中运行代码。

试试这个

Looper.prepare();  // Initialize the current thread as a looper. This gives you a chance to create handlers that then reference this looper, before actually starting the loop. 
 View view = Socialtab.group.getLocalActivityManager()  
               .startActivity("Items", new Intent(Social.this,MainActivity.class)
               .putExtra("name", name)
               .putExtra("email", email)
               .addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP))  
               .getDecorView();
               Socialtab.group.replaceView(view); 
Looper.loop();