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Asked: 2026-06-14T15:39:27+00:00

I am following this tutorial and I can make it work just fine, but

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I am following this tutorial and I can make it work just fine, but when I try to update the UI to fit the new Holo.Light in android 4.2 the app crashes at launch, and I don’t know why.

I have been searching for a way to update the UI but I could not get it to work.

I wonder if anybody could help me? tell me how? Give me a link that you know would work?
or even do it yourself?

i get this error log:

11-20 09:50:39.523: I/dalvikvm(1460): threadid=3: reacting to signal 3
11-20 09:50:39.682: I/dalvikvm(1460): Wrote stack traces to '/data/anr/traces.txt'
11-20 09:50:39.892: I/dalvikvm(1460): threadid=3: reacting to signal 3
11-20 09:50:40.003: I/dalvikvm(1460): Wrote stack traces to '/data/anr/traces.txt'
11-20 09:50:40.102: D/AndroidRuntime(1460): Shutting down VM
11-20 09:50:40.102: W/dalvikvm(1460): threadid=1: thread exiting with uncaught exception (group=0x409c01f8)
11-20 09:50:40.132: E/AndroidRuntime(1460): FATAL EXCEPTION: main
11-20 09:50:40.132: E/AndroidRuntime(1460): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.androidhive.jsonparsing/com.androidhive.jsonparsing.AndroidJSONParsingActivity}: android.os.NetworkOnMainThreadException
11-20 09:50:40.132: E/AndroidRuntime(1460):     at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1956)
11-20 09:50:40.132: E/AndroidRuntime(1460):     at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1981)
11-20 09:50:40.132: E/AndroidRuntime(1460):     at android.app.ActivityThread.access$600(ActivityThread.java:123)
11-20 09:50:40.132: E/AndroidRuntime(1460):     at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1147)
11-20 09:50:40.132: E/AndroidRuntime(1460):     at android.os.Handler.dispatchMessage(Handler.java:99)
11-20 09:50:40.132: E/AndroidRuntime(1460):     at android.os.Looper.loop(Looper.java:137)
11-20 09:50:40.132: E/AndroidRuntime(1460):     at android.app.ActivityThread.main(ActivityThread.java:4424)
11-20 09:50:40.132: E/AndroidRuntime(1460):     at java.lang.reflect.Method.invokeNative(Native Method)
11-20 09:50:40.132: E/AndroidRuntime(1460):     at java.lang.reflect.Method.invoke(Method.java:511)
11-20 09:50:40.132: E/AndroidRuntime(1460):     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:784)
11-20 09:50:40.132: E/AndroidRuntime(1460):     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:551)
11-20 09:50:40.132: E/AndroidRuntime(1460):     at dalvik.system.NativeStart.main(Native Method)
11-20 09:50:40.132: E/AndroidRuntime(1460): Caused by: android.os.NetworkOnMainThreadException
11-20 09:50:40.132: E/AndroidRuntime(1460):     at android.os.StrictMode$AndroidBlockGuardPolicy.onNetwork(StrictMode.java:1099)
11-20 09:50:40.132: E/AndroidRuntime(1460):     at java.net.InetAddress.lookupHostByName(InetAddress.java:391)
11-20 09:50:40.132: E/AndroidRuntime(1460):     at java.net.InetAddress.getAllByNameImpl(InetAddress.java:242)
11-20 09:50:40.132: E/AndroidRuntime(1460):     at java.net.InetAddress.getAllByName(InetAddress.java:220)
11-20 09:50:40.132: E/AndroidRuntime(1460):     at org.apache.http.impl.conn.DefaultClientConnectionOperator.openConnection(DefaultClientConnectionOperator.java:137)
11-20 09:50:40.132: E/AndroidRuntime(1460):     at org.apache.http.impl.conn.AbstractPoolEntry.open(AbstractPoolEntry.java:164)
11-20 09:50:40.132: E/AndroidRuntime(1460):     at org.apache.http.impl.conn.AbstractPooledConnAdapter.open(AbstractPooledConnAdapter.java:119)
11-20 09:50:40.132: E/AndroidRuntime(1460):     at org.apache.http.impl.client.DefaultRequestDirector.execute(DefaultRequestDirector.java:360)
11-20 09:50:40.132: E/AndroidRuntime(1460):     at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:555)
11-20 09:50:40.132: E/AndroidRuntime(1460):     at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:487)
11-20 09:50:40.132: E/AndroidRuntime(1460):     at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:465)
11-20 09:50:40.132: E/AndroidRuntime(1460):     at com.androidhive.jsonparsing.JSONParser.getJSONFromUrl(JSONParser.java:38)
11-20 09:50:40.132: E/AndroidRuntime(1460):     at com.androidhive.jsonparsing.AndroidJSONParsingActivity.onCreate(AndroidJSONParsingActivity.java:53)
11-20 09:50:40.132: E/AndroidRuntime(1460):     at android.app.Activity.performCreate(Activity.java:4465)
11-20 09:50:40.132: E/AndroidRuntime(1460):     at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1049)
11-20 09:50:40.132: E/AndroidRuntime(1460):     at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1920)
11-20 09:50:40.132: E/AndroidRuntime(1460):     ... 11 more
11-20 09:50:40.392: I/dalvikvm(1460): threadid=3: reacting to signal 3
11-20 09:50:40.412: I/dalvikvm(1460): Wrote stack traces to '/data/anr/traces.txt'
11-20 09:50:40.791: I/dalvikvm(1460): threadid=3: reacting to signal 3
11-20 09:50:40.962: I/dalvikvm(1460): Wrote stack traces to '/data/anr/traces.txt'
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1 Answer

  1. Editorial Team

    There are two Solution of this Problem.

    1) Don’t write network call in Main UIThread, Use Async Task for that.

    2) Write below code into your MainActivity file after setContentView(R.layout.activity_main);

    if (android.os.Build.VERSION.SDK_INT > 9) {
    StrictMode.ThreadPolicy policy = new StrictMode.ThreadPolicy.Builder().permitAll().build();
    StrictMode.setThreadPolicy(policy);
}

    And below import statement into your java file.

    import android.os.StrictMode;

    and see below link for more information.

    Twitter connect error

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