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POUnable to call Activity from FragmentActivity
 

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  1. POUnable to call Activity from FragmentActivity
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    <p>I am facing one little problem that I want to call Activity from FragmentActivity. How can I do that?</p> <p>This is my code.</p> <p>(Edited)</p> <pre><code>class myClass Extends FragmentActivity { OnCreate() { DirectionalViewPager pager = (DirectionalViewPager) findViewById(R.id.pager); pager.setOrientation(DirectionalViewPager.VERTICAL); pager.setAdapter(new TestFragmentAdapter(getSupportFragmentManager())); // I think problem is with this above line in setting adapter because when I remove above three line it is not showing me error.. } OnClick() { Intent intent = new Intent(myClass.this,nextClass.class); startActivity(intent); } } class TestFragmentAdapter extends FragmentPagerAdapter { final String[] CONTENT = new String[] { "One", "Two", "Three", "Four","Five","Six","Seven","Eight","Nine" }; public TestFragmentAdapter(FragmentManager fm) { super(fm); } @Override public Fragment getItem(int position) { return TestFragment.newInstance(CONTENT[position]); } @Override public int getCount() { return CONTENT.length; } } </code></pre> <p>Error: </p> <pre class="lang-none prettyprint-override"><code>08-25 17:37:04.230: W/dalvikvm(32535): threadid=1: thread exiting with uncaught exception (group=0x400cf760) 08-25 17:37:04.260: E/AndroidRuntime(32535): FATAL EXCEPTION: main 08-25 17:37:04.260: E/AndroidRuntime(32535): java.lang.RuntimeException: Unable to pause activity {com.chirag.teahouse/com.chirag.teahouse.TeaHouseActivity}: java.lang.NullPointerException 08-25 17:37:04.260: E/AndroidRuntime(32535): at android.app.ActivityThread.performPauseActivity(ActivityThread.java:2490) 08-25 17:37:04.260: E/AndroidRuntime(32535): at android.app.ActivityThread.performPauseActivity(ActivityThread.java:2447) 08-25 17:37:04.260: E/AndroidRuntime(32535): at android.app.ActivityThread.handlePauseActivity(ActivityThread.java:2425) 08-25 17:37:04.260: E/AndroidRuntime(32535): at android.app.ActivityThread.access$1700(ActivityThread.java:122) 08-25 17:37:04.260: E/AndroidRuntime(32535): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1012) 08-25 17:37:04.260: E/AndroidRuntime(32535): at android.os.Handler.dispatchMessage(Handler.java:99) 08-25 17:37:04.260: E/AndroidRuntime(32535): at android.os.Looper.loop(Looper.java:132) 08-25 17:37:04.260: E/AndroidRuntime(32535): at android.app.ActivityThread.main(ActivityThread.java:4028) 08-25 17:37:04.260: E/AndroidRuntime(32535): at java.lang.reflect.Method.invokeNative(Native Method) 08-25 17:37:04.260: E/AndroidRuntime(32535): at java.lang.reflect.Method.invoke(Method.java:491) 08-25 17:37:04.260: E/AndroidRuntime(32535): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:844) 08-25 17:37:04.260: E/AndroidRuntime(32535): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:602) 08-25 17:37:04.260: E/AndroidRuntime(32535): at dalvik.system.NativeStart.main(Native Method) 08-25 17:37:04.260: E/AndroidRuntime(32535): Caused by: java.lang.NullPointerException 08-25 17:37:04.260: E/AndroidRuntime(32535): at android.support.v4.view.ViewPager.onSaveInstanceState(ViewPager.java:507) 08-25 17:37:04.260: E/AndroidRuntime(32535): at com.directionalviewpager.DirectionalViewPager.onSaveInstanceState(DirectionalViewPager.java:454) 08-25 17:37:04.260: E/AndroidRuntime(32535): at android.view.View.dispatchSaveInstanceState(View.java:8258) 08-25 17:37:04.260: E/AndroidRuntime(32535): at android.view.ViewGroup.dispatchSaveInstanceState(ViewGroup.java:1990) 08-25 17:37:04.260: E/AndroidRuntime(32535): at android.view.ViewGroup.dispatchSaveInstanceState(ViewGroup.java:1996) 08-25 17:37:04.260: E/AndroidRuntime(32535): at android.view.ViewGroup.dispatchSaveInstanceState(ViewGroup.java:1996) 08-25 17:37:04.260: E/AndroidRuntime(32535): at android.view.View.saveHierarchyState(View.java:8241) 08-25 17:37:04.260: E/AndroidRuntime(32535): at com.android.internal.policy.impl.PhoneWindow.saveHierarchyState(PhoneWindow.java:1603) 08-25 17:37:04.260: E/AndroidRuntime(32535): at android.app.Activity.onSaveInstanceState(Activity.java:1164) 08-25 17:37:04.260: E/AndroidRuntime(32535): at android.support.v4.app.FragmentActivity.onSaveInstanceState(FragmentActivity.java:470) 08-25 17:37:04.260: E/AndroidRuntime(32535): at android.app.Activity.performSaveInstanceState(Activity.java:1114) 08-25 17:37:04.260: E/AndroidRuntime(32535): at android.app.Instrumentation.callActivityOnSaveInstanceState(Instrumentation.java:1184) 08-25 17:37:04.260: E/AndroidRuntime(32535): at android.app.ActivityThread.performPauseActivity(ActivityThread.java:2472) 08-25 17:37:04.260: E/AndroidRuntime(32535): ... 12 more </code></pre>
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    1. USTom Zych
    1. USChirag Patel
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    1. COPost your error (from LogCat)
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      1. USYuviDroid
    2. CORelated : http://stackoverflow.com/questions/5427876/startactivity-doesnt-work-from-a-fragment-in-honeycomb
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    3. CO@YuviDroid For Error I am edited my que.
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      1. USChirag Patel
 

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