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PONeed help on my fragments
 

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  1. PONeed help on my fragments
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    <p>Ive been working with fragment tabs and i havent figure out whats wrong with my codes. because it doesnt have an error but when i run it on a emulator it always crash please help me tnx </p> <p>My MainActivity Code:</p> <pre><code> public class MainActivity extends SherlockFragmentActivity { @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); ActionBar actionbar = getSupportActionBar(); actionbar.setNavigationMode(ActionBar.NAVIGATION_MODE_TABS); actionbar.setTitle("Dancing Fountain Master Control"); ActionBar.Tab Frag1Tab = actionbar.newTab().setText("Song List"); ActionBar.Tab Frag2Tab = actionbar.newTab().setText("About Us"); Fragment Fragment1 = new Fragment_1(); Fragment Fragment2 = new Fragment_2(); Frag1Tab.setTabListener(new MyTabListener(Fragment1)); Frag2Tab.setTabListener(new MyTabListener(Fragment2)); actionbar.addTab(Frag1Tab); actionbar.addTab(Frag2Tab); } class MyTabListener implements ActionBar.TabListener { public Fragment fragment; public MyTabListener(Fragment fragment){ this.fragment = fragment; } @Override public void onTabSelected(Tab tab, FragmentTransaction ft) { // TODO Auto-generated method stub ft.replace(R.id.fragment_container, fragment); } @Override public void onTabUnselected(Tab tab, FragmentTransaction ft) { // TODO Auto-generated method stub } @Override public void onTabReselected(Tab tab, FragmentTransaction ft) { // TODO Auto-generated method stub } } } </code></pre> <p>activity_main.xml</p> <pre><code> &lt;RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent" android:layout_height="match_parent" android:paddingBottom="@dimen/activity_vertical_margin" android:paddingLeft="@dimen/activity_horizontal_margin" android:paddingRight="@dimen/activity_horizontal_margin" android:paddingTop="@dimen/activity_vertical_margin" tools:context=".MainActivity" &gt; &lt;FrameLayout android:id="@+id/fragment_container" android:layout_width="match_parent" android:layout_height="match_parent" /&gt; &lt;/RelativeLayout&gt; </code></pre> <p>Fragment_1</p> <pre><code>public class Fragment_1 extends SherlockFragment implements OnClickListener { Button button1; Button button2; Button button3; Button button4; Button button5; public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { View v = inflater.inflate(R.layout.fragment_1, container, false); button1 = (Button) v.findViewById(R.id.bttn1); button1.setOnClickListener(this); button2 = (Button) v.findViewById(R.id.bttn2); button2.setOnClickListener(this); button3 = (Button) v.findViewById(R.id.bttn3); button3.setOnClickListener(this); button4 = (Button) v.findViewById(R.id.bttn4); button4.setOnClickListener(this); button5 = (Button) v.findViewById(R.id.bttn5); button5.setOnClickListener(this); return v; } @Override public void onClick(View v) { // TODO Auto-generated method stub int id = v.getId(); if(id == R.id.bttn1){ Intent intent = new Intent(v.getContext(), Rock.class); startActivityForResult(intent, 0); } else if(id == R.id.bttn2){ Intent intent = new Intent(v.getContext(), Punk.class); startActivityForResult(intent, 0); } else if(id == R.id.bttn3){ Intent intent = new Intent(v.getContext(), Classical.class); startActivityForResult(intent, 0); } else if(id == R.id.bttn4){ Intent intent = new Intent(v.getContext(), OPM.class); startActivityForResult(intent, 0); } else if(id == R.id.bttn5){ Intent intent = new Intent(v.getContext(), Pop.class); startActivityForResult(intent, 0); } } } </code></pre> <p>and my Logcat</p> <pre><code>09-30 22:17:45.680: E/AndroidRuntime(934): FATAL EXCEPTION: main 09-30 22:17:45.680: E/AndroidRuntime(934): java.lang.RuntimeException: Unable to instantiate activity ComponentInfo{ph.timskie.dancingfountain/ph.timskie.dancingfountain.MainActivity}: java.lang.ClassNotFoundException: ph.timskie.dancingfountain.MainActivity 09-30 22:17:45.680: E/AndroidRuntime(934): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1883) 09-30 22:17:45.680: E/AndroidRuntime(934): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1984) 09-30 22:17:45.680: E/AndroidRuntime(934): at android.app.ActivityThread.access$600(ActivityThread.java:126) 09-30 22:17:45.680: E/AndroidRuntime(934): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1150) 09-30 22:17:45.680: E/AndroidRuntime(934): at android.os.Handler.dispatchMessage(Handler.java:99) 09-30 22:17:45.680: E/AndroidRuntime(934): at android.os.Looper.loop(Looper.java:137) 09-30 22:17:45.680: E/AndroidRuntime(934): at android.app.ActivityThread.main(ActivityThread.java:4456) 09-30 22:17:45.680: E/AndroidRuntime(934): at java.lang.reflect.Method.invokeNative(Native Method) 09-30 22:17:45.680: E/AndroidRuntime(934): at java.lang.reflect.Method.invoke(Method.java:511) 09-30 22:17:45.680: E/AndroidRuntime(934): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:787) 09-30 22:17:45.680: E/AndroidRuntime(934): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:554) 09-30 22:17:45.680: E/AndroidRuntime(934): at dalvik.system.NativeStart.main(Native Method) 09-30 22:17:45.680: E/AndroidRuntime(934): Caused by: java.lang.ClassNotFoundException: ph.timskie.dancingfountain.MainActivity 09-30 22:17:45.680: E/AndroidRuntime(934): at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:61) 09-30 22:17:45.680: E/AndroidRuntime(934): at java.lang.ClassLoader.loadClass(ClassLoader.java:501) 09-30 22:17:45.680: E/AndroidRuntime(934): at java.lang.ClassLoader.loadClass(ClassLoader.java:461) 09-30 22:17:45.680: E/AndroidRuntime(934): at android.app.Instrumentation.newActivity(Instrumentation.java:1023) 09-30 22:17:45.680: E/AndroidRuntime(934): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1874) 09-30 22:17:45.680: E/AndroidRuntime(934): ... 11 more </code></pre> <p>Androidmanifest</p> <pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt; &lt;manifest xmlns:android="http://schemas.android.com/apk/res/android" package="ph.timskie.dancingfountain" android:versionCode="1" android:versionName="1.0" &gt; &lt;uses-sdk android:minSdkVersion="8" android:targetSdkVersion="17" /&gt; &lt;application android:allowBackup="true" android:icon="@drawable/ic_launcher" android:label="@string/app_name" android:theme="@style/AppTheme" &gt; &lt;activity android:name="ph.timskie.dancingfountain.MainActivity" android:label="@string/app_name" &gt; &lt;intent-filter&gt; &lt;action android:name="android.intent.action.MAIN" /&gt; &lt;category android:name="android.intent.category.LAUNCHER" /&gt; &lt;/intent-filter&gt; &lt;/activity&gt; &lt;activity android:name=".Rock"&gt;&lt;/activity&gt; &lt;activity android:name=".Punk"&gt;&lt;/activity&gt; &lt;activity android:name=".Classical"&gt;&lt;/activity&gt; &lt;activity android:name=".OPM"&gt;&lt;/activity&gt; &lt;activity android:name=".Pop"&gt;&lt;/activity&gt; &lt;/application&gt; &lt;/manifest&gt; </code></pre>
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