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POCan't move from Activity to TabActivity
 

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  1. POCan't move from Activity to TabActivity
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    <p>I can't move from the <code>mainactivity.class</code> to <code>main.class</code>. When I click on the imageview it crashes and shows me unfortunately that the app has stopped.</p> <p>This is the Main Activity which works fine:</p> <pre><code>package com.example.eateqadat; import android.app.Activity; import android.content.Intent; import android.os.Bundle; import android.view.View; import android.view.View.OnClickListener; import android.widget.ImageView; public class MainActivity extends Activity { @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); ImageView i = (ImageView)findViewById(R.id.imageView1); i.setOnClickListener(new OnClickListener() { public void onClick(View v) { Intent explicitIntent = new Intent(MainActivity.this,main.class); startActivity(explicitIntent); } }); } } </code></pre> <p>This is the main class. I don't know what is wrong but it keeps crashing:</p> <pre><code>package com.example.eateqadat; import android.app.TabActivity; import android.content.Intent; import android.os.Bundle; import android.widget.TabHost; import android.widget.TabHost.TabSpec; public class main extends TabActivity { public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); TabHost tabHost = getTabHost(); // Android tab Intent intentabout = new Intent().setClass(main.this, about.class); TabSpec tabSpecabout = tabHost .newTabSpec("Úä ÇáÈÑäÇãÌ") .setContent(intentabout); tabHost.addTab(tabSpecabout); tabHost.setCurrentTab(1); } } </code></pre> <p>this is the logcat</p> <pre><code>01-21 17:43:23.506: E/Trace(1203): error opening trace file: No such file or directory (2) 01-21 17:43:24.117: D/dalvikvm(1203): GC_FOR_ALLOC freed 32K, 3% free 10769K/11075K, paused 42ms, total 43ms 01-21 17:43:24.126: I/dalvikvm-heap(1203): Grow heap (frag case) to 10.968MB for 376016-byte allocation 01-21 17:43:24.186: D/dalvikvm(1203): GC_FOR_ALLOC freed &lt;1K, 3% free 11136K/11463K, paused 30ms, total 30ms 01-21 17:43:24.226: D/dalvikvm(1203): GC_FOR_ALLOC freed 0K, 3% free 11136K/11463K, paused 37ms, total 37ms 01-21 17:43:24.236: I/dalvikvm-heap(1203): Grow heap (frag case) to 11.604MB for 667348-byte allocation 01-21 17:43:24.316: D/dalvikvm(1203): GC_CONCURRENT freed 0K, 4% free 11787K/12167K, paused 18ms+3ms, total 77ms 01-21 17:43:24.316: D/dalvikvm(1203): WAIT_FOR_CONCURRENT_GC blocked 6ms 01-21 17:43:24.576: D/gralloc_goldfish(1203): Emulator without GPU emulation detected. 01-21 17:43:26.936: D/AndroidRuntime(1203): Shutting down VM 01-21 17:43:26.936: W/dalvikvm(1203): threadid=1: thread exiting with uncaught exception (group=0x2bc9a300) 01-21 17:43:26.956: E/AndroidRuntime(1203): FATAL EXCEPTION: main 01-21 17:43:26.956: E/AndroidRuntime(1203): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.eateqadat/com.example.eateqadat.main}: java.lang.IllegalArgumentException: you must specify a way to create the tab indicator. 01-21 17:43:26.956: E/AndroidRuntime(1203): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2059) 01-21 17:43:26.956: E/AndroidRuntime(1203): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2084) 01-21 17:43:26.956: E/AndroidRuntime(1203): at android.app.ActivityThread.access$600(ActivityThread.java:130) 01-21 17:43:26.956: E/AndroidRuntime(1203): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1195) 01-21 17:43:26.956: E/AndroidRuntime(1203): at android.os.Handler.dispatchMessage(Handler.java:99) 01-21 17:43:26.956: E/AndroidRuntime(1203): at android.os.Looper.loop(Looper.java:137) 01-21 17:43:26.956: E/AndroidRuntime(1203): at android.app.ActivityThread.main(ActivityThread.java:4745) 01-21 17:43:26.956: E/AndroidRuntime(1203): at java.lang.reflect.Method.invokeNative(Native Method) 01-21 17:43:26.956: E/AndroidRuntime(1203): at java.lang.reflect.Method.invoke(Method.java:511) 01-21 17:43:26.956: E/AndroidRuntime(1203): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:786) 01-21 17:43:26.956: E/AndroidRuntime(1203): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553) 01-21 17:43:26.956: E/AndroidRuntime(1203): at dalvik.system.NativeStart.main(Native Method) 01-21 17:43:26.956: E/AndroidRuntime(1203): Caused by: java.lang.IllegalArgumentException: you must specify a way to create the tab indicator. 01-21 17:43:26.956: E/AndroidRuntime(1203): at android.widget.TabHost.addTab(TabHost.java:217) 01-21 17:43:26.956: E/AndroidRuntime(1203): at com.example.eateqadat.main.onCreate(main.java:21) 01-21 17:43:26.956: E/AndroidRuntime(1203): at android.app.Activity.performCreate(Activity.java:5008) 01-21 17:43:26.956: E/AndroidRuntime(1203): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1079) 01-21 17:43:26.956: E/AndroidRuntime(1203): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2023) 01-21 17:43:26.956: E/AndroidRuntime(1203): ... 11 more 01-21 17:43:29.846: I/Process(1203): Sending signal. PID: 1203 SIG: 9 </code></pre>
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    1. COClass names should **always** have Each Word Capitalized.
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    2. COPost the contents of main.xml.
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    3. COWhat does the log show?
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