puty try catch around
ImageButton o1 = (ImageButton) findViewById(R.id.next);
o1.setOnClickListener(this);
R.id.next : is it really an ImageButton?
You have got ClassCastException.
Regards
Sarwar Erfan
On Nov 8, 1:27 pm, Alok Upadhyay <maddy.luck...@gmail.com> wrote:
> i have two class as trial.java and ImageWoLab0.java(Image without
> lable 0).When i run my application i am getting error as : The
> application has stopped unexpectedly!!
>
> public void onClick(View v)
> {
> switch (v.getId())
> {
> case R.id.btnSequence:
> Intent intent1 = new Intent();
> intent1.setClass(this,ImageWoLab0.class); /*To open new
> Screen/Activity */
> /
> *Passing a key/value(Condition) to Activity2.class*/
> startActivity(intent1); /*open the new
> screen/Activity*/
> break;
>
> case R.id.btnVideo:
> Intent intent2 = new Intent();
> intent2.setClass(this,Activity2.class);
> intent2.putExtra("String_key", "value1");
> startActivity(intent2);
> break;
>
> case R.id.btnInfo:
> Intent intent3 = new Intent();
> intent3.setClass(this,Activity2.class);
>
> intent3.putExtra("String_key", "value2");
> startActivity(intent3);
> break;
> }
> othar class as:
>
> public class ImageWoLab0 extends Activity implements OnClickListener
> { private static String TAG = "tag";
>
> @Override
> public void onCreate(Bundle savedInstanceState)
> {
> Log.i(TAG, "abc");
> super.onCreate(savedInstanceState);
> setContentView(R.layout.image0);
> ImageButton o1 = (ImageButton) findViewById(R.id.next);
> o1.setOnClickListener(this);
>
> }
>
> @Override
> public void onClick(View v)
> {
> switch (v.getId())
> {
> case R.id.next:
> Intent intent1 = new Intent();
> intent1.setClass(this,ImageWoLab1.class);
> startActivity(intent1);
> break;
>
> }
>
> }
> }
>
> i have check image in drawable folder,manifest file(activity
> entry),layout file properly.i have clean again and again even rebuild
> again still the same messageis displaying.i am getting log as:sorry if
> i have not send log in right format(first time i am using logcat):
>
> 11-08 12:48:55.084: INFO/tag(334): abc
> 11-08 12:48:55.154: WARN/dalvikvm(334): threadid=1: thread exiting
> with uncaught exception (group=0x4001d800) 11-08 12:48:55.204: ERROR/
> AndroidRuntime(334): FATAL EXCEPTION: main 11-08 12:48:55.204: ERROR/
> AndroidRuntime(334): java.lang.RuntimeException: Unable to start
> activity ComponentInfo{com.example.Trial/
> com.example.Trial.ImageWoLab0}: java.lang.ClassCastException:
> android.widget.ImageView 11-08 12:48:55.204: ERROR/
> AndroidRuntime(334): at
> android.app.ActivityThread.performLaunchActivity(ActivityThread.java:
> 2663) 11-08 12:48:55.204: ERROR/AndroidRuntime(334): at
> android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:
> 2679) 11-08 12:48:55.204: ERROR/AndroidRuntime(334): at
> android.app.ActivityThread.access$2300(ActivityThread.java:125) 11-08
> 12:48:55.204: ERROR/AndroidRuntime(334): at android.app.ActivityThread
> $H.handleMessage(ActivityThread.java:2033) 11-08 12:48:55.204: ERROR/
> AndroidRuntime(334): at
> android.os.Handler.dispatchMessage(Handler.java:99) 11-08
> 12:48:55.204: ERROR/AndroidRuntime(334): at
> android.os.Looper.loop(Looper.java:123) 11-08 12:48:55.204: ERROR/
> AndroidRuntime(334): at
> android.app.ActivityThread.main(ActivityThread.java:4627) 11-08
> 12:48:55.204: ERROR/AndroidRuntime(334): at
> java.lang.reflect.Method.invokeNative(Native Method) 11-08
> 12:48:55.204: ERROR/AndroidRuntime(334): at
> java.lang.reflect.Method.invoke(Method.java:521) 11-08 12:48:55.204:
> ERROR/AndroidRuntime(334): at com.android.internal.os.ZygoteInit
> $MethodAndArgsCaller.run(ZygoteInit.java:868) 11-08 12:48:55.204:
> ERROR/AndroidRuntime(334): at
> com.android.internal.os.ZygoteInit.main(ZygoteInit.java:626) 11-08
> 12:48:55.204: ERROR/AndroidRuntime(334): at
> dalvik.system.NativeStart.main(Native Method) 11-08 12:48:55.204:
> ERROR/AndroidRuntime(334): Caused by: java.lang.ClassCastException:
> android.widget.ImageView 11-08 12:48:55.204: ERROR/
> AndroidRuntime(334): at
> com.example.Trial.ImageWoLab0.onCreate(ImageWoLab0.java:21) 11-08
> 12:48:55.204: ERROR/AndroidRuntime(334): at
> android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:
> 1047) 11-08 12:48:55.204: ERROR/AndroidRuntime(334): at
> android.app.ActivityThread.performLaunchActivity(ActivityThread.java:
> 2627) 11-08 12:48:55.204: ERROR/AndroidRuntime(334): ... 11 more 11-08
> 12:48:55.264: WARN/ActivityManager(61): Force finishing activity
> com.example.Trial/.ImageWoLab0 11-08 12:48:55.274: WARN/
> ActivityManager(61): Force finishing activity com.example.Trial/.Trial
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