Android Creating Intent Inside Dialog Custom View

I have created a dialog using a custom xml view now i have some buttons that i want to add on click listeners and launch new activity using them. But everytime i try to create an intent it crashes my application.

 Dialog dialog = new Dialog(MainActivity.this); dialog.setContentView(R.layout.activity_dialog_tips); RelativeLayout AldikoLauncher; AldikoLauncher = (RelativeLayout) findViewById(R.id.launch_aldiko_tour); AldikoLauncher.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View arg0) { // TODO Auto-generated method stub pref.setGuidedActivity("MainActivity"); Intent ShowCase1 = new Intent(MainActivity.this,ShowCaseStep1.class); ShowCase1.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP); overridePendingTransition(R.anim.fadeout, R.anim.fadein); startActivity(ShowCase1); } }); dialog.setTitle("Quick Tips"); dialog.setCancelable(true); dialog.show(); 

ERROR REPORT

 02-11 06:44:04.355: E/AndroidRuntime(2202): FATAL EXCEPTION: main 02-11 06:44:04.355: E/AndroidRuntime(2202): java.lang.NullPointerException 02-11 06:44:04.355: E/AndroidRuntime(2202): at com.utext.unext.MainActivity.InvokeTipsLauncher(MainActivity.java:91) 02-11 06:44:04.355: E/AndroidRuntime(2202): at com.utext.unext.MainActivity.onOptionsItemSelected(MainActivity.java:80) 02-11 06:44:04.355: E/AndroidRuntime(2202): at android.app.Activity.onMenuItemSelected(Activity.java:2548) 02-11 06:44:04.355: E/AndroidRuntime(2202): at com.android.internal.policy.impl.PhoneWindow.onMenuItemSelected(PhoneWindow.java:980) 02-11 06:44:04.355: E/AndroidRuntime(2202): at com.android.internal.view.menu.MenuBuilder.dispatchMenuItemSelected(MenuBuilder.java:735) 02-11 06:44:04.355: E/AndroidRuntime(2202): at com.android.internal.view.menu.MenuItemImpl.invoke(MenuItemImpl.java:149) 02-11 06:44:04.355: E/AndroidRuntime(2202): at com.android.internal.view.menu.MenuBuilder.performItemAction(MenuBuilder.java:874) 02-11 06:44:04.355: E/AndroidRuntime(2202): at com.android.internal.view.menu.ActionMenuView.invokeItem(ActionMenuView.java:547) 02-11 06:44:04.355: E/AndroidRuntime(2202): at com.android.internal.view.menu.ActionMenuItemView.onClick(ActionMenuItemView.java:115) 02-11 06:44:04.355: E/AndroidRuntime(2202): at android.view.View.performClick(View.java:4202) 02-11 06:44:04.355: E/AndroidRuntime(2202): at android.view.View$PerformClick.run(View.java:17340) 02-11 06:44:04.355: E/AndroidRuntime(2202): at android.os.Handler.handleCallback(Handler.java:725) 02-11 06:44:04.355: E/AndroidRuntime(2202): at android.os.Handler.dispatchMessage(Handler.java:92) 02-11 06:44:04.355: E/AndroidRuntime(2202): at android.os.Looper.loop(Looper.java:137) 02-11 06:44:04.355: E/AndroidRuntime(2202): at android.app.ActivityThread.main(ActivityThread.java:5039) 02-11 06:44:04.355: E/AndroidRuntime(2202): at java.lang.reflect.Method.invokeNative(Native Method) 02-11 06:44:04.355: E/AndroidRuntime(2202): at java.lang.reflect.Method.invoke(Method.java:511) 02-11 06:44:04.355: E/AndroidRuntime(2202): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:793) 02-11 06:44:04.355: E/AndroidRuntime(2202): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:560) 02-11 06:44:04.355: E/AndroidRuntime(2202): at dalvik.system.NativeStart.main(Native Method)