You have not modified your manifest to say you are using your custom Application class.
http://developer.android.com/guide/topics/manifest/application-element.html#nm You also have an erroneous <activity> element, claiming that MyApp is an activity, when it is not. On Sat, Apr 16, 2011 at 10:16 AM, ArcDroid <[email protected]> wrote: > Hello all, > I have tried everything and can't get past this issue. Here is a my > error and the simple code example.... > > > Using Android 2.2.. > > java.lang.RuntimeException: Unable to start activity > ComponentInfo{com.arcdroid.Vars/com.arcdroid.Vars.HelloApplication}: > java.lang.ClassCastException: android.app.Application > E/AndroidRuntime( 2231): at > android.app.ActivityThread.performLaunchActivity(ActivityThread.java: > 1647) > E/AndroidRuntime( 2231): at > android.app.ActivityThread.handleLaunchActivity(ActivityThread.java: > 1663) > E/AndroidRuntime( 2231): at android.app.ActivityThread.access > $1500(ActivityThread.java:117) > E/AndroidRuntime( 2231): at android.app.ActivityThread > $H.handleMessage(ActivityThread.java:931) > E/AndroidRuntime( 2231): at > android.os.Handler.dispatchMessage(Handler.java:99) > E/AndroidRuntime( 2231): at android.os.Looper.loop(Looper.java:123) > E/AndroidRuntime( 2231): at > android.app.ActivityThread.main(ActivityThread.java:3683) > E/AndroidRuntime( 2231): at > java.lang.reflect.Method.invokeNative(Native Method) > E/AndroidRuntime( 2231): at > java.lang.reflect.Method.invoke(Method.java:507) > E/AndroidRuntime( 2231): at com.android.internal.os.ZygoteInit > $MethodAndArgsCaller.run(ZygoteInit.java:839) > E/AndroidRuntime( 2231): at > com.android.internal.os.ZygoteInit.main(ZygoteInit.java:597) > E/AndroidRuntime( 2231): at dalvik.system.NativeStart.main(Native > Method) > E/AndroidRuntime( 2231): Caused by: java.lang.ClassCastException: > android.app.Application > E/AndroidRuntime( 2231): at > com.arcdroid.Vars.HelloApplication.onCreate(HelloApplication.java:13) > E/AndroidRuntime( 2231): at > android.app.Instrumentation.callActivityOnCreate(Instrumentation.java: > 1047) > E/AndroidRuntime( 2231): at > android.app.ActivityThread.performLaunchActivity(ActivityThread.java: > 1611) > > > > package com.arcdroid.Vars; > > import android.app.Application; > > public class MyApp extends Application { > > public MyApp() { > // TODO Auto-generated constructor stub > } > > private String myState; > > public String getState(){ > return myState; > } > public void setState(String s){ > myState = s; > } > > } > > > > > > > package com.arcdroid.Vars; > > import android.app.Activity; > import android.app.Application; > import android.os.Bundle; > > public class HelloApplication extends Activity { > /** Called when the activity is first created. */ > @Override > public void onCreate(Bundle savedInstanceState) { > super.onCreate(savedInstanceState); > setContentView(R.layout.main); > MyApp appState = ((MyApp)getApplicationContext()); > // String state = appState.getState(); > > } > } > > > <?xml version="1.0" encoding="utf-8"?> > <manifest xmlns:android="http://schemas.android.com/apk/res/android"; > package="com.arcdroid.Vars" > android:versionCode="1" > android:versionName="1.0"> > > > <application android:icon="@drawable/icon" android:label="@string/ > app_name"> > <activity android:name=".HelloApplication" > android:label="@string/app_name"> > <intent-filter> > <action android:name="android.intent.action.MAIN" /> > <category > android:name="android.intent.category.LAUNCHER" /> > </intent-filter> > </activity> > > <activity android:name=".MyApp" /> > > </application> > > > </manifest> > > > > > Thanks in advance... > http://www.arcdroid.com > > -- > You received this message because you are subscribed to the Google > Groups "Android Developers" group. > To post to this group, send email to [email protected] > To unsubscribe from this group, send email to > [email protected] > For more options, visit this group at > http://groups.google.com/group/android-developers?hl=en > -- Mark Murphy (a Commons Guy) http://commonsware.com | http://github.com/commonsguy http://commonsware.com/blog | http://twitter.com/commonsguy Warescription: Three Android Books, Plus Updates, One Low Price! -- You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
