Trying to develop hello world, but getting force close error on emulator. thanks in advance
07-25 12:04:12.308: D/AndroidRuntime(277): Shutting down VM
07-25 12:04:12.308: W/dalvikvm(277): threadid=1: thread exiting with uncaught exception (group=0x4001d800)
07-25 12:04:12.368: E/AndroidRuntime(277): FATAL EXCEPTION: main
07-25 12:04:12.368: E/AndroidRuntime(277): java.lang.RuntimeException: Unable to instantiate activity ComponentInfo{com.exampe.helloww/com.exampe.helloww.HelloActivity}: java.lang.ClassNotFoundException: com.exampe.helloww.HelloActivity in loader dalvik.system.PathClassLoader[/data/app/com.exampe.helloww-2.apk]
07-25 12:04:12.368: E/AndroidRuntime(277): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2585)
07-25 12:04:12.368: E/AndroidRuntime(277): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2679)
07-25 12:04:12.368: E/AndroidRuntime(277): at android.app.ActivityThread.access$2300(ActivityThread.java:125)
07-25 12:04:12.368: E/AndroidRuntime(277): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2033)
07-25 12:04:12.368: E/AndroidRuntime(277): at android.os.Handler.dispatchMessage(Handler.java:99)
07-25 12:04:12.368: E/AndroidRuntime(277): at android.os.Looper.loop(Looper.java:123)
07-25 12:04:12.368: E/AndroidRuntime(277): at android.app.ActivityThread.main(ActivityThread.java:4627)
07-25 12:04:12.368: E/AndroidRuntime(277): at java.lang.reflect.Method.invokeNative(Native Method)
07-25 12:04:12.368: E/AndroidRuntime(277): at java.lang.reflect.Method.invoke(Method.java:521)
07-25 12:04:12.368: E/AndroidRuntime(277): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:868)
07-25 12:04:12.368: E/AndroidRuntime(277): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:626)
07-25 12:04:12.368: E/AndroidRuntime(277): at dalvik.system.NativeStart.main(Native Method)
07-25 12:04:12.368: E/AndroidRuntime(277): Caused by: java.lang.ClassNotFoundException: com.exampe.helloww.HelloActivity in loader dalvik.system.PathClassLoader[/data/app/com.exampe.helloww-2.apk]
07-25 12:04:12.368: E/AndroidRuntime(277): at dalvik.system.PathClassLoader.findClass(PathClassLoader.java:243)
07-25 12:04:12.368: E/AndroidRuntime(277): at java.lang.ClassLoader.loadClass(ClassLoader.java:573)
07-25 12:04:12.368: E/AndroidRuntime(277): at java.lang.ClassLoader.loadClass(ClassLoader.java:532)
07-25 12:04:12.368: E/AndroidRuntime(277): at android.app.Instrumentation.newActivity(Instrumentation.java:1021)
07-25 12:04:12.368: E/AndroidRuntime(277): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2577)
07-25 12:04:12.368: E/AndroidRuntime(277): ... 11 more
07-25 12:04:17.158: I/Process(277): Sending signal. PID: 277 SIG: 9
the ClassNotFoundException is usually caused when you try to run your app on lower sdk version than the target sdk
Add your HelloActivity in Manifest file.Due to this your Activity is not found and you are getting ClassNotFoundException as
E/AndroidRuntime(277): Caused by: java.lang.ClassNotFoundException: com.exampe.helloww.HelloActivity
Related
I'm trying to integrate Facebook SDK in my android app. I downloaded facebook-android-sdk-4.5.1 and followed the steps in the developer guide. As I'm trying to run the sample HelloFacebookSample placed in the samples folder of the SDK, I'm getting the following error:
08-31 18:37:19.399: E/AndroidRuntime(277): FATAL EXCEPTION: main
08-31 18:37:19.399: E/AndroidRuntime(277): java.lang.NoSuchFieldError: java.util.Locale.ROOT
08-31 18:37:19.399: E/AndroidRuntime(277): at com.facebook.FacebookSdk.loadDefaultsFromMetadata(FacebookSdk.java:623)
08-31 18:37:19.399: E/AndroidRuntime(277): at com.facebook.FacebookSdk.sdkInitialize(FacebookSdk.java:203)
08-31 18:37:19.399: E/AndroidRuntime(277): at com.facebook.FacebookSdk.sdkInitialize(FacebookSdk.java:173)
08-31 18:37:19.399: E/AndroidRuntime(277): at com.example.image.HelloFacebookSampleActivity.onCreate(HelloFacebookSampleActivity.java:117)
08-31 18:37:19.399: E/AndroidRuntime(277): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1047)
08-31 18:37:19.399: E/AndroidRuntime(277): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2627)
08-31 18:37:19.399: E/AndroidRuntime(277): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2679)
08-31 18:37:19.399: E/AndroidRuntime(277): at android.app.ActivityThread.access$2300(ActivityThread.java:125)
08-31 18:37:19.399: E/AndroidRuntime(277): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2033)
08-31 18:37:19.399: E/AndroidRuntime(277): at android.os.Handler.dispatchMessage(Handler.java:99)
08-31 18:37:19.399: E/AndroidRuntime(277): at android.os.Looper.loop(Looper.java:123)
08-31 18:37:19.399: E/AndroidRuntime(277): at android.app.ActivityThread.main(ActivityThread.java:4627)
08-31 18:37:19.399: E/AndroidRuntime(277): at java.lang.reflect.Method.invokeNative(Native Method)
08-31 18:37:19.399: E/AndroidRuntime(277): at java.lang.reflect.Method.invoke(Method.java:521)
08-31 18:37:19.399: E/AndroidRuntime(277): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:868)
08-31 18:37:19.399: E/AndroidRuntime(277): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:626)
08-31 18:37:19.399: E/AndroidRuntime(277): at dalvik.system.NativeStart.main(Native Method)
I'm trying Android 2.2. Is this an issue? Or anything I missed? Can someone guide me please.
The Facebook SDK requires a minimum Android API version 15 (Android 4.0.3, or ICE CREAM SANDWICH).
https://developers.facebook.com/docs/android
I'm trying Android 2.2. Is this an issue?
Yes, since FB 4.5.1 SDK required API 9 to run (that is Android 2.3). You can check it here: https://web.archive.org/web/20150821025823/https://developers.facebook.com/docs/android
Requires Android API 9.
It can't be run on previous Android versions since it uses new API methods/fields (in your case exception is caused by accessing the Locale.ROOT constant which was added only in API 9).
Starting from version 4.6.0 FB SDK started to require API 15:
https://developers.facebook.com/docs/android/upgrading-4.x
i have implemented the simple listview and i get the error as
03-28 11:24:58.148: E/ArrayAdapter(275): You must supply a resource ID for a TextView
03-28 11:24:58.156: D/AndroidRuntime(275): Shutting down VM
03-28 11:24:58.156: W/dalvikvm(275): threadid=1: thread exiting with uncaught exception (group=0x4001d800)
03-28 11:24:58.249: E/AndroidRuntime(275): FATAL EXCEPTION: main
03-28 11:24:58.249: E/AndroidRuntime(275): java.lang.IllegalStateException: ArrayAdapter requires the resource ID to be a TextView
03-28 11:24:58.249: E/AndroidRuntime(275): at android.widget.ArrayAdapter.createViewFromResource(ArrayAdapter.java:347)
03-28 11:24:58.249: E/AndroidRuntime(275): at android.widget.ArrayAdapter.getView(ArrayAdapter.java:323)
03-28 11:24:58.249: E/AndroidRuntime(275): at android.widget.AbsListView.obtainView(AbsListView.java:1315)
03-28 11:24:58.249: E/AndroidRuntime(275): at android.widget.ListView.measureHeightOfChildren(ListView.java:1198)
03-28 11:24:58.249: E/AndroidRuntime(275): at android.widget.ListView.onMeasure(ListView.java:1109)
03-28 11:24:58.249: E/AndroidRuntime(275): at android.view.View.measure(View.java:8171)
03-28 11:24:58.249: E/AndroidRuntime(275): at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:3132)
03-28 11:24:58.249: E/AndroidRuntime(275): at android.widget.LinearLayout.measureChildBeforeLayout(LinearLayout.java:1012)
03-28 11:24:58.249: E/AndroidRuntime(275): at android.widget.LinearLayout.measureVertical(LinearLayout.java:381)
03-28 11:24:58.249: E/AndroidRuntime(275): at android.widget.LinearLayout.onMeasure(LinearLayout.java:304)
03-28 11:24:58.249: E/AndroidRuntime(275): at android.view.View.measure(View.java:8171)
03-28 11:24:58.249: E/AndroidRuntime(275): at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:3132)
03-28 11:24:58.249: E/AndroidRuntime(275): at android.widget.FrameLayout.onMeasure(FrameLayout.java:245)
03-28 11:24:58.249: E/AndroidRuntime(275): at android.view.View.measure(View.java:8171)
03-28 11:24:58.249: E/AndroidRuntime(275): at android.widget.LinearLayout.measureVertical(LinearLayout.java:526)
03-28 11:24:58.249: E/AndroidRuntime(275): at android.widget.LinearLayout.onMeasure(LinearLayout.java:304)
03-28 11:24:58.249: E/AndroidRuntime(275): at android.view.View.measure(View.java:8171)
03-28 11:24:58.249: E/AndroidRuntime(275): at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:3132)
03-28 11:24:58.249: E/AndroidRuntime(275): at android.widget.FrameLayout.onMeasure(FrameLayout.java:245)
03-28 11:24:58.249: E/AndroidRuntime(275): at android.view.View.measure(View.java:8171)
03-28 11:24:58.249: E/AndroidRuntime(275): at android.view.ViewRoot.performTraversals(ViewRoot.java:801)
03-28 11:24:58.249: E/AndroidRuntime(275): at android.view.ViewRoot.handleMessage(ViewRoot.java:1727)
03-28 11:24:58.249: E/AndroidRuntime(275): at android.os.Handler.dispatchMessage(Handler.java:99)
03-28 11:24:58.249: E/AndroidRuntime(275): at android.os.Looper.loop(Looper.java:123)
03-28 11:24:58.249: E/AndroidRuntime(275): at android.app.ActivityThread.main(ActivityThread.java:4627)
03-28 11:24:58.249: E/AndroidRuntime(275): at java.lang.reflect.Method.invokeNative(Native Method)
03-28 11:24:58.249: E/AndroidRuntime(275): at java.lang.reflect.Method.invoke(Method.java:521)
03-28 11:24:58.249: E/AndroidRuntime(275): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:868)
03-28 11:24:58.249: E/AndroidRuntime(275): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:626)
03-28 11:24:58.249: E/AndroidRuntime(275): at dalvik.system.NativeStart.main(Native Method)
03-28 11:24:58.249: E/AndroidRuntime(275): Caused by: java.lang.ClassCastException: android.widget.RelativeLayout
03-28 11:24:58.249: E/AndroidRuntime(275): at android.widget.ArrayAdapter.createViewFromResource(ArrayAdapter.java:340)
03-28 11:24:58.249: E/AndroidRuntime(275): ... 29 more
03-28 11:24:58.249: E/AndroidRuntime(275): Caused by: java.lang.ClassCastException: android.widget.RelativeLayout
03-28 11:24:58.249: E/AndroidRuntime(275): at android.widget.ArrayAdapter.createViewFromResource(ArrayAdapter.java:340)
03-28 11:24:58.249: E/AndroidRuntime(275): ... 29 more
03-28 11:27:32.329: I/Process(275): Sending signal. PID: 275 SIG: 9
Seems you try to pass a RelativeLayout to your ArrayAdapter, where it expects a TextView. At least this is, what the exceptions say.
i'm getting this message when i run my application i don't know why i'm getting it could any one help me. here is the logcat.
java.lang.VerifyError: com.kosh.me.Smaller
at java.lang.Class.newInstanceImpl(Native Method)
at java.lang.Class.newInstance(Class.java:1429)
at android.app.Instrumentation.newActivity(Instrumentation.java:1021)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2577)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2679)
at android.app.ActivityThread.access$2300(ActivityThread.java:125)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2033)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:123)
at android.app.ActivityThread.main(ActivityThread.java:4627)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:521)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:876)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:634)
at dalvik.system.NativeStart.main(Native Method)
This happens when the build library classes conflict with those at run-time. Try performing a Clean of your project followed by a build.
When I run my android application it gives an error "The application has stopped working,please try again". Please help me to solve this problem. i have created a method which gets called when the button gets clicked. When I include the code for calling another class in this method it shows the above error & when I remove that code it neither shows the error nor goes ahead when listview etc. gets clicked. Can you please check my code and help me please.
CODE:
public void myClickHandler(View view)
{
//Toast.makeText(this, "yesss",Toast.LENGTH_LONG).show();
setContentView(R.layout.screen1);
ListAdapter adapter = new ArrayAdapter<String>(this, android.R.layout.simple_list_item_1, city);
ListView FirstProjectActivity = (ListView) findViewById(R.id.mylist1);
FirstProjectActivity.setAdapter(adapter);
Intent myIntent = new Intent(FirstProjectActivity.this,
City.class);
FirstProjectActivity.this.startActivity(myIntent);
//startActivity(new Intent(FirstProjectActivity.this, City.class));
}
LOGCAT is as follows:
03-02 18:56:28.136: D/AndroidRuntime(316): Shutting down VM
03-02 18:56:28.136: W/dalvikvm(316): threadid=1: thread exiting with uncaught exception (group=0x4001d800)
03-02 18:56:28.226: E/AndroidRuntime(316): FATAL EXCEPTION: main
03-02 18:56:28.226: E/AndroidRuntime(316): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.FirstProject/com.example.FirstProject.FirstProjectActivity}: java.lang.NullPointerException
03-02 18:56:28.226: E/AndroidRuntime(316): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2663)
03-02 18:56:28.226: E/AndroidRuntime(316): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2679)
03-02 18:56:28.226: E/AndroidRuntime(316): at android.app.ActivityThread.access$2300(ActivityThread.java:125)
03-02 18:56:28.226: E/AndroidRuntime(316): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2033)
03-02 18:56:28.226: E/AndroidRuntime(316): at android.os.Handler.dispatchMessage(Handler.java:99)
03-02 18:56:28.226: E/AndroidRuntime(316): at android.os.Looper.loop(Looper.java:123)
03-02 18:56:28.226: E/AndroidRuntime(316): at android.app.ActivityThread.main(ActivityThread.java:4627)
03-02 18:56:28.226: E/AndroidRuntime(316): at java.lang.reflect.Method.invokeNative(Native Method)
03-02 18:56:28.226: E/AndroidRuntime(316): at java.lang.reflect.Method.invoke(Method.java:521)
03-02 18:56:28.226: E/AndroidRuntime(316): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:868)
03-02 18:56:28.226: E/AndroidRuntime(316): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:626)
03-02 18:56:28.226: E/AndroidRuntime(316): at dalvik.system.NativeStart.main(Native Method)
03-02 18:56:28.226: E/AndroidRuntime(316): Caused by: java.lang.NullPointerException
03-02 18:56:28.226: E/AndroidRuntime(316): at com.example.FirstProject.FirstProjectActivity.onCreate(FirstProjectActivity.java:37)
03-02 18:56:28.226: E/AndroidRuntime(316): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1047)
03-02 18:56:28.226: E/AndroidRuntime(316): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2627)
03-02 18:56:28.226: E/AndroidRuntime(316): ... 11 more
03-02 18:56:35.396: I/Process(316): Sending signal. PID: 316 SIG: 9
03-02 19:02:51.836: D/AndroidRuntime(351): Shutting down VM
03-02 19:02:51.836: W/dalvikvm(351): threadid=1: thread exiting with uncaught exception (group=0x4001d800)
03-02 19:02:51.866: E/AndroidRuntime(351): FATAL EXCEPTION: main
03-02 19:02:51.866: E/AndroidRuntime(351): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.FirstProject/com.example.FirstProject.FirstProjectActivity}: java.lang.NullPointerException
03-02 19:02:51.866: E/AndroidRuntime(351): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2663)
03-02 19:02:51.866: E/AndroidRuntime(351): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2679)
03-02 19:02:51.866: E/AndroidRuntime(351): at android.app.ActivityThread.access$2300(ActivityThread.java:125)
03-02 19:02:51.866: E/AndroidRuntime(351): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2033)
03-02 19:02:51.866: E/AndroidRuntime(351): at android.os.Handler.dispatchMessage(Handler.java:99)
03-02 19:02:51.866: E/AndroidRuntime(351): at android.os.Looper.loop(Looper.java:123)
03-02 19:02:51.866: E/AndroidRuntime(351): at android.app.ActivityThread.main(ActivityThread.java:4627)
03-02 19:02:51.866: E/AndroidRuntime(351): at java.lang.reflect.Method.invokeNative(Native Method)
03-02 19:02:51.866: E/AndroidRuntime(351): at java.lang.reflect.Method.invoke(Method.java:521)
03-02 19:02:51.866: E/AndroidRuntime(351): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:868)
03-02 19:02:51.866: E/AndroidRuntime(351): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:626)
03-02 19:02:51.866: E/AndroidRuntime(351): at dalvik.system.NativeStart.main(Native Method)
03-02 19:02:51.866: E/AndroidRuntime(351): Caused by: java.lang.NullPointerException
03-02 19:02:51.866: E/AndroidRuntime(351): at com.example.FirstProject.FirstProjectActivity.onCreate(FirstProjectActivity.java:37)
03-02 19:02:51.866: E/AndroidRuntime(351): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1047)
03-02 19:02:51.866: E/AndroidRuntime(351): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2627)
03-02 19:02:51.866: E/AndroidRuntime(351): ... 11 more
03-02 19:03:03.647: I/Process(351): Sending signal. PID: 351 SIG: 9
03-02 20:11:17.722: W/KeyCharacterMap(379): No keyboard for id 0
03-02 20:11:17.926: W/KeyCharacterMap(379): Using default keymap: /system/usr/keychars/qwerty.kcm.bin
03-02 20:11:28.441: D/dalvikvm(379): GC_EXPLICIT freed 3121 objects / 172672 bytes in 1696ms
03-03 01:03:02.696: W/KeyCharacterMap(406): No keyboard for id 0
03-03 01:03:02.696: W/KeyCharacterMap(406): Using default keymap: /system/usr/keychars/qwerty.kcm.bin
03-03 01:03:08.566: D/dalvikvm(406): GC_EXPLICIT freed 2874 objects / 162408 bytes in 192ms
03-03 01:33:06.566: D/AndroidRuntime(432): Shutting down VM
03-03 01:33:06.566: W/dalvikvm(432): threadid=1: thread exiting with uncaught exception (group=0x4001d800)
03-03 01:33:06.726: E/AndroidRuntime(432): FATAL EXCEPTION: main
03-03 01:33:06.726: E/AndroidRuntime(432): java.lang.IllegalStateException: Could not execute method of the activity
03-03 01:33:06.726: E/AndroidRuntime(432): at android.view.View$1.onClick(View.java:2072)
03-03 01:33:06.726: E/AndroidRuntime(432): at android.view.View.performClick(View.java:2408)
03-03 01:33:06.726: E/AndroidRuntime(432): at android.view.View$PerformClick.run(View.java:8816)
03-03 01:33:06.726: E/AndroidRuntime(432): at android.os.Handler.handleCallback(Handler.java:587)
03-03 01:33:06.726: E/AndroidRuntime(432): at android.os.Handler.dispatchMessage(Handler.java:92)
03-03 01:33:06.726: E/AndroidRuntime(432): at android.os.Looper.loop(Looper.java:123)
03-03 01:33:06.726: E/AndroidRuntime(432): at android.app.ActivityThread.main(ActivityThread.java:4627)
03-03 01:33:06.726: E/AndroidRuntime(432): at java.lang.reflect.Method.invokeNative(Native Method)
03-03 01:33:06.726: E/AndroidRuntime(432): at java.lang.reflect.Method.invoke(Method.java:521)
03-03 01:33:06.726: E/AndroidRuntime(432): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:868)
03-03 01:33:06.726: E/AndroidRuntime(432): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:626)
03-03 01:33:06.726: E/AndroidRuntime(432): at dalvik.system.NativeStart.main(Native Method)
03-03 01:33:06.726: E/AndroidRuntime(432): Caused by: java.lang.reflect.InvocationTargetException
03-03 01:33:06.726: E/AndroidRuntime(432): at com.example.FirstProject.FirstProjectActivity.myClickHandler(FirstProjectActivity.java:69)
03-03 01:33:06.726: E/AndroidRuntime(432): at java.lang.reflect.Method.invokeNative(Native Method)
03-03 01:33:06.726: E/AndroidRuntime(432): at java.lang.reflect.Method.invoke(Method.java:521)
03-03 01:33:06.726: E/AndroidRuntime(432): at android.view.View$1.onClick(View.java:2067)
03-03 01:33:06.726: E/AndroidRuntime(432): ... 11 more
03-03 01:33:06.726: E/AndroidRuntime(432): Caused by: android.content.ActivityNotFoundException: Unable to find explicit activity class {com.example.FirstProject/com.example.FirstProject.City}; have you declared this activity in your AndroidManifest.xml?
03-03 01:33:06.726: E/AndroidRuntime(432): at android.app.Instrumentation.checkStartActivityResult(Instrumentation.java:1404)
03-03 01:33:06.726: E/AndroidRuntime(432): at android.app.Instrumentation.execStartActivity(Instrumentation.java:1378)
03-03 01:33:06.726: E/AndroidRuntime(432): at android.app.Activity.startActivityForResult(Activity.java:2817)
03-03 01:33:06.726: E/AndroidRuntime(432): at android.app.Activity.startActivity(Activity.java:2923)
03-03 01:33:06.726: E/AndroidRuntime(432): ... 15 more
03-03 01:33:08.956: I/Process(432): Sending signal. PID: 432 SIG: 9
03-03 01:34:05.387: D/AndroidRuntime(460): Shutting down VM
03-03 01:34:05.387: W/dalvikvm(460): threadid=1: thread exiting with uncaught exception (group=0x4001d800)
03-03 01:34:05.417: E/AndroidRuntime(460): FATAL EXCEPTION: main
03-03 01:34:05.417: E/AndroidRuntime(460): java.lang.IllegalStateException: Could not execute method of the activity
03-03 01:34:05.417: E/AndroidRuntime(460): at android.view.View$1.onClick(View.java:2072)
03-03 01:34:05.417: E/AndroidRuntime(460): at android.view.View.performClick(View.java:2408)
03-03 01:34:05.417: E/AndroidRuntime(460): at android.view.View$PerformClick.run(View.java:8816)
03-03 01:34:05.417: E/AndroidRuntime(460): at android.os.Handler.handleCallback(Handler.java:587)
03-03 01:34:05.417: E/AndroidRuntime(460): at android.os.Handler.dispatchMessage(Handler.java:92)
03-03 01:34:05.417: E/AndroidRuntime(460): at android.os.Looper.loop(Looper.java:123)
03-03 01:34:05.417: E/AndroidRuntime(460): at android.app.ActivityThread.main(ActivityThread.java:4627)
03-03 01:34:05.417: E/AndroidRuntime(460): at java.lang.reflect.Method.invokeNative(Native Method)
03-03 01:34:05.417: E/AndroidRuntime(460): at java.lang.reflect.Method.invoke(Method.java:521)
03-03 01:34:05.417: E/AndroidRuntime(460): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:868)
03-03 01:34:05.417: E/AndroidRuntime(460): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:626)
03-03 01:34:05.417: E/AndroidRuntime(460): at dalvik.system.NativeStart.main(Native Method)
03-03 01:34:05.417: E/AndroidRuntime(460): Caused by: java.lang.reflect.InvocationTargetException
03-03 01:34:05.417: E/AndroidRuntime(460): at com.example.FirstProject.FirstProjectActivity.myClickHandler(FirstProjectActivity.java:70)
03-03 01:34:05.417: E/AndroidRuntime(460): at java.lang.reflect.Method.invokeNative(Native Method)
03-03 01:34:05.417: E/AndroidRuntime(460): at java.lang.reflect.Method.invoke(Method.java:521)
03-03 01:34:05.417: E/AndroidRuntime(460): at android.view.View$1.onClick(View.java:2067)
03-03 01:34:05.417: E/AndroidRuntime(460): ... 11 more
03-03 01:34:05.417: E/AndroidRuntime(460): Caused by: android.content.ActivityNotFoundException: Unable to find explicit activity class {com.example.FirstProject/com.example.FirstProject.City}; have you declared this activity in your AndroidManifest.xml?
03-03 01:34:05.417: E/AndroidRuntime(460): at android.app.Instrumentation.checkStartActivityResult(Instrumentation.java:1404)
03-03 01:34:05.417: E/AndroidRuntime(460): at android.app.Instrumentation.execStartActivity(Instrumentation.java:1378)
03-03 01:34:05.417: E/AndroidRuntime(460): at android.app.Activity.startActivityForResult(Activity.java:2817)
03-03 01:34:05.417: E/AndroidRuntime(460): at android.app.Activity.startActivity(Activity.java:2923)
03-03 01:34:05.417: E/AndroidRuntime(460): ... 15 more
03-03 01:34:11.016: I/Process(460): Sending signal. PID: 460 SIG: 9
03-03 01:35:33.547: D/AndroidRuntime(490): Shutting down VM
03-03 01:35:33.557: W/dalvikvm(490): threadid=1: thread exiting with uncaught exception (group=0x4001d800)
03-03 01:35:33.577: E/AndroidRuntime(490): FATAL EXCEPTION: main
03-03 01:35:33.577: E/AndroidRuntime(490): java.lang.IllegalStateException: Could not execute method of the activity
03-03 01:35:33.577: E/AndroidRuntime(490): at android.view.View$1.onClick(View.java:2072)
03-03 01:35:33.577: E/AndroidRuntime(490): at android.view.View.performClick(View.java:2408)
03-03 01:35:33.577: E/AndroidRuntime(490): at android.view.View$PerformClick.run(View.java:8816)
03-03 01:35:33.577: E/AndroidRuntime(490): at android.os.Handler.handleCallback(Handler.java:587)
03-03 01:35:33.577: E/AndroidRuntime(490): at android.os.Handler.dispatchMessage(Handler.java:92)
03-03 01:35:33.577: E/AndroidRuntime(490): at android.os.Looper.loop(Looper.java:123)
03-03 01:35:33.577: E/AndroidRuntime(490): at android.app.ActivityThread.main(ActivityThread.java:4627)
03-03 01:35:33.577: E/AndroidRuntime(490): at java.lang.reflect.Method.invokeNative(Native Method)
03-03 01:35:33.577: E/AndroidRuntime(490): at java.lang.reflect.Method.invoke(Method.java:521)
03-03 01:35:33.577: E/AndroidRuntime(490): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:868)
03-03 01:35:33.577: E/AndroidRuntime(490): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:626)
03-03 01:35:33.577: E/AndroidRuntime(490): at dalvik.system.NativeStart.main(Native Method)
03-03 01:35:33.577: E/AndroidRuntime(490): Caused by: java.lang.reflect.InvocationTargetException
03-03 01:35:33.577: E/AndroidRuntime(490): at com.example.FirstProject.FirstProjectActivity.myClickHandler(FirstProjectActivity.java:70)
03-03 01:35:33.577: E/AndroidRuntime(490): at java.lang.reflect.Method.invokeNative(Native Method)
03-03 01:35:33.577: E/AndroidRuntime(490): at java.lang.reflect.Method.invoke(Method.java:521)
03-03 01:35:33.577: E/AndroidRuntime(490): at android.view.View$1.onClick(View.java:2067)
03-03 01:35:33.577: E/AndroidRuntime(490): ... 11 more
03-03 01:35:33.577: E/AndroidRuntime(490): Caused by: android.content.ActivityNotFoundException: Unable to find explicit activity class {com.example.FirstProject/com.example.FirstProject.City}; have you declared this activity in your AndroidManifest.xml?
03-03 01:35:33.577: E/AndroidRuntime(490): at android.app.Instrumentation.checkStartActivityResult(Instrumentation.java:1404)
03-03 01:35:33.577: E/AndroidRuntime(490): at android.app.Instrumentation.execStartActivity(Instrumentation.java:1378)
03-03 01:35:33.577: E/AndroidRuntime(490): at android.app.Activity.startActivityForResult(Activity.java:2817)
03-03 01:35:33.577: E/AndroidRuntime(490): at android.app.Activity.startActivity(Activity.java:2923)
03-03 01:35:33.577: E/AndroidRuntime(490): ... 15 more
03-03 01:35:39.176: I/Process(490): Sending signal. PID: 490 SIG: 9
03-03 01:36:06.947: D/AndroidRuntime(517): Shutting down VM
03-03 01:36:06.947: W/dalvikvm(517): threadid=1: thread exiting with uncaught exception (group=0x4001d800)
03-03 01:36:06.967: E/AndroidRuntime(517): FATAL EXCEPTION: main
03-03 01:36:06.967: E/AndroidRuntime(517): java.lang.IllegalStateException: Could not execute method of the activity
03-03 01:36:06.967: E/AndroidRuntime(517): at android.view.View$1.onClick(View.java:2072)
03-03 01:36:06.967: E/AndroidRuntime(517): at android.view.View.performClick(View.java:2408)
03-03 01:36:06.967: E/AndroidRuntime(517): at android.view.View$PerformClick.run(View.java:8816)
03-03 01:36:06.967: E/AndroidRuntime(517): at android.os.Handler.handleCallback(Handler.java:587)
03-03 01:36:06.967: E/AndroidRuntime(517): at android.os.Handler.dispatchMessage(Handler.java:92)
03-03 01:36:06.967: E/AndroidRuntime(517): at android.os.Looper.loop(Looper.java:123)
03-03 01:36:06.967: E/AndroidRuntime(517): at android.app.ActivityThread.main(ActivityThread.java:4627)
03-03 01:36:06.967: E/AndroidRuntime(517): at java.lang.reflect.Method.invokeNative(Native Method)
03-03 01:36:06.967: E/AndroidRuntime(517): at java.lang.reflect.Method.invoke(Method.java:521)
03-03 01:36:06.967: E/AndroidRuntime(517): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:868)
03-03 01:36:06.967: E/AndroidRuntime(517): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:626)
03-03 01:36:06.967: E/AndroidRuntime(517): at dalvik.system.NativeStart.main(Native Method)
03-03 01:36:06.967: E/AndroidRuntime(517): Caused by: java.lang.reflect.InvocationTargetException
03-03 01:36:06.967: E/AndroidRuntime(517): at com.example.FirstProject.FirstProjectActivity.myClickHandler(FirstProjectActivity.java:70)
03-03 01:36:06.967: E/AndroidRuntime(517): at java.lang.reflect.Method.invokeNative(Native Method)
03-03 01:36:06.967: E/AndroidRuntime(517): at java.lang.reflect.Method.invoke(Method.java:521)
03-03 01:36:06.967: E/AndroidRuntime(517): at android.view.View$1.onClick(View.java:2067)
03-03 01:36:06.967: E/AndroidRuntime(517): ... 11 more
03-03 01:36:06.967: E/AndroidRuntime(517): Caused by: android.content.ActivityNotFoundException: Unable to find explicit activity class {com.example.FirstProject/com.example.FirstProject.City}; have you declared this activity in your AndroidManifest.xml?
03-03 01:36:06.967: E/AndroidRuntime(517): at android.app.Instrumentation.checkStartActivityResult(Instrumentation.java:1404)
03-03 01:36:06.967: E/AndroidRuntime(517): at android.app.Instrumentation.execStartActivity(Instrumentation.java:1378)
03-03 01:36:06.967: E/AndroidRuntime(517): at android.app.Activity.startActivityForResult(Activity.java:2817)
03-03 01:36:06.967: E/AndroidRuntime(517): at android.app.Activity.startActivity(Activity.java:2923)
03-03 01:36:06.967: E/AndroidRuntime(517): ... 15 more
03-03 01:36:13.306: I/Process(517): Sending signal. PID: 517 SIG: 9
When you want to detect if you click on an item you need to implement the onItemClickedListener i will give you an example below like i would do it:
listView.setOnItemClickListener(new MyOnitemClickListener());
//no i make my own class that impelemnts the onitemclicklistener
public class MyOnitemClickListener implements OnItemClickListener {
private int position = 0;
public void onItemClick(AdapterView<?> parent, View view, int pos,
long lat) {
// clicked on parent.getid()
if (parent.getId() == R.id.listView) {
//do something
}
}
}
after a crash, try looking for the first couple of red lines the LOGCAT spews to you as they usually explain what happened.
the following line :
java.lang.NullPointerException
(in line 5) showed up on you log, it usually means your trying to use an uninitialized object.
refer to:
What is a NullPointerException, and how do I fix it?
Got a trace like this:
java.lang.StackOverflowError
at android.widget.TextView.onMeasure(TextView.java:5160)
at android.view.View.measure(View.java:8172)
at android.widget.TableRow.getColumnsWidths(TableRow.java:308)
at android.widget.TableLayout.findLargestCells(TableLayout.java:497)
at android.widget.TableLayout.measureVertical(TableLayout.java:462)
at android.widget.TableLayout.onMeasure(TableLayout.java:428)
at android.view.View.measure(View.java:8172)
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:3140)
at android.widget.LinearLayout.measureChildBeforeLayout(LinearLayout.java:1012)
at android.widget.LinearLayout.measureVertical(LinearLayout.java:381)
at android.widget.LinearLayout.onMeasure(LinearLayout.java:304)
at android.view.View.measure(View.java:8172)
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:3140)
at android.widget.LinearLayout.measureChildBeforeLayout(LinearLayout.java:1012)
at android.widget.LinearLayout.measureHorizontal(LinearLayout.java:696)
at android.widget.LinearLayout.onMeasure(LinearLayout.java:306)
at android.view.View.measure(View.java:8172)
at android.widget.ListView.measureScrapChild(ListView.java:1135)
at android.widget.ListView.measureHeightOfChildren(ListView.java:1200)
at android.widget.ListView.onMeasure(ListView.java:1109)
at android.view.View.measure(View.java:8172)
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:3140)
at android.widget.LinearLayout.measureChildBeforeLayout(LinearLayout.java:1012)
at android.widget.LinearLayout.measureVertical(LinearLayout.java:381)
at android.widget.LinearLayout.onMeasure(LinearLayout.java:304)
at android.view.View.measure(View.java:8172)
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:3140)
at android.widget.FrameLayout.onMeasure(FrameLayout.java:245)
at android.view.View.measure(View.java:8172)
at android.widget.LinearLayout.measureVertical(LinearLayout.java:526)
at android.widget.LinearLayout.onMeasure(LinearLayout.java:304)
at android.view.View.measure(View.java:8172)
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:3140)
at android.widget.FrameLayout.onMeasure(FrameLayout.java:245)
at android.view.View.measure(View.java:8172)
at android.view.ViewRoot.performTraversals(ViewRoot.java:805)
at android.view.ViewRoot.handleMessage(ViewRoot.java:1744)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:144)
at android.app.ActivityThread.main(ActivityThread.java:4937)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:521)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:868)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:626)
at dalvik.system.NativeStart.main(Native Method)
Is there anything that can be done here?
I'm getting reports of blank screens and force closes.
When stack traces don't help the best thing you can do is trace it.
Start to scatter log messages through strategic parts of your application, and once you find where it is set some breakpoints and step through.
Log.d("MyActivity", "MyClass.getView() — Initializing ");
Once you have your logs setup use LogCat