android MMS sending error

I have a problem with sending mms in android. I've seen many examples but none of them are sending an image from res/drawable which is what I'm trying to do. Please help me spot the problem.

public class Main extends Activity {

@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.main);

    Uri uri = Uri.parse("android.resource://com.mypackage/" + R.drawable.myimage);
    Intent sendIntent = new Intent(Intent.ACTION_SEND);
    sendIntent.putExtra("sms_body", "some text"); 
    sendIntent.putExtra(Intent.EXTRA_STREAM, uri);
    sendIntent.setType("image/png");
    startActivity(sendIntent);
}

Here are my error messages:

08-23 23:09:55.653: ERROR/AndroidRuntime(2205): FATAL EXCEPTION: main 08-23 23:09:55.653: ERROR/AndroidRuntime(2205): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.android.mms/com.android.mms.ui.ComposeMessageActivity}: java.lang.NullPointerException 08-23 23:09:55.653: ERROR/AndroidRuntime(2205): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2663) 08-23 23:09:55.653: ERROR/AndroidRuntime(2205): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2679) 08-23 23:09:55.653: ERROR/AndroidRuntime(2205): at android.app.ActivityThread.access$2300(ActivityThread.java:125) 08-23 23:09:55.653: ERROR/AndroidRuntime(2205): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2033) 08-23 23:09:55.653: ERROR/AndroidRuntime(2205): at android.os.Handler.dispatchMessage(Handler.java:99) 08-23 23:09:55.653: ERROR/AndroidRuntime(2205): at android.os.Looper.loop(Lo开发者_运维技巧oper.java:123) 08-23 23:09:55.653: ERROR/AndroidRuntime(2205): at android.app.ActivityThread.main(ActivityThread.java:4627) 08-23 23:09:55.653: ERROR/AndroidRuntime(2205): at java.lang.reflect.Method.invokeNative(Native Method) 08-23 23:09:55.653: ERROR/AndroidRuntime(2205): at java.lang.reflect.Method.invoke(Method.java:521) 08-23 23:09:55.653: ERROR/AndroidRuntime(2205): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:868) 08-23 23:09:55.653: ERROR/AndroidRuntime(2205): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:626) 08-23 23:09:55.653: ERROR/AndroidRuntime(2205): at dalvik.system.NativeStart.main(Native Method) 08-23 23:09:55.653: ERROR/AndroidRuntime(2205): Caused by: java.lang.NullPointerException 08-23 23:09:55.653: ERROR/AndroidRuntime(2205): at com.android.mms.ui.UriImage.(UriImage.java:68) 08-23 23:09:55.653: ERROR/AndroidRuntime(2205): at com.android.mms.model.ImageModel.initModelFromUri(ImageModel.java:82) 08-23 23:09:55.653: ERROR/AndroidRuntime(2205): at com.android.mms.model.ImageModel.(ImageModel.java:64) 08-23 23:09:55.653: ERROR/AndroidRuntime(2205): at com.android.mms.data.WorkingMessage.changeMedia(WorkingMessage.java:461) 08-23 23:09:55.653: ERROR/AndroidRuntime(2205): at com.android.mms.data.WorkingMessage.setAttachment(WorkingMessage.java:362) 08-23 23:09:55.653: ERROR/AndroidRuntime(2205): at com.android.mms.ui.ComposeMessageActivity.addImage(ComposeMessageActivity.java:2640) 08-23 23:09:55.653: ERROR/AndroidRuntime(2205): at com.android.mms.ui.ComposeMessageActivity.addAttachment(ComposeMessageActivity.java:2776) 08-23 23:09:55.653: ERROR/AndroidRuntime(2205): at com.android.mms.ui.ComposeMessageActivity.handleSendIntent(ComposeMessageActivity.java:2705) 08-23 23:09:55.653: ERROR/AndroidRuntime(2205): at com.android.mms.ui.ComposeMessageActivity.initialize(ComposeMessageActivity.java:1743) 08-23 23:09:55.653: ERROR/AndroidRuntime(2205): at com.android.mms.ui.ComposeMessageActivity.onCreate(ComposeMessageActivity.java:1678) 08-23 23:09:55.653: ERROR/AndroidRuntime(2205): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1047) 08-23 23:09:55.653: ERROR/AndroidRuntime(2205): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2627) 08-23 23:09:55.653: ERROR/AndroidRuntime(2205): ... 11 more

you cannot expose application resources directly to the outside world.

you can try implementing a content provider. LINK

using this you can send you own custom uri and when the file is searched you can open the file from your resources and supply it.

you have to check the manifest.xml as well for the relative entry of the content provider.