Versenden von Bildern

public class SendActivity extends Activity implements OnClickListener{

	Button bSend;
	ImageView ivBild;
	Bitmap bm1;
	int Kameracode = 15;
	
	File bildfile = new File(Environment.getExternalStorageDirectory() + "/FotoApp/bild.png");
	Uri bilduri = Uri.fromFile(bildfile);
	
	@Override
	protected void onCreate(Bundle savedInstanceState) {
		// TODO Auto-generated method stub
		super.onCreate(savedInstanceState);
		setContentView(R.layout.send);
		
		bSend = (Button) findViewById(R.id.bSend);
		bSend.setOnClickListener(this);
		ivBild = (ImageView) findViewById(R.id.ivBild);
		if (bildfile.exists()){
			bm1 = BitmapFactory.decodeFile(bildfile.getAbsolutePath());
			ivBild.setImageBitmap(bm1);		
			}
	}
		
	@Override
	public void onClick(View v) {
		// TODO Auto-generated method stub
		switch(v.getId()){
		case R.id.bSend:
			Intent shareIntent = new Intent();
			shareIntent.setAction(android.content.Intent.ACTION_SEND);
           // bm1 = BitmapFactory.decodeFile(bildfile.getAbsolutePath());
            Uri screenshotUri = Uri.parse("/FotoApp/bild.png");
            shareIntent.putExtra(android.content.Intent.EXTRA_STREAM, screenshotUri);
            shareIntent.setType("image/png"); 
            shareIntent.setPackage("com.whatsapp"); 
            startActivity(Intent.createChooser(shareIntent, "Share using"));            
			break;
		}
	}
}

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical" >

    <TextView
        android:id="@+id/textView1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="2 Seite"
        android:textAppearance="?android:attr/textAppearanceLarge" />

    <Button
        android:id="@+id/bSend"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Send" />

    <ImageView
            android:id="@+id/ivBild"
            android:layout_width="match_parent"
            android:layout_height="fill_parent"
            android:layout_centerHorizontal="true"
            android:layout_centerVertical="true"
            android:src="@drawable/ic_launcher"
            android:layout_marginTop="250dp"
            android:layout_marginLeft="70dp"/>

</LinearLayout>

Uri screenshotUri = Uri.parse("android.resource://com.camera.paier/drawable/"+R.drawable.ic_launcher);           
            Intent shareIntent = new Intent(android.content.Intent.ACTION_SEND);
            shareIntent.putExtra(android.content.Intent.EXTRA_STREAM, screenshotUri);
            shareIntent.setType("image/*"); 
            startActivity(Intent.createChooser(shareIntent, "Share using"));

Uri screenshotUri = Uri.parse("/FotoApp/bild.png")