Activity

package com.tim.rickers.formelerkennung;

import java.io.File;
import java.io.IOException;

import android.app.Activity;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.Canvas;
import android.graphics.Paint;
import android.graphics.PorterDuff.Mode;
import android.graphics.PorterDuffXfermode;
import android.os.Bundle;
import android.support.v7.app.ActionBarActivity;
import android.view.Menu;
import android.view.MenuItem;
import android.widget.ImageView;
import android.widget.RelativeLayout;

import java.io.*;
import java.awt.*;





public class BildAnzeigen extends ActionBarActivity {

        @Override
        protected void onCreate(Bundle savedInstanceState) {
                super.onCreate(savedInstanceState);
                setContentView(R.layout.activity_bild_anzeigen);


        }

        @Override
        public boolean onCreateOptionsMenu(Menu menu) {
                // Inflate the menu; this adds items to the action bar if it is present.
                getMenuInflater().inflate(R.menu.bild_anzeigen, menu);
                return true;
        }

        @Override
        public boolean onOptionsItemSelected(MenuItem item) {
                // Handle action bar item clicks here. The action bar will
                // automatically handle clicks on the Home/Up button, so long
                // as you specify a parent activity in AndroidManifest.xml.
                int id = item.getItemId();
                if (id == R.id.action_settings) {
                        return true;
                }
                return super.onOptionsItemSelected(item);
        }


        String imageFileName =getIntent().getStringExtra("imageFileName");
        //String bildquelle = "R.drawable." + imageFileName;


        public class ImageChange extends Activity {

                ImageView iv = new ImageView(this);
                String bildquelle = "R.drawable." + imageFileName;
                int id = getResources().getIdentifier(bildquelle, "drawable", getPackageName());


                Bitmap bMap = BitmapFactory.decodeResource(getResources(), id);
                //Bitmap bMap = BitmapFactory.decodeFile("/res/drawable/" + imageFileName);
                iv.setImageBitmap(bMap);


            }