Refresh Activity/imageview?

In my first activity I have a button and a webview and when I click on the button it opens a new activity with the content of the webview in an imageview. (I transform the webview

Solution 1:

I would highly recommend a different approach. Passing the entire bitmap through intent requires a lot of memory and wont work on older phone lets say SDK 2.3. Try passing the bitmap as a byteArray and build it for display in the next activity. If you want to pass it inbetween activities, I would store it in a file. That's more efficient, and less work for you. You can create private files in your data folder using MODE_PRIVATE that are not accessible to any other app. By the way the following worked for me:

publicvoidsendMessage(View view) {

       webView.setWillNotCacheDrawing(false);
       webView.destroyDrawingCache();
       webView.setDrawingCacheEnabled(true);
       webView.measure(MeasureSpec.makeMeasureSpec(480, MeasureSpec.EXACTLY), 
                MeasureSpec.makeMeasureSpec(800, MeasureSpec.EXACTLY));
       webView.layout(0, 0,  webView.getMeasuredWidth(),  webView.getMeasuredHeight());


        webView.buildDrawingCache(true);
    Bitmapbmap= Bitmap.createBitmap(webView.getDrawingCache());
    webView.destroyDrawingCache();
    //imageView.setMaxHeight(55);//imageView.setMaxWidth(20);Bitmapbmap_New= scaleDownBitmap(bmap,400,this);
    Intentintent=newIntent(this, ImageViewActivity.class);
    //Bitmap b; // your bitmapByteArrayOutputStreambs=newByteArrayOutputStream();
    bmap_New.compress(Bitmap.CompressFormat.PNG, 50, bs);
    intent.putExtra("BitmapImage", bs.toByteArray());
    //intent.putExtra("BitmapImage", bmap_New);
    startActivity(intent);
}

Receiving:

publicclassImageViewActivityextendsActivity {

    ImageView imageView;

    @OverrideprotectedvoidonCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_image_view);

        Log.d("ImageViewActivity", "Oncreate");

        imageView = (ImageView) findViewById(R.id.imageView1);
        //Intent intent = getIntent();//Bitmap bmp = (Bitmap)intent.getParcelableExtra("BitmapImage");if( getIntent().getExtras() != null ){
            Bitmapb= BitmapFactory.decodeByteArray(
                    getIntent().getByteArrayExtra("BitmapImage"),0,getIntent().getByteArrayExtra("BitmapImage").length);  
            imageView.setImageBitmap(b);

        }
        else{
            Log.d("ImageViewActivity", "null");
        }

    }


}