App Crashes On Converting A Bitmap Of Png Image

public Bitmap getResizedBitmap(Bitmap bm, int newWidth) { int newHeight; int width = bm.getWidth(); int height = bm.getHeight(); double aspect_ratio = width/height;

Solution 1:

you can try below code to solve your problem

public class BitmapConvert extends AppCompatActivity { Bitmap bmp;

ImageView imageview_convert;
@OverrideprotectedvoidonCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_bitmap_convert);
    imageview_convert= (ImageView) findViewById(R.id.imageview_convert);


    bmp = BitmapFactory.decodeResource(getResources(), R.drawable.nature);


    imageview_convert.setImageBitmap(getResizedBitmap(bmp,300,200));
}

public Bitmap getResizedBitmap(Bitmap bm, int newWidth, int newHeight) {
    intwidth= bm.getWidth();
    intheight= bm.getHeight();
    floatscaleWidth= ((float) newWidth) / width;
    floatscaleHeight= ((float) newHeight) / height;
    Matrixmatrix=newMatrix();
    matrix.postScale(scaleWidth, scaleHeight);
    BitmapresizedBitmap= Bitmap.createBitmap(
            bm, 0, 0, width, height, matrix, false);

    ByteArrayOutputStreambyteArrayOutputStream=newByteArrayOutputStream();
    resizedBitmap.compress(Bitmap.CompressFormat.PNG, 100, byteArrayOutputStream);

    return resizedBitmap;
}

}