How to scale bitmap to screen size?

Question

I want to know how to scale bitmap to screen height and width?

Can anyone pls tell me how to do this.

Thanks Monali

Answer 1

Try this to Decode the Bitmap :

Where imagefilepath is the path name of image,it will be in String covert that to File by using

File photos= new File(imageFilePath); 

Where photo is the File name of the Image,Now you set your height and width according t your requirements.

public void main(){     Bitmap bitmap = decodeFile(photo);     bitmap = Bitmap.createScaledBitmap(bitmap,150, 150, true);     imageView.setImageBitmap(bitmap); }   private Bitmap decodeFile(File f){     try {         //decode image size         BitmapFactory.Options o = new BitmapFactory.Options();         o.inJustDecodeBounds = true;         BitmapFactory.decodeStream(new FileInputStream(f),null,o);                       //Find the correct scale value. It should be the power of 2.         final int REQUIRED_SIZE=70;         int width_tmp=o.outWidth, height_tmp=o.outHeight;         int scale=1;         while(true){             if(width_tmp/2<REQUIRED_SIZE || height_tmp/2<REQUIRED_SIZE)                 break;             width_tmp/=2;             height_tmp/=2;             scale++;         }          //decode with inSampleSize         BitmapFactory.Options o2 = new BitmapFactory.Options();         o2.inSampleSize=scale;         return BitmapFactory.decodeStream(new FileInputStream(f), null, o2);     } catch (FileNotFoundException e) {}         return null; }