Downloaded Image Appears Very Blurry

I downloaded an image to use following this excellent article. My own image I'm using is a google map static image that is 300x400. I've fiddle with a few of the settings and have

Solution 1:

Is 300x400 not a good res for android?

it depends on original image orientation and a couple of other things like your layout and device display. Alternatively, you could try the following code to download an image, this works fine for me:

don't forget to add

<uses-permissionandroid:name="android.permission.INTERNET"></uses-permission>

to your Manifest

publicclassMainActivityextendsActivity {

private Button get;
private ImageView pic;
privatestaticfinalStringSRC="http://www.allindiaflorist.com/imgs/arrangemen4.jpg";

@OverrideprotectedvoidonCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    get = (Button)findViewById(R.id.button1);
    pic = (ImageView)findViewById(R.id.imageView1);

    get.setOnClickListener(newView.OnClickListener() {

        @OverridepublicvoidonClick(View v) {

            pic.setImageBitmap(getBitmapFromURL(SRC));

        }
    });

}

 publicstatic Bitmap getBitmapFromURL(String src) {
        try {
            URLurl=newURL(src);
            HttpURLConnectionconnection= (HttpURLConnection) url
                    .openConnection();
            connection.setDoInput(true);
            connection.connect();
            InputStreaminput= connection.getInputStream();
            BitmapmyBitmap= BitmapFactory.decodeStream(input);

            return myBitmap;
        } catch (IOException e) {
            e.printStackTrace();
            Log.e("getBmpFromUrl error: ", e.getMessage().toString());
            returnnull;
        }
    }

    }

Solution 2:

I found the reason why they were low, the image loader class had a built in compression:

//decodes image and scales it to reduce memory consumptionprivate Bitmap decodeFile(File f){
    try {
        //decode image size
        BitmapFactory.Optionso=newBitmapFactory.Options();
        o.inJustDecodeBounds = true;
        BitmapFactory.decodeStream(newFileInputStream(f),null,o);

        //Find the correct scale value. It should be the power of 2.finalint 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*=2;
        }

        //decode with inSampleSize
        BitmapFactory.Optionso2=newBitmapFactory.Options();
        o2.inSampleSize=scale;
        return BitmapFactory.decodeStream(newFileInputStream(f), null, o2);
    } catch (FileNotFoundException e) {}
    returnnull;
}

So just remove this part so you are left with:

//decodes image and scales it to reduce memory consumptionprivateBitmapdecodeFile(File f){

  try {
    returnBitmapFactory.decodeStream(newFileInputStream(f));
} catch (FileNotFoundException e) {
    e.printStackTrace();
}
returnnull;

}

Crystal clear images.