how to view logo depending upon screen resolution?

Question

Hi I created one medical app. it,s working fine. i placed one logo in center of the app screen my logo size height and width is 70x70 and my emulator screen resolution is 900 x 800 if i change my screen resolution i wish to change my logo size also dynamic. this is my doubt how to set logo depending upon the screen resolution?

code:

public class ImageviewAppActivity extends Activity {

    private ImageView img; 
    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        img =(ImageView) findViewById(R.id.imagetest);
        img.setMaxWidth(20);
        img.setMaxHeight(100);


    }
}

xml: main.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:orientation="vertical" >

    <ImageView
        android:id="@+id/imagetest"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:src="@drawable/ic_launcher" />

</LinearLayout>

Answer 1

Look,I think you should set size of logog according to diffrent resolution then try to use

DisplayMetrics metrics = new DisplayMetrics();
getWindowManager().getDefaultDisplay().getMetrics(metrics);
float density = metrics.density;

density is float and its value changed as per screen size...

so,if you have

240*320 density is 0.5
320*480 density is 1.0
480*800 density is 1.5

and set size using density like , img.setMaxHeight(density*100);

and also put multiple screen supports in manifest file...Multiple Screen Support