issue with screen resolution

Question

Through programming how can i know whats the screen resolution of my screen. As soon as run the app it should find out the screen resolution in dp and in pixel.

How can do that?

Thank you

Answer 1

Use below code to get screen width & height

DisplayMetrics dm = new DisplayMetrics();
getWindowManager().getDefaultDisplay().getMetrics(dm);
int width = dm.widthPixels;
int height = dm.heightPixels;

Also dont forget to add

<uses-sdk android:minSdkVersion="4"/>

in your manifest. The value of minSdkVersion be equal or above 4. But if your minSdkVersion is 3 then your targetSdkVersion should be equal or above 4

<uses-sdk android:minSdkVersion="3" android:targetSdkVersion="8" />

to have correct value of width & height.

Answer 2

Use, DisplayMetrics to get screen info from your device.

Some sample code,

DisplayMetrics dm = new DisplayMetrics();
getWindowManager().getDefaultDisplay().getMetrics(dm);

final int height = dm.heightPixels;
final int width = dm.widthPixels;

EDIT:

float xDpi =   dm.xdpi;
float yDpi =   dm.ydpi;

float density = dm.density;