21 Android 屏幕的宽高

package com.example.screen;

import android.os.Bundle;
import android.app.Activity;
import android.util.DisplayMetrics;
import android.view.Menu;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.EditText;

public class MainActivity extends Activity {
    private Button btn;
    private EditText edt1;
    private EditText edt2;
	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.activity_main);
		edt1=(EditText)findViewById(R.id.editText1);
		edt2=(EditText)findViewById(R.id.editText2);
		btn=(Button)findViewById(R.id.button1);
		final  DisplayMetrics dm=new DisplayMetrics();
		getWindowManager().getDefaultDisplay().getMetrics(dm);
		btn.setOnClickListener(new OnClickListener() {
			
			@Override
			public void onClick(View v) {
				// TODO Auto-generated method stub
				edt1.setText(dm.heightPixels+"");
				edt2.setText(dm.widthPixels+"");;
				
			}
		});
	}

	@Override
	public boolean onCreateOptionsMenu(Menu menu) {
		// Inflate the menu; this adds items to the action bar if it is present.
		getMenuInflater().inflate(R.menu.main, menu);
		return true;
	}

}