教你如何通过代码获取当前设备的像素尺寸

package xuganwen.getsize;
import android.app.Activity;
import android.os.Bundle;
import android.util.DisplayMetrics;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.TextView;
public class MainActivity extends Activity implements OnClickListener {
private Button btn;
private TextView tv;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
btn=(Button)findViewById(R.id.btn);
tv=(TextView)findViewById(R.id.tv);
btn.setOnClickListener(this);
}
@Override
public void onClick(View v) {
//DisplayMetrics outMetrics=new DisplayMetrics();
//getWindowManager().getDefaultDisplay().getMetrics(outMetrics);
//int height=outMetrics.heightPixels;
//int width=outMetrics.widthPixels;
int height=getResources().getDisplayMetrics().heightPixels;
int width=getResources().getDisplayMetrics().widthPixels;
tv.setText(height+"*"+width);
}
}