Android获取屏幕宽高像素

public class MainActivity extends AppCompatActivity {

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);

DisplayMetrics metrics = new DisplayMetrics();
//给当前metrics去设置当前屏幕信息(宽高(像素单位))
getWindowManager().getDefaultDisplay().getMetrics(metrics);
//获取屏幕的宽度和高度
int widthPixels = metrics.widthPixels;
int heightPixels = metrics.heightPixels;
Toast.makeText(this, "宽" + widthPixels + ",高" + heightPixels, Toast.LENGTH_SHORT).show();
}
}