Android如何获取手机的屏幕宽高

1.在activity中获取

public class TActivity extends AppCompatActivity{  @Override  public void onCreate(      @Nullable Bundle savedInstanceState, @Nullable PersistableBundle persistentState)  {     super.onCreate(savedInstanceState, persistentState);     WindowManager manager = getWindowManager();     DisplayMetrics metrics = new DisplayMetrics();     manager.getDefaultDisplay().getMetrics(metrics);     int width = metrics.widthPixels;  //以要素为单位     int height = metrics.heightPixels;  }}

2.在其他类中获取屏幕的宽高

public class text {  public text(Context context) {     -------------------------1111111-------------------

     WindowManager manager = (WindowManager) context.getSystemService(Context.WINDOW_SERVICE);     int width = manager.getDefaultDisplay().getWidth();     int height = manager.getDefaultDisplay().getHeight();

     -------------------------2222222-----------------------

     DisplayMetrics metrics = new DisplayMetrics();     manager.getDefaultDisplay().getMetrics(metrics);     int width2 = metrics.widthPixels;  //以要素为单位      int height2 = metrics.heightPixels;

     ---------------------------33333-------------------     Point point = new Point();     manager.getDefaultDisplay().getSize(point);     int width3 = point.x;  //没去验证,有需要的可以打个log看下.     int height3 = point.y;  }}

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