获取屏幕高度和宽度

Question

我检查参考以获取屏幕高度和宽度。我的手机的高度和宽度像下面

Point p = new Point(); 
getWindowManager().getDefaultDisplay().getSize(p); 
p.x //width 540 
p.y //height 960 

我写了一个演示，但价值得到不正确的 这样

import android.graphics.Point; 

public class Strike { 
    private StrikeView view; 
    private int left = 0; 
    private int top = 0; 
    private Point win; 
    private boolean isDown = true; 
    private boolean isRight = true; 

    public Strike(StrikeView view, Point win) { 
     this.view = view; 
     this.win = win; 
     this.left = view.getLeft(); 
     this.top = view.getTop(); 
    } 

    /** 
    * Set direction and refresh 
    */ 
    public void setPostion() { 
     view.setLeft(left); 
     view.setTop(top); 
     view.invalidate(); 
    } 

    /** 
    * calculate view direction 
    */ 
    public void postion() { 
     if (isRight) { 
      if (left + 30 < win.x) 
       left++; 
      else { 
       isRight = false; 
       left--; 
      } 
     } else { 
      if (left > 0) 
       left--; 
      else { 
       isRight = true; 
       left++; 
      } 
     } 
     if (isDown) { 
      if (top + 30 < win.y) 
       top++; 
      else { 
       isDown = false; 
       top--; 
      } 
     } else { 
      if (top > 0) 
       top--; 
      else { 
       isDown = true; 
       top++; 
      } 
     } 

    } 

} 

Answer 1

这里的演示是我用什么（在Android测试2.1+） ：

private void size() { 
    if (Build.VERSION.SDK_INT < Build.VERSION_CODES.HONEYCOMB_MR2) { 
     size_old(getWindowManager().getDefaultDisplay()); 
    } 
    else { 
     size_new(getWindowManager().getDefaultDisplay()); 
    } 
} 

@TargetApi(Build.VERSION_CODES.HONEYCOMB_MR2) 
private void size_new(Display display) { 
    Point point = new Point(); 
    display.getSize(point); 
      // point.x and point.y 
} 

@SuppressWarnings("deprecation") 
private String size_old(Display display) { 
    // display.getWidth() and display.getHeight() 
} 

Answer 2

要知道，任何手机的尺寸是值得用这样的方法......

DisplayMetrics displaymetrics = new DisplayMetrics(); 
    getWindowManager().getDefaultDisplay().getMetrics(displaymetrics); 
    int height = displaymetrics.heightPixels; 
    int wwidth = displaymetrics.widthPixels; 

Answer 3

使用此项：

DisplayMetrics metrics = context.getResources().getDisplayMetrics(); 
    int width = metrics.widthPixels; 
    int height = metrics.heightPixels;