Android工具类篇 屏幕辅助类 ScreenUtils

概述importandroid.app.Activity;importandroid.content.Context;importandroid.graphics.Bitmap;importandroid.graphics.Rect;importandroid.util.DisplayMetrics;importandroid.view.View;importandroid.view.WindowMan

    import androID.app.Activity;      import androID.content.Context;      import androID.graphics.Bitmap;      import androID.graphics.Rect;      import androID.util.displayMetrics;      import androID.vIEw.VIEw;      import androID.vIEw.WindowManager;      /**      * 获得屏幕相关的辅助类      */      public class ScreenUtils      {          private ScreenUtils()          {              /* cannot be instantiated */              throw new UnsupportedOperationException("cannot be instantiated");          }          /**          * 获得屏幕高度          *           * @param context          * @return          */          public static int getScreenWIDth(Context context)          {              WindowManager wm = (WindowManager) context                      .getSystemService(Context.WINDOW_SERVICE);              displayMetrics outMetrics = new displayMetrics();              wm.getDefaultdisplay().getMetrics(outMetrics);              return outMetrics.wIDthPixels;          }          /**          * 获得屏幕宽度          *           * @param context          * @return          */          public static int getScreenHeight(Context context)          {              WindowManager wm = (WindowManager) context                      .getSystemService(Context.WINDOW_SERVICE);              displayMetrics outMetrics = new displayMetrics();              wm.getDefaultdisplay().getMetrics(outMetrics);              return outMetrics.heightPixels;          }          /**          * 获得状态栏的高度          *           * @param context          * @return          */          public static int getStatusHeight(Context context)          {              int statusHeight = -1;              try              {                  Class<?> clazz = Class.forname("com.androID.internal.R$dimen");                  Object object = clazz.newInstance();                  int height = Integer.parseInt(clazz.getFIEld("status_bar_height")                          .get(object).toString());                  statusHeight = context.getResources().getDimensionPixelSize(height);              } catch (Exception e)              {                  e.printstacktrace();              }              return statusHeight;          }          /**          * 获取当前屏幕截图，包含状态栏          *           * @param activity          * @return          */          public static Bitmap snapShotWithStatusbar(Activity activity)          {              VIEw vIEw = activity.getwindow().getDecorVIEw();              vIEw.setDrawingCacheEnabled(true);              vIEw.buildDrawingCache();              Bitmap bmp = vIEw.getDrawingCache();              int wIDth = getScreenWIDth(activity);              int height = getScreenHeight(activity);              Bitmap bp = null;              bp = Bitmap.createBitmap(bmp, 0, 0, wIDth, height);              vIEw.destroyDrawingCache();              return bp;          }          /**          * 获取当前屏幕截图，不包含状态栏          *           * @param activity          * @return          */          public static Bitmap snapShotWithoutStatusbar(Activity activity)          {              VIEw vIEw = activity.getwindow().getDecorVIEw();              vIEw.setDrawingCacheEnabled(true);              vIEw.buildDrawingCache();              Bitmap bmp = vIEw.getDrawingCache();              Rect frame = new Rect();              activity.getwindow().getDecorVIEw().getwindowVisibledisplayFrame(frame);              int statusbarHeight = frame.top;              int wIDth = getScreenWIDth(activity);              int height = getScreenHeight(activity);              Bitmap bp = null;              bp = Bitmap.createBitmap(bmp, 0, statusbarHeight, wIDth, height                      - statusbarHeight);              vIEw.destroyDrawingCache();              return bp;          }      }  

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