//获得屏幕相关的辅助类

public class ScreenUtils

{

private ScreenUtils()

{

/* cannot be instantiated */

throw new UnsupportedOperationException("cannot be instantiated");

}

/**

* 获得屏幕宽度

*

* @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;

}

/**

* 获得屏幕高度

*

* @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.xml");

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;

}

}