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  • 获得屏幕相关的辅助类

    //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;

    }

    }

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  • 原文地址:https://www.cnblogs.com/weloglog888/p/6576529.html
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