我们需要获取Android手机或Pad的屏幕的物理尺寸，以便于界面的设计或是其他功能的实现。下面就分享一下Android中常用的一些辅助方法：
获取屏幕高度：
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/*** 获得屏幕高度* @param context* @return* by Hankkin at:2015-10-07 21:15:59*/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;} |
获取屏幕宽度：
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/*** 获得屏幕宽度* @param context* @return* by Hankkin at:2015-10-07 21:16:13*/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;} |
获取屏幕密度：
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/*** 获取屏幕密度* @param context* @return* by Hankkin at:2015-10-07 21:16:29*/public static float getScreenDensity(Context context) {return context.getResources().getDisplayMetrics().density;} |
dip转px：
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/*** dip转px像素* @param context* @param px* @return* by Hankkin at:2015-10-07 21:16:43*/public static int dip2px(Context context, float px) {final float scale = getScreenDensity(context);return (int) (px * scale + 0.5);} |
获取状态栏高度：
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/*** 获得状态栏的高度* @param context* @return* by Hankkin at:2015-10-07 21:16:43*/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;} |
获取屏幕当前截图：
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/*** 获取当前屏幕截图，包含状态栏* @param activity* @return* by Hankkin at:2015-10-07 21:16:43*/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* by Hankkin at:2015-10-07 21:16:43*/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;} |
以上所述是本文给大家介绍的Android获取常用辅助方法(获取屏幕高度、宽度、密度、通知栏高度、截图)，希望对大家也是帮助，更多信息登录服务器之家网站了解更多信息。
