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：

/** * 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：

/** * 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：

/** * 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：

/** * 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：

/** * 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：

/** * 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，更多信息登录查字典教程网了解更多信息。