我們需要獲取Android手機或Pad的屏幕的物理尺寸,以便于界面的設計或是其他功能的實現。下面就分享一下Android中常用的一些輔助方法:
獲取屏幕高度:
/*** 獲得屏幕高度* @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;}獲取屏幕寬度:
/*** 獲得屏幕寬度* @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;}獲取屏幕密度:
/*** 獲取屏幕密度* @param context* @return* by Hankkin at:2015-10-07 21:16:29*/public static float getScreenDensity(Context context) {return context.getResources().getDisplayMetrics().density;}dip轉px:
/*** dip轉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);}獲取狀態欄高度:
/*** 獲得狀態欄的高度* @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;}獲取屏幕當前截圖:
/*** 獲取當前屏幕截圖,包含狀態欄* @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;}/*** 獲取當前屏幕截圖,不包含狀態欄* @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;}以上所述是本文給大家介紹的Android獲取常用輔助方法(獲取屏幕高度、寬度、密度、通知欄高度、截圖),希望對大家也是幫助,更多信息登錄武林網網站了解更多信息。
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