編輯:關於Android編程
獲取屏幕信息:狀態欄高度、content大小
public void getScreenInfo(final Activity activity){ final View v = activity.getWindow().findViewById(Window.ID_ANDROID_CONTENT); v.getViewTreeObserver().addOnPreDrawListener(new ViewTreeObserver.OnPreDrawListener() { @Override public boolean onPreDraw() { Rect frame = new Rect(); activity.getWindow().getDecorView().getWindowVisibleDisplayFrame(frame); int statusBarHeight = frame.top; v.getViewTreeObserver().removeOnPreDrawListener(this); Log.e("", "ScreenInfo===ContentVIew===Height:" + v.getHeight() + " Width:" + v.getWidth() + " Top:" + v.getTop() + " Left:" + v.getLeft()+" Bottom:"+v.getBottom()+" 狀態欄高度:"+statusBarHeight); return true; } }); }
private static int widthPixels = 0; private static int heightPixels = 0; private static float density = 0; public static DisplayMetrics getMetrics(Context context) { DisplayMetrics metrics = new DisplayMetrics(); getWindowManager(context).getDefaultDisplay().getMetrics(metrics); return metrics; } public static String getOrientation(Context context) { switch (getWindowManager(context).getDefaultDisplay().getRotation()) { case Surface.ROTATION_0: return "portrait"; case Surface.ROTATION_90: return "landscape"; case Surface.ROTATION_180: return "reverse portrait"; default: return "reverse landscape"; } } public static WindowManager getWindowManager(Context context) { return (WindowManager) context.getSystemService(Context.WINDOW_SERVICE); } public static int getWidth(Context context) { if (widthPixels == 0) { widthPixels = getMetrics(context).widthPixels; } return widthPixels; } public static int getHeight(Context context) { if (heightPixels == 0) { ViewConfiguration.get(context).hasPermanentMenuKey(); heightPixels = getMetrics(context).heightPixels; } return heightPixels; } public static float getDensity(Context context) { if (density == 0) { density = getMetrics(context).density; } return density; }
本文實例為大家分享了Android刮刮卡效果控件,供大家參考,具體內容如下刮刮卡類: package com.reyo.view;import android.conte
以下源碼來自Launcher2.3的例子 1.默認每個應用的主Activity都會自帶 ,表示該應用安裝到Launcher時點擊打開該Activity 2.
今天用了AS混淆項目,工程使用了fastjson解析數據,混淆出現以下問題:Warning:com.alibaba.fastjson.support.jaxrs.Fast
一、什麼是加殼?加殼是在二進制的程序中植入一段代碼,在運行的時候優先取得程序的控制權,做一些額外的工作。大多數病毒就是基於此原理。二、加殼作用加殼的程序可以有效阻止對程序