近期一直在做我的畢業設計--鄭大學生助手,先給這個Android應用做一個主題切換功能,以前也使用過Gallery,最初自己的想法也是使用這個,再讓使用者選擇使用哪一個,可是當我在寫代碼中,eclipse提示The type Gallery is deprecated。查閱資料後發現2.2以上版本已經用HorizontalScrollView取代Gallery
在Android4.0(API leverl 14)中使用ActionProvider能夠更容易的實現一個在ActionBar中的方便使用和高效的共用Action。一旦一個ActionProvider附加到ShareActionProvider菜單中,你只需要提供一個共用的Intent就可以,剩下的其他工作由它來完成。注意一點:ActionProvider只能用在API lever 14及以後的版本中。
今天自訂了一個AlertDialog對話方塊,第一次點擊時正常,但第二次調用時會出現錯誤:java.lang.IllegalStateException: The specified child already has a parent. You must call removeView() on the child's parent first. 出錯的代碼為:[java] //視窗構造器 synchronized protected
The SearchView and action bar are only available on Android 3.0 and later. To support older platforms, you can fall back to the search dialog. The search dialog is a system provided UI that overlays on top of your application when invoked.
Decide on a Substitute SolutionThe most challenging task in using newer UI features in a backward-compatible way is deciding on and implementing an older (fallback) solution for older platform versions. In many cases, it's possible to fulfill
An important aspect of the user experience when operating a TV is the direct human interface: a remote control. As you optimize your Android application for TVs, you should pay special attention to how the user actually navigates around your
今天裝了個Android Studio試試,安裝完成後卻打不開。我的作業系統是32位的,Android Studio同事用的64位系統就沒問題。進入命令列執行 android-studio\bin 目錄下的studio.bat提示Unrecognized VM option '+UseCodeCacheFlushing' Could not create the Java virtual machine也就是不能建立虛擬機器。用文本工具開啟studio.batline25 to