android 常用代碼

<span style="color: rgb(255, 0, 0);">// 建立一個toast對象</span> private Toast toast;   public void showMsg(String arg) { if (toast == null) { toast = Toast.makeText(this, arg, Toast.LENGTH_SHORT); } else { toast.cancel(); toast.setText(arg); } toast.show(); }

res/drawable目錄下面建立一個設定圓角邊框參數的xml檔案，如下：

corner_round.xml:

 

<?xml version="1.0" encoding="utf-8"?><shape xmlns:android="http://schemas.android.com/apk/res/android" >    <solid android:color="#FFCC33" />    <corners android:radius="10dp" /></shape>

調用：android:background="@drawable/corner_round"

編輯精選】