Android - 自定義按鈕透明

Question

我跟着這個YouTube Tutorial 一些如何我的自定義按鈕它是透明的，這裏是我的自定義按鈕的xml代碼，我可以構建，但應用程序立即崩潰。

的exeprion是 Android.Views.InflateException：二進制XML文件行＃1：錯誤充氣類android.widget.Button

<selctor xmlns:android="http://schemas.android.com/apk/res/android"> 
    <item android:state_pressed="false"> 
    <layer-list> 
     <item android:right="5dp" android:top="5dp"> 
     <corners android:radius = "2dp"/> 
     <solid android:color ="#BABABA"/> 
     </item> 

     <item android:bottom="2dp" android:left ="2dp"> 
     <shape> 
      <gradient android:angle="270" android:endColor = "#4A6EA9" android:startColor ="#4A6EA9"/> 
      <stroke android:width="1dp" android:color ="#D6D6D6"/> 
      <corners android:radius="4dp" /> 
      <padding android:bottom="10dp" android:top="10dp" android:left="10dp" android:right="10dp" /> 
     </shape> 
     </item> 
    </layer-list> 
    </item> 

    <item android:state_pressed="true"> 
    <layer-list> 
     <item android:right="5dp" android:top="5dp"> 
     <corners android:radius = "3dp"/> 
     <solid android:color ="#4A6EA9"/> 
     </item> 

     <item android:bottom="2dp" android:left ="2dp"> 
     <shape> 
      <gradient android:angle="270" android:endColor = "#4A6EA9" android:startColor ="#4A6EA9"/> 
      <stroke android:width ="1dp" android:color ="#BABABA"/> 
      <corners android:radius="5dp" /> 
      <padding android:bottom="10dp" android:top="10dp" android:left="10dp" android:right="10dp"/> 
     </shape> 
     </item> 
    </layer-list> 
    </item> 
</selctor> 

Answer 1

缺少形狀標籤：

<?xml version="1.0" encoding="utf-8"?> 
<selector xmlns:android="http://schemas.android.com/apk/res/android"> 
    <item android:state_pressed="false"> 
     <layer-list> 
      <item android:right="5dp" android:top="5dp"> 
       <shape> 
       <corners android:radius = "2dp"/> 
       <solid android:color ="#BABABA"/> 
       </shape> 
      </item> 

      <item android:bottom="2dp" android:left ="2dp"> 
       <shape> 
        <gradient android:angle="270" android:endColor = "#4A6EA9" android:startColor ="#4A6EA9"/> 
        <stroke android:width="1dp" android:color ="#D6D6D6"/> 
        <corners android:radius="4dp" /> 
        <padding android:bottom="10dp" android:top="10dp" android:left="10dp" android:right="10dp" /> 
       </shape> 
      </item> 
     </layer-list> 
    </item> 

    <item android:state_pressed="true"> 
     <layer-list> 
      <item android:right="5dp" android:top="5dp"> 
       <shape> 
       <corners android:radius = "3dp"/> 
       <solid android:color ="#4A6EA9"/> 
       </shape> 
      </item> 

      <item android:bottom="2dp" android:left ="2dp"> 
       <shape> 
        <gradient android:angle="270" android:endColor = "#4A6EA9" android:startColor ="#4A6EA9"/> 
        <stroke android:width ="1dp" android:color ="#BABABA"/> 
        <corners android:radius="5dp" /> 
        <padding android:bottom="10dp" android:top="10dp" android:left="10dp" android:right="10dp"/> 
       </shape> 
      </item> 
     </layer-list> 
    </item> 
</selector>