Android的TextView的文本将不会居中 [英] Android TextView text won't center

问题描述

我试图做一个PIN输入活动，但一个小东西是不是很为我工作。我不能让文字在TextView中的中心在截图的顶部位置：

I am trying to make a PIN entry activity, but one little thing is not quite working for me. I can't get the text to center in the TextView's at the top of the screenshot here:

它的工作方式是当用户输入PIN码，我将会把一个明星在每个TextView中可见反馈。问题是，我想明星为中心。我试图layout_gravity =中心，但它不会有所作为。这是我目前的布局：

The way it will work is when the user is entering a PIN, I will place a star in each TextView for visible feedback. The problem is, I want the star to be centered. I have tried layout_gravity="center", but it doesn't make a difference. Here's my current layout:

 <?xml version="1.0" encoding="utf-8"?>
 <LinearLayout
   xmlns:android="http://schemas.android.com/apk/res/android"
   android:orientation="vertical"
   android:layout_width="match_parent"
   android:layout_height="match_parent">
     <TextView 
     android:textAppearance="?android:attr/textAppearanceLarge" 
     android:layout_height="wrap_content" 
     android:id="@+id/textView1" 
     android:text="PIN Required" 
     android:layout_width="wrap_content" 
     android:layout_gravity="center_horizontal" 
     android:layout_marginBottom="12sp"
     ></TextView>
     <LinearLayout 
     android:layout_width="match_parent" 
     android:id="@+id/linearLayout1" 
     android:layout_height="wrap_content" 
     android:layout_marginBottom="12sp" 
     android:layout_gravity="center_horizontal"
     >
         <TextView 
       android:id="@+id/text1" 
       android:layout_height="32sp" 
       android:layout_width="48sp" 
       android:layout_weight="1" 
       android:layout_marginRight="2sp" 
       android:layout_marginLeft="48sp" 
       android:background="#FFFFFF" 
       android:text="X" 
       android:layout_gravity="center"
       ></TextView>
         <TextView 
       android:id="@+id/text2" 
       android:layout_height="32sp" 
       android:layout_width="48sp" 
       android:layout_weight="1" 
       android:layout_marginRight="2sp" 
       android:layout_marginLeft="2sp" 
       android:background="#FFFFFF"
       ></TextView>
         <TextView 
       android:id="@+id/text3" 
       android:layout_height="32sp" 
       android:layout_width="48sp" 
       android:layout_weight="1" 
       android:layout_marginRight="2sp" 
       android:layout_marginLeft="2sp" 
       android:background="#FFFFFF"
       ></TextView>
         <TextView 
       android:id="@+id/text4" 
       android:layout_height="32sp" 
       android:layout_width="48sp" 
       android:layout_weight="1" 
       android:layout_marginRight="48sp" 
       android:layout_marginLeft="2sp" 
       android:background="#FFFFFF"
       ></TextView>
     </LinearLayout>
     <LinearLayout 
     android:layout_width="match_parent" 
     android:id="@+id/linearLayout2" 
     android:layout_height="wrap_content" 
     android:layout_marginBottom="12sp"
     >
         <Button 
       android:text="1" 
       android:textColor="#FFFFFF" 
       android:id="@+id/button1" 
       android:layout_height="32sp" 
       android:layout_width="64sp" 
       android:layout_weight="1" 
       android:editable="false" 
       android:layout_marginRight="2sp" 
       android:layout_marginLeft="48sp" 
       android:background="@drawable/action_background_gradient" 
       android:onClick="ButtonClicked"
       ></Button>
         <Button 
       android:text="2" 
       android:textColor="#FFFFFF" 
       android:id="@+id/button2" 
       android:layout_height="32sp" 
       android:layout_width="64sp" 
       android:layout_weight="1" 
       android:editable="false" 
       android:layout_marginRight="2sp" 
       android:layout_marginLeft="2sp" 
       android:background="@drawable/action_background_gradient" 
       android:onClick="ButtonClicked"
       ></Button>
         <Button 
       android:text="3" 
       android:textColor="#FFFFFF" 
       android:id="@+id/button3" 
       android:layout_height="32sp" 
       android:layout_width="64sp" 
       android:layout_weight="1" 
       android:editable="false" 
       android:layout_marginRight="48sp" 
       android:layout_marginLeft="2sp" 
       android:background="@drawable/action_background_gradient" 
       android:onClick="ButtonClicked"
       ></Button>
     </LinearLayout>

     <!--... and so on for the rest of the buttons ... -->
 </LinearLayout>

我有那个机器人：在有文字=X为先的TextView只是让我可以看到，如果这是工作。当我做了调整布局，即会自行消失。 有什么简单的事情，我缺少什么？

I've got that android:text="X" in there for the first textview just so I can see if it is working. When I am done tweaking the layout, that will go away. What simple thing am I missing?

推荐答案

使用安卓重力=中心

虽然我没有看到你的code任何的EditText元素。你确定你贴权code？

although I'm not seeing any EditText element in your code. You sure you posted the right code?

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