更改Android手機上的字體大小後，在textView內啓用滾動條

Question

當我在設備上放大字體時，發生此問題，之後我不再在我的文本視圖中看到垂直滾動條。當我將字體大小更改爲小時，滾動條出現。下面是我的XML佈局看起來怎麼樣：

1.   <ScrollView 
          android:id="@+id/MyScrollView" 
          android:layout_height="150px" 
          android:layout_width="fill_parent"> 
         <TextView 
          android:id="@+id/title" 
          android:layout_width="wrap_content" 
          android:layout_height="wrap_content" 
          android:layout_centerHorizontal="true" android:text="xxasdasdasdxxasdasdasdxxasdasdasdxxasdasdasdxxasdasdasdxxasdasdasdxxasdasdasdxxasdasdasdxxasdasdasdxxasdasdasdxxasdasdasdxxasdasdasdxxasdasdasdxxasdasdasdxxasdasdasdxxasdasdasdxxasdasdasd." 
          android:textSize="24sp" 
          android:layout_margin="20dp" 
          android:ellipsize="marquee" 
          android:marqueeRepeatLimit="marquee_forever" 
          android:maxLines = "20" 
          android:gravity="bottom" 
          android:scrollbars="vertical" 
          android:scrollbarStyle="insideOverlay" 
          android:textColor="#676767" /> 
         <TextView 
          android:id="@+id/tv_link" 
          android:layout_width="wrap_content" 
          android:layout_height="wrap_content" 
          android:layout_below="@+id/tv_title" 
          android:layout_centerHorizontal="true" 
          android:layout_margin="5dp" 
          android:padding="5dp" 
          android:textSize="24sp" 
          android:text="Enroll Now" 
          android:textColor="#FF0C7CC0" /> 
         </ScrollView> 
   

   代碼工作正常，但只要我改變了字體大小設備上的滾動條消失

2. 這裏是我我Activity類裏面做：

   ScrollView scroller = (ScrollView) findViewById(R.id.ScrollView01); 
       TextView tv = (TextView) findViewById(R.id.title); 
       tv.setMovementMethod(new ScrollingMovementMethod()); 
   

Answer 1

應該有一個佈局將包含您的文字瀏覽，滾動視圖不能直接控制多個視圖。滾動型只能包含單一視圖，你可以做這樣的：

<ScrollView 
       android:id="@+id/MyScrollView" 
       android:layout_height="150px" 
       android:layout_width="fill_parent"> 
      <RealtiveLayout 
       android:layout_width="wrap_content" 
       android:layout_height="wrap_content"> 
      <TextView 
       android:id="@+id/title" 
       android:layout_width="wrap_content" 
       android:layout_height="wrap_content" 
       android:layout_centerHorizontal="true" android:text="xxasdasdasdxxasdasdasdxxasdasdasdxxasdasdasdxxasdasdasdxxasdasdasdxxasdasdasdxxasdasdasdxxasdasdasdxxasdasdasdxxasdasdasdxxasdasdasdxxasdasdasdxxasdasdasdxxasdasdasdxxasdasdasdxxasdasdasd." 
       android:textSize="24sp" 
       android:layout_margin="20dp" 
       android:ellipsize="marquee" 
       android:marqueeRepeatLimit="marquee_forever" 
       android:maxLines = "20" 
       android:gravity="bottom" 
       android:scrollbars="vertical" 
       android:scrollbarStyle="insideOverlay" 
       android:textColor="#676767" /> 
      <TextView 
       android:id="@+id/tv_link" 
       android:layout_width="wrap_content" 
       android:layout_height="wrap_content" 
       android:layout_below="@+id/title" 
       android:layout_centerHorizontal="true" 
       android:layout_margin="5dp" 
       android:padding="5dp" 
       android:textSize="24sp" 
       android:text="Enroll Now" 
       android:textColor="#FF0C7CC0" /> 
</RealtiveLayout> 
      </ScrollView>