跑馬燈在android系統

Question

我想用字幕的功能在我的Android應用程序進行滾動和正在使用此代碼爲實現這一目標：

<TextView 
    android:id="@+id/marqueetext" 
    android:layout_width="wrap_content" 
    android:layout_height="wrap_content" 
    android:ellipsize="marquee" 
    android:fadingEdge="horizontal" 
    android:lines="1" 
    android:marqueeRepeatLimit="marquee_forever" 
    android:scrollHorizontally="true" 
    android:text="hello all how are you" 
    android:textColor="#ff4500" 
    /> 

MarqueeText = (TextView)ShowTheMessages.this.findViewById(R.id.marqueetext); 
     MarqueeText.setSelected(true); 

我不知道爲什麼它不working.I有經歷了許多相關的職位，但沒有找到解決辦法。請幫助我。提前感謝。

Answer 1

變化這條線，並嘗試...

android:text="hello all how are you hello all how are you hello all how are you hello all how are you" 
TextView txtView=(TextView) findViewById(R.id.marqueetext); 
txtView.setSelected(true); 

<TextView 
    android:id="@+id/marqueetext" 
    android:layout_width="wrap_content" 
    android:layout_height="wrap_content" 
    android:ellipsize="marquee" 
    android:fadingEdge="horizontal" 
    android:lines="1" 
    android:marqueeRepeatLimit="marquee_forever" 
    android:scrollHorizontally="true" 
    android:text="hello all how are you hello all how are you hello all how are you hello all how are you" 
    android:textColor="#ff4500" 
    /> 

或另一個例子是...

<RelativeLayout 
    xmlns:android="http://schemas.android.com/apk/res/android" 
    android:layout_width="fill_parent" 
    android:layout_height="fill_parent"> 
    <TextView 
     android:id="@+id/marqueetext" 
     android:layout_width="wrap_content" 
     android:layout_height="wrap_content" 
     android:layout_alignParentRight="true" 
     android:lines="1" 
     android:ellipsize="marquee" 
     android:fadingEdge="horizontal" 
     android:marqueeRepeatLimit="marquee_forever" 
     android:scrollHorizontally="true" 
     android:textColor="#ff4500" 
     android:text="hello all how are you hello all how are you hello all how are you hello all how are you hello all how are you" /> 
</RelativeLayout> 

Answer 2

android:singleLine="true" 
android:ellipsize="marquee" 

是唯一必需的屬性，甚至滾動與layout_width=0dp

這裏定義layout_weight作品是一些示例代碼：

<TextView 
      android:id="@+id/scroller" 
      android:singleLine="true" 
      android:ellipsize="marquee" 
      android:textAppearance="?android:attr/textAppearanceLarge" 
      android:textColor="#FFFFFF" 
      android:text="Some veryyyyy long text with all the characters that cannot fit in screen, it so sad :(that I will not scroll" 
      android:layout_marginLeft="4dp" 
      android:layout_weight="3" 
      android:layout_width="0dp" 
      android:layout_height="wrap_content" 
      /> 

，但最重要的是的TextView應該得到選擇那你已經完成了你的代碼。

希望它能幫助你。

Answer 3

嘗試

android:singleLine="true" 

，而不是

android:lines="1" 

這將解決您的問題。