TextView Marquee Doesn't Work

问题

I've tried all, I can think of to get this marquee effect to work. Here is my xml:

<TextView android:id="@+id/curPlaying"
    android:layout_width="320dp"
    android:layout_height="wrap_content"
    android:layout_alignParentTop="true"
    android:ellipsize="marquee"
    android:scrollHorizontally="true"
    android:singleLine="true"
    android:marqueeRepeatLimit ="marquee_forever"
    android:focusable="true"
    android:focusableInTouchMode="true" 
    android:textColor="#83A602"
    android:textSize="20dp"
    android:text="Nothing Loaded" />

And I'm setting it as selected in code. The only thing why I think it might not be working is the text is getting modified by the code at relatively frequent intervals.

Help?

回答1:

You could checkout Marquee feature of TextView in Android 1.1R1, that explains certains ways where marquee can have a problem in getting work. ScrollTextView - scrolling TextView for Android might be a good option.

回答2:

Hi Please try below code it is working fine for me...

<TextView
            android:id="@+id/mywidget"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_alignParentRight="true"
            android:ellipsize="marquee"
            android:fadingEdge="horizontal"
            android:lines="1"
            android:marqueeRepeatLimit="marquee_forever"
            android:scrollHorizontally="true"
            android:text="Simple application that shows how to use marquee, with a long text"
            android:textColor="#ff4500" />

TextView tv = (TextView) this.findViewById(R.id.mywidget);
        tv.setSelected(true); // Set focus to the textview

It is working on My Samsung Galaxy ACE Phone.

回答3:

I post because there are no accepted answers.... and helps future visitors who come to Stack Overflow for answers.

  public class AlwaysMarqueeTextView extends TextView {

  public AlwaysMarqueeTextView(Context context) {
  super(context);
  }

  public AlwaysMarqueeTextView(Context context, AttributeSet attrs) {
  super(context, attrs);
  }

  public AlwaysMarqueeTextView(Context context, AttributeSet attrs, int defStyleAttr) {
  super(context, attrs, defStyleAttr);
  }

  @TargetApi(Build.VERSION_CODES.LOLLIPOP)
  public AlwaysMarqueeTextView(Context context, AttributeSet attrs, int defStyleAttr, int defStyleRes) {
  super(context, attrs, defStyleAttr, defStyleRes);
  }

  @Override
  public boolean isFocused() {
  return true;
  }
  }

activity.xml

<ivar.kov.util.textViewUtil.AlwaysMarqueeTextView
  android:id="@+id/artist_tv2"
  android:layout_width="wrap_content"
  android:layout_height="wrap_content"
  android:ellipsize="marquee"
  android:focusable="true"
  android:focusableInTouchMode="true"
  android:marqueeRepeatLimit="marquee_forever"
  android:scrollHorizontally="true"
  android:singleLine="true"
  android:text="@string/appbar_scrolling_view_behavior"/>

来源：https://stackoverflow.com/questions/10458844/textview-marquee-doesnt-work

标签

android

textview

marquee