跑马灯效果

<TextView    android:id="@+id/textview_set"    android:layout_width="match_parent"    android:layout_height="wrap_content"    android:singleLine="true"    android:ellipsize="marquee"    android:marqueeRepeatLimit="marquee_forever"    android:text="11111111111111111111111"    />

mTextView.setSelected(true);