activity_main.xml:
<TextView
android:id="@+id/txt"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:singleLine="true"
android:ellipsize="marquee"
android:text="大王让我来巡山,我把人间转一转,打起我的鼓,敲起我的罗,生活充满节奏感……"
android:background="#000000"
android:textSize="20sp"
android:textColor="#ffffff"
android:padding="5dp"
android:focusableInTouchMode="true"
android:marqueeRepeatLimit="marquee_forever"
android:focusable="true"/>
Mainactivity.java
public class MainActivity extends AppCompatActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
TextView t=(TextView)findViewById(R.id.txt);
t.setSelected(true); //切换背景显示
}
}
需要在mainactivity.java中增加最后两行代码来使效果呈现