新建一个CustomView继承TextView并实现4个构造方法

public class MyTextView extends TextView{
    public MyTextView(Context context) {
        super(context);
    }
    public MyTextView(Context context, AttributeSet attrs) {
        super(context, attrs);
    }
    public MyTextView(Context context, AttributeSet attrs, int defStyleAttr) {
        super(context, attrs, defStyleAttr);
    }
    public MyTextView(Context context, AttributeSet attrs, int defStyleAttr, int defStyleRes) {
        super(context, attrs, defStyleAttr, defStyleRes);
    }
    //控件获取焦点
    @Override
    public boolean isFocused() {
        return true;
    }
}

XML布局内控件

//定义两个组定义的TextView
<com.example.customview.MyTextView
    android:id="@+id/textView1"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:ellipsize="marquee"
    android:focusable="true"
    android:focusableInTouchMode="true"
    android:singleLine="true"
    android:text="@string/niu" />
<com.example.customview.MyTextView
    android:id="@+id/textView2"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_below="@+id/textView1"
    android:ellipsize="marquee"
    android:focusable="true" 
   android:focusableInTouchMode="true"
    android:singleLine="true"
    android:text="@string/niu" />