Android TextView autoLink 改变颜色，去掉link下划线

更改颜色：xml中使用textColorLink属性

删除下划线：自定义一个继承UnderlineSpan 的子类，重写updateDrawState方法在其中处理

 

xml界面代码： 

<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".MainActivity">

    <TextView
        android:id="@+id/txt_link"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="https://www.baidu.com/"
        android:autoLink="web"
        android:textColorLink="@color/colorRed"
        android:textIsSelectable="true"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintLeft_toLeftOf="parent"
        app:layout_constraintRight_toRightOf="parent"
        app:layout_constraintTop_toTopOf="parent" />

</androidx.constraintlayout.widget.ConstraintLayout>

 Activity界面代码：

public class MainActivity extends AppCompatActivity {

    TextView txt_link ;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        txt_link = findViewById(R.id.txt_link);
        NoUnderlineSpan mNoUnderlineSpan = new NoUnderlineSpan();
        if (txt_link.getText() instanceof Spannable) {
            Spannable s = (Spannable) txt_link.getText();
            s.setSpan(mNoUnderlineSpan, 0, s.length(), Spanned.SPAN_MARK_MARK);
        }
    }


    public class NoUnderlineSpan extends UnderlineSpan {

        @Override
        public void updateDrawState(TextPaint ds) {
            ds.setColor(ds.linkColor);
            ds.setUnderlineText(false);
        }
    }
}

效果：

ps: 这个写法在databinding的双向绑定无效，文字内容要用setText的方式设置