Android实现文字下方加横线

本文实例为大家分享了Android实现文字下方加横线的具体代码，供大家参考，具体内容如下

public class WhiteTextviewWithWhiteBottomLine extends LinearLayout {

private Context mContext;

public WhiteTextviewWithWhiteBottomLine(Context context) {
 this(context, null);
}

public WhiteTextviewWithWhiteBottomLine(Context context, @Nullable AttributeSet attrs) {
 this(context, attrs, 0);
}

public WhiteTextviewWithWhiteBottomLine(Context context, @Nullable AttributeSet attrs, int defStyleAttr) {
 super(context, attrs, defStyleAttr);
 mContext = context;
 initViews();
}

private TextView textView;
private View viewLine;

private void initViews() {
 View view = View.inflate(mContext, R.layout.view_textview_with_bottom_line, null);

textView = view.findViewById(R.id.tv_view_textview_with_line);
 viewLine = view.findViewById(R.id.view_view_textview_with_line);

this.addView(view);

setSelected(false);
}

public void setTextViewText(String s) {
 textView.setText(s);
}

public void setLineColor(@ColorInt int color) {
 viewLine.setBackgroundColor(color);
}

public void setSelected(boolean isSelected) {

if (isSelected) {
  viewLine.setVisibility(VISIBLE);
 } else {
  viewLine.setVisibility(GONE);
 }
}

public boolean isSelected() {
 if (viewLine.getVisibility() == View.VISIBLE) {
  return true;
 }else {
  return false;
 }
}
}

布局文件：

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">

<LinearLayout
 android:layout_width="wrap_content"
 android:layout_height="wrap_content"
 android:gravity="center"
 android:orientation="vertical">

<TextView
  android:id="@+id/tv_view_textview_with_line"
  android:layout_width="wrap_content"
  android:layout_height="wrap_content"
  android:gravity="center"
  android:padding="10dp"
  android:text="测试"
  android:textColor="@color/white"
  android:textSize="12sp" />

<View
  android:id="@+id/view_view_textview_with_line"
  android:layout_width="30dp"
  android:layout_height="1dp"
  android:layout_gravity="center_horizontal"
  android:background="@color/white" />

</LinearLayout>

</LinearLayout>

如果想改变文字、线的颜色这些，直接修改布局文件中的内容。

来源：https://blog.csdn.net/Jermmy1207/article/details/107482811