<span style="font-family: arial, helvetica, sans-serif;"><?xml version="1.0" encoding="utf-8"?> </span>
<linearlayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
>
<!--注意名称 -->
<com.marine.study.lineedittext
android:id="@+id/myedit"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
style="?android:attr/textviewstyle"
android:background="@null"
android:textcolor="@null"
/>
</linearlayout>
其中background，可以设置成其他颜色等
textcolor不一定要是null，可以设置字体颜色
加下划线
public class lineedittext extends edittext {
// 画笔 用来画下划线
private paint paint;
public lineedittext(context context, attributeset attrs) {
super(context, attrs);
paint = new paint();
paint.setstyle(paint.style.stroke);
paint.setcolor(color.red);
// 开启抗锯齿 较耗内存
paint.setantialias(true);
}
@override
protected void ondraw(canvas canvas) {
super.ondraw(canvas);
// 得到总行数
int linecount = getlinecount();
// 得到每行的高度
int lineheight = getlineheight();
// 根据行数循环画线
for (int i = 0; i < linecount; i++) {
int liney = (i + 1) * lineheight;
canvas.drawline(0, liney, this.getwidth(), liney, paint);
}
}
转载：http://blog.csdn.net/chaoyu168/article/details/50698197