Android--去除EditText边框，加入下划线

<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>  

当中background，能够设置成其它颜色等

textColor不一定要是null，能够设置字体颜色

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();
         // 依据行数循环画线
         for (int i = 0; i < lineCount; i++) {
             int lineY = (i + 1) * lineHeight;
             canvas.drawLine(0, lineY, this.getWidth(), lineY, paint);
         }

     }

 }