解决方法
创建自己的自定义EditText控件
这是我为你做的一个例子：
选中后,您必须更改mPaint.setColor(Color.GREEN);另一种颜色
public class CustomEditText extends EditText{
private Rect mRect;
private Paint mPaint;
int widthMsSize;
int heightMsSize ;
// we need this constructor for LayoutInflater
public CustomEditText(Context context,AttributeSet attrs) {
super(context,attrs);
mPaint = new Paint();
mPaint.setStyle(Paint.Style.STROKE);
mPaint.setStrokeWidth(5);
mPaint.setColor(Color.GREEN);
System.out.println("constructor");
}
protected void onMeasure(final int widthMeasureSpec,final int heightMeasureSpec) {
// Extract the Ms (MesaureSpec) parameters
widthMsSize = MeasureSpec.getSize(widthMeasureSpec);
heightMsSize = MeasureSpec.getSize(heightMeasureSpec);
System.out.println("on measure");
// Satisfy contract by calling setMeasuredDimension
setMeasuredDimension(widthMsSize,heightMsSize);
}
protected void onDraw(Canvas canvas) {
canvas.drawLine(5,heightMsSize-10,widthMsSize-5,mPaint); //draw underline
canvas.drawLine(8,8,heightMsSize-20,mPaint); //draw left corner
canvas.drawLine(widthMsSize-8,widthMsSize-8,mPaint); //draw right corner
super.onDraw(canvas);
}
}
main.xml中
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical" >
<com.example.testanimationfadeinfadeout.CustomEditText
android:id="@+id/textedit"
android:layout_width="228dp"
android:layout_height="41dp"
android:ems="10"
android:hint="color is changed" />
</LinearLayout>
