edittext 每行都有虚线

EditText

package com.zongyi.trip.ui;


import com.zongyi.trip.R;


import android.annotation.SuppressLint;
import android.content.Context;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.DashPathEffect;
import android.graphics.Paint;
import android.graphics.PathEffect;
import android.util.AttributeSet;
import android.widget.EditText;


@SuppressLint({ "ResourceAsColor", "DrawAllocation" })
public class LinedEditText extends EditText {
//    private Paint mPaint = new Paint();


    public LinedEditText(Context context) {
        super(context);
        initPaint();
    }


    public LinedEditText(Context context, AttributeSet attrs) {
        super(context, attrs);
        initPaint();
    }


    public LinedEditText(Context context, AttributeSet attrs, int defStyle) {
        super(context, attrs, defStyle);
        initPaint();
    }


    private void initPaint() {
//        mPaint.setStyle(Paint.Style.STROKE);
////        mPaint.setColor(0x80000000);
//      mPaint.setStyle(Paint.Style.STROKE);
//      mPaint.setColor(R.color.dashed_line_color);
//        PathEffect effects = new DashPathEffect(new float[]{5,5,5,5},1);
//        mPaint.setPathEffect(effects);
    }


    @Override  protected void onDraw(Canvas canvas) {
        Paint mPaint = new Paint();
//       mPaint.setColor(0x80000000);
        mPaint.setStyle(Paint.Style.STROKE);
        mPaint.setColor(Color.LTGRAY);
        PathEffect effects = new DashPathEffect(new float[]{5,5,5,5},5);
      mPaint.setPathEffect(effects);

        int left = getLeft();
        int right = getRight();
        int paddingTop = getPaddingTop();
        int paddingBottom = getPaddingBottom();
        int paddingLeft = getPaddingLeft();
        int paddingRight = getPaddingRight();
        int height = getHeight();
        int lineHeight = getLineHeight();
        int spcingHeight = (int) getLineSpacingExtra();
        int count = (height-paddingTop-paddingBottom) / lineHeight;




        for (int i = 0; i < count; i++) {
            int baseline = lineHeight * (i+1) + paddingTop - spcingHeight/2 ;
            canvas.drawLine(left+paddingLeft, baseline, right-paddingRight, baseline, mPaint);
        }


        super.onDraw(canvas);
    }
}

package com.zongyi.trip.ui;import com.zongyi.trip.R;import android.annotation.SuppressLint;import android.content.Context;import android.graphics.Canvas;import android.graphics.Color;import android.graphics.DashPathEffect;import android.graphics.Paint;import android.graphics.PathEffect;import android.util.AttributeSet;import android.widget.EditText;@SuppressLint({ "ResourceAsColor", "DrawAllocation" })public class LinedEditText extends EditText {// private Paint mPaint = new Paint(); public LinedEditText(Context context) { super(context); initPaint(); } public LinedEditText(Context context, AttributeSet attrs) { super(context, attrs); initPaint(); } public LinedEditText(Context context, AttributeSet attrs, int defStyle) { super(context, attrs, defStyle); initPaint(); } private void initPaint() {// mPaint.setStyle(Paint.Style.STROKE);//// mPaint.setColor(0x80000000); // mPaint.setStyle(Paint.Style.STROKE); // mPaint.setColor(R.color.dashed_line_color); // PathEffect effects = new DashPathEffect(new float[]{5,5,5,5},1); // mPaint.setPathEffect(effects); } @Override protected void onDraw(Canvas canvas) { Paint mPaint = new Paint();// mPaint.setColor(0x80000000); mPaint.setStyle(Paint.Style.STROKE); mPaint.setColor(Color.LTGRAY); PathEffect effects = new DashPathEffect(new float[]{5,5,5,5},5); mPaint.setPathEffect(effects); int left = getLeft(); int right = getRight(); int paddingTop = getPaddingTop(); int paddingBottom = getPaddingBottom(); int paddingLeft = getPaddingLeft(); int paddingRight = getPaddingRight(); int height = getHeight(); int lineHeight = getLineHeight(); int spcingHeight = (int) getLineSpacingExtra(); int count = (height-paddingTop-paddingBottom) / lineHeight; for (int i = 0; i < count; i++) { int baseline = lineHeight * (i+1) + paddingTop - spcingHeight/2 ; canvas.drawLine(left+paddingLeft, baseline, right-paddingRight, baseline, mPaint); } super.onDraw(canvas); }}

<com.zongyi.trip.ui.LinedEditText
           android:id="@+id/edittext_message"
           android:layout_width="fill_parent"
           android:layout_height="200dp"
           android:lineSpacingExtra="15dp"
           android:gravity="top"
           android:textColor="#ACB6BB"
           android:textSize="18sp" />

<com.zongyi.trip.ui.LinedEditText android:id="@+id/edittext_message" android:layout_width="fill_parent" android:layout_height="200dp" android:lineSpacingExtra="15dp" android:gravity="top" android:textColor="#ACB6BB" android:textSize="18sp" />

 

转自：http://blog.csdn.net/jjaze3344/article/details/13995235