LinedEditText.java

package com.adisayoga.earthquake.utils;

import android.content.Context;
import android.graphics.Canvas;
import android.graphics.Paint;
import android.graphics.Rect;
import android.util.AttributeSet;
import android.widget.EditText;

/**
 * A custom EditText that draws lines between each line of text that is displayed.
 */
public class LinedEditText extends EditText {
    private final Rect mRect;
    private final Paint mPaint;

    // we need this constructor for LayoutInflater
    public LinedEditText(Context context, AttributeSet attrs) {
        super(context, attrs);
        
        mRect = new Rect();
        mPaint = new Paint();
        mPaint.setStyle(Paint.Style.STROKE);
        mPaint.setColor(0x80808080);
    }
    
    @Override
    protected void onDraw(Canvas canvas) {
        int count = getLineCount();
        Rect r = mRect;
        Paint paint = mPaint;

        for (int i = 0; i < count; i++) {
            int baseline = getLineBounds(i, r);

            canvas.drawLine(r.left, baseline + 5, r.right, baseline + 5, paint);
        }

        super.onDraw(canvas);
    }
}