package cc.rome753.demo.view;import android.content.Context;import android.graphics.Canvas;import android.graphics.Color;import android.graphics.Paint;import android.util.AttributeSet;import android.util.Log;import android.view.MotionEvent;import android.view.View;/** * Created by rome753 on 2017/3/10 */public class TextRatingBar extends View{ //paddingLeft private int mLeft; //paddingTop private int mTop; //當前rating private int mRating; //總raring數 private int mCount; //rating文字 private String[] texts = {"小","中","大","超大"}; //相鄰raring的距離 private int mUnitSize; //bar到底部的距離 private int mYOffset; //小豎條的一半長度 private int mMarkSize; Paint paint = new Paint(); public TextRatingBar(Context context) {  this(context, null); } public TextRatingBar(Context context, AttributeSet attrs) {  this(context, attrs, 0); } public TextRatingBar(Context context, AttributeSet attrs, int defStyleAttr) {  super(context, attrs, defStyleAttr);  mCount = 4;  mRating = 0;  mMarkSize = 3; } @Override protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {  super.onMeasure(widthMeasureSpec, heightMeasureSpec);  Log.i("test", getMeasuredWidth() + " " + getMeasuredHeight());  mLeft = (getPaddingLeft()+getPaddingRight())/2;  mTop = getPaddingTop();  int barWidth = getMeasuredWidth() - 2 * mLeft;  mUnitSize = barWidth/(mCount - 1);  mYOffset = getMeasuredHeight() - getPaddingBottom(); } @Override protected void onDraw(Canvas canvas) {  paint.setStrokeWidth(2);  paint.setColor(Color.RED);  canvas.drawLine(mLeft,mYOffset,mLeft+mRating*mUnitSize,mYOffset,paint);  for(int i=0;i<mCount;i++){   paint.setColor(Color.RED);   canvas.drawLine(mLeft+i*mUnitSize,mYOffset-mMarkSize,mLeft+i*mUnitSize,mYOffset+mMarkSize,paint);   paint.setColor(mRating == i ? Color.RED : Color.BLACK);   paint.setTextSize(30);   paint.setTextAlign(Paint.Align.CENTER);   canvas.drawText(texts[i],mLeft+i*mUnitSize,mTop,paint);  }  paint.setColor(Color.GRAY);  canvas.drawLine(mLeft+mRating*mUnitSize,mYOffset,mLeft+(mCount-1)*mUnitSize,mYOffset,paint);  canvas.drawCircle(mLeft+mRating*mUnitSize,mYOffset,10,paint); } @Override public boolean onTouchEvent(MotionEvent event) {  if(event.getAction() == MotionEvent.ACTION_DOWN || event.getAction() == MotionEvent.ACTION_MOVE){   float x = event.getX();   for(int i=0;i<mCount;i++){    float distance = mLeft+i*mUnitSize - x;    if(Math.abs(distance) < 100){     setRating(i);     if(onRatingListener != null){      onRatingListener.onRating(mRating);     }     break;    }   }  }  return true; } public void setRating(int rating) {  mRating = rating;  invalidate(); } private OnRatingListener onRatingListener; public void setOnRatingListener(OnRatingListener onRatingListener) {  this.onRatingListener = onRatingListener; } interface OnRatingListener{  void onRating(int rating); }}

 <cc.rome753.demo.view.TextRatingBar  android:paddingTop="20dp"  android:paddingLeft="40dp"  android:paddingRight="40dp"  android:paddingBottom="35dp"  android:layout_width="match_parent"  android:layout_height="70dp" />