Android studio实现滑动开关的代码_F11 - 专业站长和开发者的学习网站

大家好，今天刚学会使用Android Studio实现滑动开关的效果，自己感觉还可以，和大家分享一下，如果觉得可以的可以拿去，然后再给我点个赞，谢谢。本人也是学Android studiok开发不久，是个菜鸟，各位大佬觉得有不好的地方，可以讨论一下，共同学习，一起进步。

实现效果

下面是代码，代码写的比较粗糙，注释没有写的很好，需要用的可以自己移植一下

package com.example.biansheng2;
 
import android.content.Context;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Paint;
import android.graphics.RectF;
import android.graphics.Typeface;
import android.util.AttributeSet;
import android.view.MotionEvent;
import android.view.View;
 
import androidx.annotation.Nullable;
 
/**
 * 用于选择手动模式还是路线规划模式
 */
public class ModelSelectView extends View {
 Paint backPaint = new Paint();//背景画笔
 Paint facePaint = new Paint();//表面视图画笔
 Paint colorPaint1 = new Paint();//绘制红色和蓝色
 Paint colorPaint2 = new Paint();//绘制橙色
 Paint colorPaint3 = new Paint();//绘制灰色
 Paint handFont = new Paint();//手动控制模式字体
 Paint routeFont = new Paint();//路线规划模式字体
 
 boolean modelFlag = false;//false表示为手动控制模式,true表示为路线规划模式
 
 RectF mRectF1 = new RectF(150, 840, 580, 960);
 
 int x = 150, y = 900;//得到手指再控件上移动的坐标
 
 public ModelSelectView(Context context, @Nullable AttributeSet attrs) {
  super(context, attrs);
 }
 
 @Override
 protected void onDraw(Canvas canvas) {
  super.onDraw(canvas);
  paintInit();
  canvas.drawRect(mRectF1, backPaint);
  canvas.drawCircle(150, 900, 60, backPaint);
  canvas.drawCircle(580, 900, 60, backPaint);
 
  if (!modelFlag){
   canvas.drawCircle(150, 900, 60, facePaint);
   canvas.drawRect(150,840,x,960,facePaint);
 
   //设置手动控制字体可见
   handFont.setAlpha(255);
   //设置路线规划字体不可见
   routeFont.setAlpha(0);
  }else {
   canvas.drawCircle(580, 900, 60, facePaint);
   canvas.drawRect(x,840,580,960,facePaint);
 
   //设置手动控制字体不可见
   handFont.setAlpha(0);
   //设置路线规划字体可见
   routeFont.setAlpha(255);
  }
 
  canvas.drawText("手动控制",250,915,handFont);
  canvas.drawText("路线规划",250,915,routeFont);
 
  canvas.drawCircle(x, y, 44, backPaint);
  canvas.drawCircle(x, y, 40, colorPaint2);
  canvas.drawCircle(x, y, 47, colorPaint3);
 
 
 }
 
 
 private void paintInit() {
  if (!modelFlag) {
   backPaint.setAntiAlias(true);
   backPaint.setColor(Color.parseColor("#ff00b5eb"));
 
   facePaint.setColor(Color.parseColor("#D81B60"));
   facePaint.setAntiAlias(true);
 
 
  }else {
   backPaint.setAntiAlias(true);
   backPaint.setColor(Color.parseColor("#D81B60"));
 
   facePaint.setColor(Color.parseColor("#ff00b5eb"));
   facePaint.setAntiAlias(true);
 
 
  }
 
 
  colorPaint2.setAntiAlias(true);
  colorPaint2.setColor(Color.parseColor("#FF6407"));
 
  colorPaint1.setAntiAlias(true);
  colorPaint1.setColor(Color.BLUE);
 
  colorPaint3.setColor(Color.WHITE);
  colorPaint3.setAntiAlias(true);
  colorPaint3.setStyle(Paint.Style.STROKE);
  colorPaint3.setStrokeWidth(5);
 
  Typeface font = Typeface.create(Typeface.DEFAULT_BOLD,Typeface.BOLD_ITALIC);
  handFont.setTypeface(font);
  handFont.setColor(Color.WHITE);
  handFont.setAntiAlias(true);
  handFont.setTextSize(50);
 
  routeFont.setTypeface(font);
  routeFont.setColor(Color.WHITE);
  routeFont.setAntiAlias(true);
  routeFont.setTextSize(50);
 
 
 }
 
 @Override
 public boolean onTouchEvent(MotionEvent event) {
  switch (event.getAction()) {
   case MotionEvent.ACTION_DOWN:
 
    break;
 
   case MotionEvent.ACTION_MOVE:
    int getX = (int) event.getX();
    int getY = (int) event.getY();
 
    //判断得到的坐标是否在视图范围之内
    if (getX >= 150 && getX <= 580 && getY >= 840 && getY <= 960) {
      x = getX;
      y = 900;
    }
 
    break;
    case MotionEvent.ACTION_UP:
     int getX1 = (int) event.getX();
     int getY1 = (int) event.getY();
     //判断是否在控件内
     if (getY1 >= 810 && getY1 <= 990) {
       if (getX1 <= 280) {
        x = 150;
        modelFlag = false;
       } else if (getX1 >= 443) {
        x = 580;
        modelFlag = true;
       } else {
        if (!modelFlag) {
         x = 150;
         modelFlag = false;
        } else {
         x = 580;
         modelFlag = true;
        }
       }
     }
     break;
  }
  invalidate();//刷新界面
  return true;
 }
}