Canvas 绘制安卓机器人

「爱情、让人受尽委屈。」 2022-05-26 13:14 221阅读 0赞

话不多说，先上照片  
![这里写图片描述][70]  
**MainActivity.class**

**activity\_main.xml**  
*这里只有一点需要注意，布局是帧布局—-FramLayout*

<?xml version="1.0" encoding="utf-8"?>
    <FrameLayout
        android:id="@+id/framelayout"
        xmlns:android="http://schemas.android.com/apk/res/android"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:orientation="vertical"
    
        ></FrameLayout>

方法二，自适应  
![这里写图片描述][70 1]  
**Main2Activity.java**

package com.jsjrjsb1504.sdut.gesture;
    
    import android.content.Context;
    import android.graphics.*;
    import android.support.v7.app.AppCompatActivity;
    import android.os.Bundle;
    import android.view.View;
    import android.widget.*;
    
    public class Main2Activity extends AppCompatActivity {
        
    
        float rationpieceOfWidth = 0;
    
        @Override
        protected void onCreate(Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);
            setContentView(R.layout.activity_main2);
    
            FrameLayout mFrameLayout = findViewById(R.id.framelayout);
            //将当前的布局和内部类相关联
            mFrameLayout.addView(new Myview(this));
        }
    
        //内部类用于绘画
        public class Myview extends View {
        
    
    //        //自定义测量
    //        @Override
    //        protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
        
    //            int widthSize = MeasureSpec.getSize(widthMeasureSpec);
    //            int widthMode = MeasureSpec.getMode(widthMeasureSpec);
    //
    //            int heightSize = MeasureSpec.getSize(heightMeasureSpec);
    //            int heightMode = MeasureSpec.getMode(heightMeasureSpec);
    //
    //            int width = Math.min(heightSize, widthSize);
    //
    //            if (widthMode == MeasureSpec.UNSPECIFIED) {
        
    //                width = heightSize;
    //            } else if (heightMode == MeasureSpec.UNSPECIFIED) {
        
    //                width = widthSize;
    //            }
    //            rationpieceOfWidth = width;
    //
    //            setMeasuredDimension(width, width);
    //        }
    
    
    
            public Myview(Context context) {
    
                super(context);
            }
    
            @Override
            protected void onDraw(Canvas canvas) {
                rationpieceOfWidth = canvas.getWidth();
                super.onDraw(canvas);
                //创建一支画笔
                Paint paint = new Paint();
                paint.setColor(Color.GREEN);
                paint.setAntiAlias(true);
                //设置画笔粗细
                paint.setStrokeWidth(2);
                //设置是否为空心
                paint.setStyle(Paint.Style.FILL_AND_STROKE);
    
                //绘制头部
                RectF mRectF_head = new RectF(rationpieceOfWidth / 4, rationpieceOfWidth / 8, rationpieceOfWidth / 4 + rationpieceOfWidth / 2, rationpieceOfWidth / 8 + rationpieceOfWidth / 2);
    
                canvas.drawArc(mRectF_head, -10, -160, false, paint); //顺时针旋转
    
    
                //天线
                paint.setColor(Color.GREEN);
                paint.setStrokeWidth(10);
                canvas.drawLine(rationpieceOfWidth / 4, 0, (rationpieceOfWidth / 4 + rationpieceOfWidth / 2) * 2 / 3, (rationpieceOfWidth / 2) * 2 / 3, paint);
                canvas.drawLine(rationpieceOfWidth / 4 + rationpieceOfWidth / 2, 0, (rationpieceOfWidth / 4 + rationpieceOfWidth / 2) * 2 / 3, (rationpieceOfWidth / 2) * 2 / 3, paint);
    
    
    //            //眼睛
                paint.setColor(Color.WHITE);
                paint.setStrokeWidth(20);
    
                canvas.drawCircle(rationpieceOfWidth * 3 / 8, rationpieceOfWidth / 4, 4, paint);
                canvas.drawCircle(rationpieceOfWidth * 5 / 8, rationpieceOfWidth / 4, 4, paint);
    
    
                paint.setStrokeWidth(2);
                paint.setColor(Color.GREEN);
    
                //身体
                canvas.drawRect(rationpieceOfWidth / 4,
                        rationpieceOfWidth / 3 + rationpieceOfWidth / 20,
                        rationpieceOfWidth / 4 + rationpieceOfWidth / 2,
                        rationpieceOfWidth * 5 / 7, paint);
                RectF rextf_body = new RectF(rationpieceOfWidth / 4, rationpieceOfWidth / 3 + rationpieceOfWidth / 10, rationpieceOfWidth / 4 + rationpieceOfWidth / 2, rationpieceOfWidth);
                canvas.drawRoundRect(rextf_body, 50, 50, paint);
                //胳膊
                RectF rectF_arm = new RectF(rationpieceOfWidth / 5 - rationpieceOfWidth / 15,
                        rationpieceOfWidth / 3,
                        rationpieceOfWidth / 4-rationpieceOfWidth/50 ,
                        rationpieceOfWidth * 5 / 7);
    
                canvas.drawRoundRect(rectF_arm, 180, 180, paint);
                rectF_arm.offset(rationpieceOfWidth/2+rationpieceOfWidth/5-rationpieceOfWidth/15,0);
                canvas.drawRoundRect(rectF_arm,180,180,paint);
    //
    //
    //
                //dialog
                paint.setColor(Color.BLACK);
                paint.setTextSize(30);
                paint.setTextAlign(Paint.Align.CENTER); //字体居中
                canvas.drawText("你是真牛逼",950,250,paint);
    //
                //腿
                paint.setColor(Color.GREEN);
                RectF rectF_foot = new RectF(rationpieceOfWidth/3,rationpieceOfWidth-rationpieceOfWidth/20,rationpieceOfWidth/3+rationpieceOfWidth/10,rationpieceOfWidth+rationpieceOfWidth/3);
                canvas.drawRoundRect(rectF_foot,180,180,paint);
                rectF_foot.offset(rationpieceOfWidth/4,0);
                canvas.drawRoundRect(rectF_foot,180,180,paint);
    
    
            }
        }
    
    }

[70]: /images/20220526/1cd70e147cac470884678e8df475cef0.png
[70 1]: /images/20220526/f90445c067604c588859698a44366b94.png