连线的问题就交给薄荷了

app/src/main/AndroidManifest.xml

@@ -15,6 +15,6 @@
                 <category android:name="android.intent.category.LAUNCHER" />
             </intent-filter>
         </activity>
+        <activity android:name=".activity.Edit" />
     </application>
-
 </manifest>

app/src/main/java/com/muqingedit/MainActivity.java

@@ -1,22 +1,19 @@
 package com.muqingedit;
+
+import android.content.Intent;
 import android.os.Bundle;
-import android.widget.Button;
-import android.widget.FrameLayout;
 
 import androidx.appcompat.app.AppCompatActivity;
 
+import com.muqingedit.activity.Edit;
+
 public class MainActivity extends AppCompatActivity {
-    FrameLayout view;
     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
-        setContentView(R.layout.huabu);
-        view = findViewById(R.id.view);
-
-        //绘制一个房间
-        fanjian button = new fanjian(this)
-                .setLayoutParams(200, 200)
-                .setXY(100,100);
-        view.addView(button);
+        setContentView(R.layout.activity_main);
+        Intent intent = new Intent(this, Edit.class);
+        startActivity(intent);
+        finish();
     }
 }

app/src/main/java/com/muqingedit/activity/ActivityFragment.java

@@ -0,0 +1,25 @@
+package com.muqingedit.activity;
+import android.view.MenuItem;
+import androidx.annotation.NonNull;
+import androidx.appcompat.app.AppCompatActivity;
+
+import com.muqingedit.R;
+public class ActivityFragment extends AppCompatActivity {
+    @Override
+    public boolean onOptionsItemSelected(@NonNull MenuItem item) {
+        if (item.getItemId() == android.R.id.home) {
+            finish();
+        }
+        return super.onOptionsItemSelected(item);
+    }
+    public void setToolbar() {
+        setSupportActionBar(findViewById(R.id.toolbar));
+        getSupportActionBar().setDisplayHomeAsUpEnabled(true);
+    }
+
+    @Override
+    public void setContentView(int view) {
+        super.setContentView(view);
+        setToolbar();
+    }
+}

app/src/main/java/com/muqingedit/activity/Edit.java

@@ -0,0 +1,40 @@
+package com.muqingedit.activity;
+
+import android.annotation.SuppressLint;
+import android.content.Context;
+import android.os.Bundle;
+import android.view.View;
+import android.widget.FrameLayout;
+
+import androidx.annotation.Nullable;
+
+import com.muqingedit.R;
+import com.muqingedit.fanjian;
+import com.muqingedit.xian;
+
+public class Edit extends ActivityFragment {
+    @SuppressLint("StaticFieldLeak")
+    public static FrameLayout frameLayout;
+    @Override
+    protected void onCreate(@Nullable Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.edit);
+        frameLayout = findViewById(R.id.view);
+        //绘制一个房间
+        findViewById(R.id.button).setOnClickListener(view -> {
+            fanjian button = new fanjian(Edit.this)
+                    .setLayoutParams(200, 200)
+                    .setXY(100, 100);
+            frameLayout.addView(button);
+        });
+    }
+
+    public static void addView(View view) {
+        frameLayout.addView(view);
+    }
+
+    public static Context getContext() {
+        return frameLayout.getContext();
+    }
+
+}

app/src/main/java/com/muqingedit/fanjian.java

@@ -4,72 +4,155 @@ import android.annotation.SuppressLint;
 import android.content.Context;
 import android.graphics.Canvas;
 import android.graphics.Color;
+import android.graphics.Paint;
+import android.view.GestureDetector;
 import android.view.MotionEvent;
 import android.view.View;
 import android.view.ViewGroup;
+import android.widget.FrameLayout;
+
+import androidx.annotation.NonNull;
+
+import com.muqingedit.activity.Edit;
+
+public class fanjian extends FrameLayout {
+
+    public static int id = 0;
+
+    private int X, Y;
 
-public class fanjian extends View {
     public fanjian(Context context) {
         super(context);
+        setId(id++);
         init();
     }
+
+    private class dian extends View {
+        xian xian;
+        public dian(Context context) {
+            super(context);
+/*            ViewGroup.LayoutParams layoutParams = fanjian.this.getLayoutParams();
+            dian.this.setLayoutParams(
+                    new ViewGroup.LayoutParams(layoutParams.width / 2,
+                            layoutParams.width / 2));*/
+        }
+        @Override
+        protected void onDraw(Canvas canvas) {
+            super.onDraw(canvas);
+            Paint paint = new Paint();
+            paint.setColor(Color.WHITE);
+            paint.setStyle(Paint.Style.FILL);
+            float cx = getWidth() / 2f; // 圆心 x 坐标
+            float cy = getHeight() / 2f; // 圆心 y 坐标
+            float radius = 26F; // 圆的半径
+            canvas.drawCircle(cx, cy, radius, paint); // 绘制圆点
+        }
+        @Override
+        public boolean onTouchEvent(MotionEvent event) {
+            switch (event.getAction()) {
+                case MotionEvent.ACTION_DOWN:
+                    //在视图上面添加一条线
+                    int[] location = new int[2];
+                    getLocationOnScreen(location);
+                    int x = location[0] + getWidth() / 2;
+                    int y = location[1] - getHeight() / 2;
+                    xian = new xian(getContext()).createNewLine(x,
+                            y);
+                    return true;
+                case MotionEvent.ACTION_MOVE:
+                    //绘制线
+                    xian.updateCurrentLine(event.getRawX(), event.getRawY());
+                    return true;
+                case MotionEvent.ACTION_UP:
+                    //删除线
+                    xian.clearCurrentLine();
+                    Edit.frameLayout.removeView(xian);
+                    xian = null;
+                    return true;
+            }
+
+            return super.onTouchEvent(event);
+        }
+
+    }
+
+    private GestureDetector gestureDetector;
+    private boolean Long = false;
     private void init() {
         // 设置背景颜色为红色
         setBackgroundColor(Color.RED);
         // 设置视图的尺寸为100x100像素
         setLayoutParams(new ViewGroup.LayoutParams(0, 0));
         // 进行初始化操作，例如设置背景颜色、文字等
+        gestureDetector = new GestureDetector(getContext(), new GestureDetector.SimpleOnGestureListener() {
+            @Override
+            public void onLongPress(@NonNull MotionEvent e) {
+                Long = !Long;
+                // 处理长按事件
+            }
+            @Override
+            public boolean onScroll(@NonNull MotionEvent e1, @NonNull MotionEvent e2, float distanceX, float distanceY) {
+                if (Long) {
+                } else {
+                    Y = (int) (e2.getY() - e1.getY());
+                    X = (int) (e2.getX() - e1.getX());
+                    animate().xBy(X).yBy(Y).setDuration(0).start();
+                }
+                return true;
+            }
+        });
     }
 
+    @Override
+    public boolean onTouchEvent(MotionEvent event) {
+        gestureDetector.onTouchEvent(event);
+        return true;
+    }
+
+    @SuppressLint("DrawAllocation")
     @Override
     protected void onDraw(Canvas canvas) {
         super.onDraw(canvas);
         // 在此处进行自定义的绘制操作，例如绘制图形、文本等
     }
 
-    public fanjian setLayoutParams(int a,int b) {
+    public fanjian setLayoutParams(int a, int b) {
         setLayoutParams(new ViewGroup.LayoutParams(a, b));
         return this;
     }
 
-
-
-    private int X;
-    private int Y;
-
-    @SuppressLint("ClickableViewAccessibility")
-    @Override
-    public boolean onTouchEvent(MotionEvent event) {
-        switch (event.getActionMasked()) {
-            case MotionEvent.ACTION_DOWN:
-                // 在按下事件中，记录按下时的位置
-                X = (int) event.getX();
-                Y = (int) event.getY();
-                break;
-
-            case MotionEvent.ACTION_MOVE:
-                // 在移动事件中，计算偏移量
-                int dx = (int) event.getX() - X;
-                int dy = (int) event.getY() - Y;
-                // 平滑移动视图
-                animate().xBy(dx).yBy(dy).setDuration(0).start();
-                break;
-        }
-        return true;
-    }
+/*
     @Override
     public float getX() {
-        return X;
+        return this.X;
     }
 
     @Override
     public float getY() {
-        return Y;
+        return this.Y;
+    }
+*/
+
+    public String getXY() {
+        return X + ":" + Y;
     }
 
     public fanjian setXY(int a, int b) {
         setX(a);
         setY(b);
+        addView(new dian(getContext()));
         return this;
     }
+
+    @Override
+    public void setX(float x) {
+        super.setX(x);
+        X = (int) x;
+    }
+    @Override
+    public void setY(float y) {
+        super.setY(y);
+        Y = (int) y;
+    }
+
 }

app/src/main/java/com/muqingedit/gj.java

@@ -0,0 +1,12 @@
+package com.muqingedit;
+
+import android.util.Log;
+
+public class gj {
+    public static void sc(Object obj) {
+        if (obj == null) {
+            obj = "nnull";
+        }
+        Log.d("编辑器" , obj.toString());
+    }
+}

app/src/main/java/com/muqingedit/xian.java

@@ -0,0 +1,56 @@
+package com.muqingedit;
+
+import android.annotation.SuppressLint;
+import android.content.Context;
+import android.graphics.Canvas;
+import android.graphics.Color;
+import android.graphics.Paint;
+import android.view.MotionEvent;
+import android.view.View;
+
+import com.muqingedit.activity.Edit;
+
+@SuppressLint("ViewConstructor")
+public class xian extends View {
+    private Paint pointPaint;
+    private Paint linePaint;
+    private float currentX, currentY;
+    private float startX, startY;
+
+    public xian(Context context) {
+        super(context);
+        init();
+    }
+
+    private void init() {
+        pointPaint = new Paint();
+        pointPaint.setColor(Color.RED);
+        pointPaint.setStyle(Paint.Style.FILL);
+
+        linePaint = new Paint();
+        linePaint.setColor(Color.BLACK);
+        linePaint.setStrokeWidth(5f);
+    }
+
+    public xian createNewLine(float x, float y) {
+        startX = x;startY = y;currentX = x;currentY = y;
+        Edit.addView(this);
+        invalidate();//创建一个新的线
+        return this;
+    }
+    public void updateCurrentLine(float x, float y) {
+        currentX = x;currentY = y;
+        invalidate();//绘制中
+    }
+    public void clearCurrentLine() {
+        currentX = startX;currentY = startY;
+        invalidate();//关闭绘制
+    }
+
+    @Override
+    protected void onDraw(Canvas canvas) {
+        super.onDraw(canvas);
+        canvas.drawCircle(startX, startY, 10f, pointPaint);//绘制初始的点
+        canvas.drawLine(startX, startY, currentX, currentY, linePaint);//绘制线
+    }
+}

app/src/main/res/layout/activity_main.xml

@@ -1,7 +1,8 @@
 <?xml version="1.0" encoding="utf-8"?>
-<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+<androidx.appcompat.widget.LinearLayoutCompat xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:tools="http://schemas.android.com/tools"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
     tools:context=".MainActivity">
-</LinearLayout>
+
+</androidx.appcompat.widget.LinearLayoutCompat>

app/src/main/res/layout/edit.xml

@@ -0,0 +1,35 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    android:orientation="vertical">
+
+    <androidx.appcompat.widget.Toolbar
+        android:id="@+id/toolbar"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content" />
+
+    <FrameLayout
+        android:id="@+id/view"
+        android:layout_width="match_parent"
+        android:layout_height="0dp"
+        android:layout_weight="1"/>
+
+    <androidx.coordinatorlayout.widget.CoordinatorLayout
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content">
+        <com.google.android.material.bottomappbar.BottomAppBar
+            android:id="@+id/bottomAppBar"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:layout_gravity="bottom"
+            app:menu="@menu/bottom_app_bar"/>
+        <com.google.android.material.floatingactionbutton.FloatingActionButton
+            android:id="@+id/button"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            app:srcCompat="@drawable/ic_launcher_foreground"
+            app:layout_anchor="@id/bottomAppBar" />
+    </androidx.coordinatorlayout.widget.CoordinatorLayout>
+</LinearLayout>

app/src/main/res/layout/huabu.xml

@@ -1,21 +1,15 @@
 <?xml version="1.0" encoding="utf-8"?>
-<androidx.appcompat.widget.LinearLayoutCompat xmlns:android="http://schemas.android.com/apk/res/android"
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
     android:layout_width="match_parent"
-    android:layout_height="match_parent"
-    android:orientation="vertical"
-    xmlns:app="http://schemas.android.com/apk/res-auto">
-    <com.google.android.material.appbar.MaterialToolbar
+    android:layout_height="match_parent">
+
+    <androidx.appcompat.widget.Toolbar
+        android:id="@+id/toolbar"
         android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        app:title="@string/app_name"/>
+        android:layout_height="wrap_content" />
+
     <FrameLayout
         android:id="@+id/view"
         android:layout_width="match_parent"
-        android:layout_height="match_parent" >
-
-        <TextView
-            android:layout_width="match_parent"
-            android:layout_height="match_parent"
-            android:text="@string/app_name" />
-    </FrameLayout>
-</androidx.appcompat.widget.LinearLayoutCompat>
+        android:layout_height="match_parent" />
+</LinearLayout>

app/src/main/res/menu/bottom_app_bar.xml

@@ -0,0 +1,24 @@
+<?xml version="1.0" encoding="utf-8"?>
+<menu xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto">
+    <item
+        android:id="@+id/accelerator"
+        android:icon="@drawable/ic_launcher_foreground"
+        android:title="@string/app_name"
+        android:contentDescription="@string/app_name"
+        app:showAsAction="ifRoom"/>
+
+    <item
+        android:id="@+id/rotation"
+        android:icon="@drawable/ic_launcher_foreground"
+        android:title="@string/app_name"
+        android:contentDescription="@string/app_name"
+        app:showAsAction="ifRoom"/>
+
+    <item
+        android:id="@+id/dashboard"
+        android:icon="@drawable/ic_launcher_foreground"
+        android:title="@string/app_name"
+        android:contentDescription="@string/app_name"
+        app:showAsAction="ifRoom"/>
+</menu>

gradle.properties

@@ -19,3 +19,4 @@ android.useAndroidX=true
 # resources declared in the library itself and none from the library's dependencies,
 # thereby reducing the size of the R class for that library
 android.nonTransitiveRClass=true
+android.enableJetifier=true