添加了连接逻辑方法

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

@@ -4,6 +4,9 @@ import androidx.annotation.NonNull;
 import androidx.appcompat.app.AppCompatActivity;
 
 import com.muqingedit.R;
+
+import java.util.Objects;
+
 public class ActivityFragment extends AppCompatActivity {
     @Override
     public boolean onOptionsItemSelected(@NonNull MenuItem item) {
@@ -14,7 +17,7 @@ public class ActivityFragment extends AppCompatActivity {
     }
     public void setToolbar() {
         setSupportActionBar(findViewById(R.id.toolbar));
-        getSupportActionBar().setDisplayHomeAsUpEnabled(true);
+        Objects.requireNonNull(getSupportActionBar()).setDisplayHomeAsUpEnabled(true);
     }
 
     @Override

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

@@ -2,48 +2,71 @@ package com.muqingedit.activity;
 
 import android.annotation.SuppressLint;
 import android.os.Bundle;
-import android.view.ViewTreeObserver;
+import android.view.Menu;
+import android.view.MenuItem;
 import android.widget.FrameLayout;
 
+import androidx.annotation.NonNull;
 import androidx.annotation.Nullable;
+import androidx.appcompat.app.AppCompatActivity;
 
-import com.muqingedit.ConnectionManager;
+import com.google.android.material.bottomappbar.BottomAppBar;
+import com.google.android.material.dialog.MaterialAlertDialogBuilder;
 import com.muqingedit.R;
 import com.muqingedit.fanjian;
-import com.muqingedit.gj;
 
 import java.util.ArrayList;
 import java.util.List;
 
 public class Edit extends ActivityFragment {
     public FrameLayout frameLayout;//后续需要添加fragment的移动和缩放
-    public static List<fanjian> list_fanjian = new ArrayList<>();
+    //收集所有的房间
+    public static List<fanjian> list_fanjian;
+    public static BottomAppBar bottomAppBar;
+
+    @SuppressLint("StaticFieldLeak")
+    public static fanjian fanjian;//选中的房间
+
     @SuppressLint("ClickableViewAccessibility")
     @Override
     protected void onCreate(@Nullable Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         setContentView(R.layout.edit);
+        list_fanjian = new ArrayList<>();
         frameLayout = findViewById(R.id.view);
         //绘制一个房间
         findViewById(R.id.button).setOnClickListener(view -> new fanjian(frameLayout));
-        frameLayout.getViewTreeObserver().addOnGlobalLayoutListener(new ViewTreeObserver.OnGlobalLayoutListener() {
+        Connection();
-            @Override
-            public void onGlobalLayout() {
-                // 在布局完成之后获取 FrameLayout 的高度
-                int height = frameLayout.getHeight();
-                int width = frameLayout.getWidth();
-
         fanjian main = new fanjian(frameLayout, "main");//设置主房间
-                int viewWidth = main.getMeasuredWidth();
-                int viewHeight = main.getMeasuredHeight();
-                float x = (width - viewWidth) / 2.0f;
-                float y = (height - viewHeight) / 2.0f;
-                gj.sc(height + ":" + y);
-                main.setXY((int) x, (int) y);
-                frameLayout.addView(main);
-                // 如果只需要获取一次高度，可以在获取之后移除监听器
-                frameLayout.getViewTreeObserver().removeOnGlobalLayoutListener(this);
     }
+
+    private void Connection() {
+        bottomAppBar = findViewById(R.id.bottomAppBar);
+        bottomAppBar.setOnMenuItemClickListener(item -> {
+            int id = item.getItemId();
+            if (id == R.id.Connection) {
+                if (fanjian != null) {
+                    new com.muqingedit.list_AlertDialog(this);
+                }
+            }
+            return false;
         });
+        bottomAppBar.performHide(false);
     }
+
+    @Override
+    public boolean onCreateOptionsMenu(Menu menu) {
+        getMenuInflater().inflate(R.menu.edit_toolbar,menu);
+        return super.onCreateOptionsMenu(menu);
+    }
+    @Override
+    public boolean onOptionsItemSelected(@NonNull MenuItem item) {
+        int itemId = item.getItemId();
+        if (itemId == R.id.Save) {
+            //保存
+        }
+        return super.onOptionsItemSelected(item);
+    }
+
+
 }

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

@@ -1,13 +1,10 @@
 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.text.TextUtils;
 import android.view.GestureDetector;
-import android.view.Gravity;
 import android.view.LayoutInflater;
 import android.view.MotionEvent;
 import android.view.View;
@@ -15,6 +12,8 @@ import android.view.ViewGroup;
 import android.widget.Button;
 import android.widget.EditText;
 import android.widget.FrameLayout;
+import android.widget.TextView;
+import android.widget.Toast;
 
 import androidx.annotation.NonNull;
 import androidx.appcompat.app.AlertDialog;
@@ -30,9 +29,7 @@ public class fanjian extends FrameLayout {
     public fanjian(FrameLayout context, String id) {
         super(context.getContext());
         this.frameLayout = context;
-        init();
+        init(id);
-        setId(id.hashCode());
-        setLayoutParams(300, 300);
     }
 
     public fanjian(FrameLayout context) {
@@ -49,20 +46,131 @@ public class fanjian extends FrameLayout {
         end.setOnClickListener(view -> show.dismiss());
         start.setOnClickListener(view -> {
             String id = edit_id.getText().toString();
+            for (int i = 0; i < Edit.list_fanjian.size(); i++) {
+                if (Edit.list_fanjian.get(i).Id().equals(id)) {
+                    Toast.makeText(this.getContext(), "已经存在该房间", Toast.LENGTH_SHORT).show();
+                    return;
+                }
+            }
             if (TextUtils.isEmpty(id)) {
                 return;
             }
-            fanjian.this.id = id;
+            init(id);
-            setId(id.hashCode());
-            Edit.list_fanjian.add(fanjian.this);
-            setLayoutParams(300, 300);
-            setXY(0, 0);
-            frameLayout.addView(fanjian.this);
             show.dismiss();
         });
-        init();
     }
 
+
+    private GestureDetector gestureDetector;
+    private boolean Long = false;
+
+    public TextView textView;
+    private void init(String id) {
+        // 设置背景颜色为红色
+        setBackgroundColor(Color.RED);
+        // 设置视图的尺寸为100x100像素
+        setLayoutParams(300, 300);
+        Id(id);
+        frameLayout.addView(this);
+        Edit.list_fanjian.add(this);
+        // 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 boolean onDoubleTap(@NonNull MotionEvent e) {
+                        if (Edit.fanjian != null) {
+                            Edit.fanjian.setBackgroundColor(Color.RED);
+                        }
+                        if (Edit.fanjian == fanjian.this) {
+                            Edit.fanjian = null;
+                            Edit.bottomAppBar.performHide();
+                            return super.onDoubleTap(e);
+                        }
+                        Edit.bottomAppBar.performShow();
+                        Edit.fanjian = fanjian.this;
+                        fanjian.this.setBackgroundColor(Color.MAGENTA);
+                        return super.onDoubleTap(e);
+                    }
+
+                    @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) {
+                        Y = (int) (e2.getY() - e1.getY());
+                        X = (int) (e2.getX() - e1.getX());
+                        animate().xBy(X).yBy(Y).setDuration(0).start();
+                        return true;
+                    }
+                });
+
+        textView = new TextView(this.getContext());
+        textView.setText(id);
+        addView(textView);
+    }
+
+    @Override
+    public boolean onTouchEvent(MotionEvent event) {
+        gestureDetector.onTouchEvent(event);
+        return true;
+    }
+
+    @SuppressLint("DrawAllocation")
+    @Override
+    protected void onDraw(Canvas canvas) {
+        super.onDraw(canvas);
+    }
+
+    public fanjian setLayoutParams(int a, int b) {
+        setLayoutParams(new ViewGroup.LayoutParams(a, b));
+        return this;
+    }
+
+    /*
+        @Override
+        public float getX() {
+            return this.X;
+        }
+
+        @Override
+        public float getY() {
+            return this.Y;
+        }
+    */
+    public String Id() {
+        return id;
+    }
+
+    public String getXY() {
+        return X + ":" + Y;
+    }
+
+    public fanjian setXY(int a, int b) {
+        setX(a);
+        setY(b);
+        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;
+    }
+
+    public void Id(String id) {
+        this.id = id;
+        setId(id.hashCode());
+    }
+    /*暂时弃用的一个自定义控件
     private class dian extends View {
         xian xian;
 
@@ -139,87 +247,5 @@ public class fanjian extends FrameLayout {
         }
 
     }
-
-    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) {
-                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) {
-        setLayoutParams(new ViewGroup.LayoutParams(a, b));
-        return this;
-    }
-
-    /*
-        @Override
-        public float getX() {
-            return this.X;
-        }
-
-        @Override
-        public float getY() {
-            return this.Y;
-        }
 */
-    public String Id() {
-        return id;
-    }
-
-    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/list_AlertDialog.java

@@ -0,0 +1,88 @@
+package com.muqingedit;
+
+import android.content.Context;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.TextView;
+
+import androidx.annotation.NonNull;
+import androidx.appcompat.app.AlertDialog;
+import androidx.recyclerview.widget.LinearLayoutManager;
+import androidx.recyclerview.widget.RecyclerView;
+
+import com.google.android.material.dialog.MaterialAlertDialogBuilder;
+import com.muqingedit.activity.Edit;
+
+import java.util.ArrayList;
+import java.util.List;
+
+public class list_AlertDialog extends MaterialAlertDialogBuilder {
+    RecyclerView list;
+    AlertDialog alertDialog;
+    public list_AlertDialog(@NonNull Context context) {
+        super(context);
+        list = new RecyclerView(context);
+        LinearLayoutManager linearLayoutManager = new LinearLayoutManager(context);
+        list.setLayoutManager(linearLayoutManager);
+        list.setAdapter(new adapter(Edit.list_fanjian));
+        setView(list);
+        show();
+    }
+
+    @Override
+    public AlertDialog show() {
+        this.alertDialog = super.show();
+        return alertDialog;
+    }
+    public void dismiss() {
+        alertDialog.dismiss();
+    }
+
+    class adapter extends RecyclerView.Adapter<Vh> {
+
+        private final List<fanjian> list=new ArrayList<>();
+
+        public adapter(List<fanjian> list) {
+            this.list.addAll(list);
+            this.list.remove(Edit.fanjian);
+        }
+        @NonNull
+        @Override
+        public Vh onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
+            View inflate = View.inflate(list_AlertDialog.this.getContext(),
+                    R.layout.list_fangjian, null);
+            ViewGroup.LayoutParams lp = new ViewGroup.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.WRAP_CONTENT);
+            inflate.setLayoutParams(lp);
+            return new Vh(inflate);
+        }
+
+        @Override
+        public void onBindViewHolder(@NonNull Vh holder, int position) {
+            fanjian fanjian = list.get(position);
+            holder.textView.setText(fanjian.Id());
+            holder.itemView.setOnClickListener(view -> {
+                fanjian.textView.setText(fanjian.Id() + "已经连接了" + Edit.fanjian.Id());
+                Edit.fanjian.textView.setText(Edit.fanjian.Id()+"已经连接了"+
+                        fanjian.Id());
+/*                xian xian = new xian(fanjian.frameLayout);
+                xian.createNewLine(Edit.fanjian.getX(), Edit.fanjian.getY());
+                xian.updateCurrentLine(fanjian.getX(), fanjian.getY());*/
+                list_AlertDialog.this.dismiss();
+            });
+        }
+
+        @Override
+        public int getItemCount() {
+            return list.size();
+        }
+    }
+
+    class Vh extends RecyclerView.ViewHolder {
+        public TextView textView;
+        public Vh(@NonNull View itemView) {
+            super(itemView);
+            textView = itemView.findViewById(R.id.text);
+        }
+    }
+}

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

@@ -1,6 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
     android:orientation="vertical">
@@ -25,13 +26,18 @@
             android:layout_width="match_parent"
             android:layout_height="wrap_content"
             android:layout_gravity="bottom"
-            app:menu="@menu/bottom_app_bar" />
+            app:menu="@menu/bottom_app_bar"
+            app:navigationContentDescription="@string/app_name"
+            app:fabAlignmentMode="center"
+            tools:ignore="VisualLintBottomAppBar" />
 
         <com.google.android.material.floatingactionbutton.FloatingActionButton
             android:id="@+id/button"
             android:layout_width="wrap_content"
             android:layout_height="wrap_content"
             app:layout_anchor="@id/bottomAppBar"
-            app:srcCompat="@drawable/baseline_add_24" />
+            app:srcCompat="@drawable/baseline_add_24"
+            tools:ignore="ImageContrastCheck"
+            android:contentDescription="@string/app_name" />
     </androidx.coordinatorlayout.widget.CoordinatorLayout>
 </LinearLayout>

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

@@ -0,0 +1,17 @@
+<?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"
+    android:orientation="horizontal">
+
+    <ImageView
+        android:layout_width="56dp"
+        android:layout_height="56dp"
+        android:src="@drawable/ic_launcher_foreground"
+        android:contentDescription="icon" />
+    <TextView
+        android:id="@+id/text"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:text="id" />
+</LinearLayout>

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

@@ -1,24 +1,10 @@
 <?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-->
+    <item
-<!--        android:id="@+id/accelerator"-->
+        android:id="@+id/Connection"
-<!--        android:icon="@drawable/ic_launcher_foreground"-->
+        android:icon="@drawable/baseline_add_24"
-<!--        android:title="@string/app_name"-->
+        android:title="连线"
-<!--        android:contentDescription="@string/app_name"-->
+        android:contentDescription="连线"
-<!--        app:showAsAction="ifRoom"/>-->
+        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>

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

@@ -0,0 +1,8 @@
+<?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/Save"
+        android:icon="@drawable/baseline_add_24"
+        android:title="保存"
+        app:showAsAction="ifRoom"/>
+</menu>