refactor: 使房间组件持有画板。

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

@@ -14,7 +14,8 @@ import com.muqingedit.xian;
 
 public class Edit extends ActivityFragment {
     @SuppressLint("StaticFieldLeak")
-    public static FrameLayout frameLayout;
+    public FrameLayout frameLayout;
+
     @Override
     protected void onCreate(@Nullable Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
@@ -22,19 +23,12 @@ public class Edit extends ActivityFragment {
         frameLayout = findViewById(R.id.view);
         //绘制一个房间
         findViewById(R.id.button).setOnClickListener(view -> {
-            fanjian button = new fanjian(Edit.this)
+            fanjian button = new fanjian(Edit.this).setPaletteView(frameLayout)
                     .setLayoutParams(260, 250)
                     .setXY(200, 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

@@ -18,6 +18,18 @@ import com.muqingedit.activity.Edit;
 
 public class fanjian extends FrameLayout {
 
+    private FrameLayout paletteView;
+
+    /**
+     * 为其设置画板视图
+     *
+     * @param paletteView
+     */
+    public fanjian setPaletteView(FrameLayout paletteView) {
+        this.paletteView = paletteView;
+        return this;
+    }
+
     public static int id = 0;
 
     private int X, Y;
@@ -30,14 +42,16 @@ public class fanjian extends FrameLayout {
 
     private class dian extends View {
         xian xian;
+
         public dian(Context context) {
             super(context);
             ViewGroup.LayoutParams aa = fanjian.this.getLayoutParams();
-            LayoutParams layoutParams = new LayoutParams(aa.width /3,
+            LayoutParams layoutParams = new LayoutParams(aa.width / 3,
                     aa.height / 3, Gravity.CENTER);
             this.setLayoutParams(layoutParams);
 //            setBackgroundColor(Color.WHITE);
         }
+
         @Override
         protected void onDraw(Canvas canvas) {
             super.onDraw(canvas);
@@ -45,12 +59,14 @@ public class fanjian extends FrameLayout {
             paint.setColor(Color.WHITE);
             paint.setStyle(Paint.Style.FILL);
             paint.setAntiAlias(true);
-            int centerX = getWidth()/2;
-            int centerY = getHeight()/2;
+            int centerX = getWidth() / 2;
+            int centerY = getHeight() / 2;
             int radius = Math.min(centerX, centerY);
             canvas.drawCircle(centerX, centerY, radius, paint);
         }
-        float ax, ay,csx, csy;
+
+        float ax, ay, csx, csy;
+
         @Override
         public boolean onTouchEvent(MotionEvent event) {
             ax = event.getX();
@@ -60,9 +76,9 @@ public class fanjian extends FrameLayout {
                     //在视图上面添加一条线
                     int[] location = new int[2];
                     fanjian.this.getLocationOnScreen(location);
-                    csx= (int) fanjian.this.getX() + fanjian.this.getWidth() / 2;
-                    csy= (int) fanjian.this.getY() + fanjian.this.getHeight() / 2;
-                    xian = new xian(getContext()).createNewLine(csx, csy);
+                    csx = (int) fanjian.this.getX() + fanjian.this.getWidth() / 2;
+                    csy = (int) fanjian.this.getY() + fanjian.this.getHeight() / 2;
+                    xian = new xian(getContext()).createNewLine(paletteView, csx, csy);
                     return true;
                 case MotionEvent.ACTION_MOVE:
                     //绘制线
@@ -72,7 +88,7 @@ public class fanjian extends FrameLayout {
                 case MotionEvent.ACTION_UP:
                     //删除线
                     xian.clearCurrentLine();
-                    Edit.frameLayout.removeView(xian);
+                    paletteView.removeView(xian);
                     xian = null;
                     return true;
             }
@@ -83,6 +99,7 @@ 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);
@@ -95,6 +112,7 @@ public class fanjian extends FrameLayout {
                 Long = !Long;
                 // 处理长按事件
             }
+
             @Override
             public boolean onScroll(@NonNull MotionEvent e1, @NonNull MotionEvent e2, float distanceX, float distanceY) {
                 if (Long) {
@@ -113,6 +131,7 @@ public class fanjian extends FrameLayout {
         gestureDetector.onTouchEvent(event);
         return true;
     }
+
     @SuppressLint("DrawAllocation")
     @Override
     protected void onDraw(Canvas canvas) {
@@ -153,6 +172,7 @@ public class fanjian extends FrameLayout {
         super.setX(x);
         X = (int) x;
     }
+
     @Override
     public void setY(float y) {
         super.setY(y);

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

@@ -7,6 +7,7 @@ import android.graphics.Color;
 import android.graphics.Paint;
 import android.view.MotionEvent;
 import android.view.View;
+import android.widget.FrameLayout;
 
 import com.muqingedit.activity.Edit;
 
@@ -32,18 +33,25 @@ public class xian extends View {
         linePaint.setStrokeWidth(5f);
     }
 
-    public xian createNewLine(float x, float y) {
-        startX = x;startY = y;currentX = x;currentY = y;
-        Edit.addView(this);
+    public xian createNewLine(FrameLayout frameLayout, float x, float y) {
+        startX = x;
+        startY = y;
+        currentX = x;
+        currentY = y;
+        frameLayout.addView(this);
         invalidate();//创建一个新的线
         return this;
     }
+
     public void updateCurrentLine(float x, float y) {
-        currentX = x;currentY = y;
+        currentX = x;
+        currentY = y;
         invalidate();//绘制中
     }
+
     public void clearCurrentLine() {
-        currentX = startX;currentY = startY;
+        currentX = startX;
+        currentY = startY;
         invalidate();//关闭绘制
     }