事件拦截机制验证

hjh200573 · Sep 3, 2019 · 3327035 · 3327035
1 parent c5e7544
commit 3327035
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Showing 6 changed files with 200 additions and 13 deletions.
diff --git a/TouchEventDemo/app/src/main/java/com/cyq/toucheventdemo/MainActivity.java b/TouchEventDemo/app/src/main/java/com/cyq/toucheventdemo/MainActivity.java
@@ -1,14 +1,48 @@
 package com.cyq.toucheventdemo;
 
-import androidx.appcompat.app.AppCompatActivity;
-
 import android.os.Bundle;
+import android.view.MotionEvent;
+import android.view.View;
+
+import androidx.appcompat.app.AppCompatActivity;
 
 public class MainActivity extends AppCompatActivity {
+    private static final String Log = "TouchEventDemo";
+    private MyView myView;
 
     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         setContentView(R.layout.activity_main);
+        myView = findViewById(R.id.my_view);
+        myView.setOnTouchListener(new View.OnTouchListener() {
+            @Override
+            public boolean onTouch(View view, MotionEvent motionEvent) {
+                switch (motionEvent.getAction()) {
+                    case MotionEvent.ACTION_DOWN:
+                        android.util.Log.d(Log, "my_view:手指按下");
+                        break;
+                    case MotionEvent.ACTION_MOVE:
+                        android.util.Log.d(Log, "my_view:手指移动");
+                        break;
+                    case MotionEvent.ACTION_UP:
+                        android.util.Log.d(Log, "my_view:手指抬起");
+                        break;
+                }
+                return false;
+            }
+        });
+    }
+
+    @Override
+    public boolean dispatchTouchEvent(MotionEvent ev) {
+        android.util.Log.d(Log, "MainActivity:dispatchTouchEvent");
+        return super.dispatchTouchEvent(ev);
+    }
+
+    @Override
+    public boolean onTouchEvent(MotionEvent event) {
+        android.util.Log.d(Log, "MainActivity:onTouchEvent");
+        return super.onTouchEvent(event);
     }
 }
diff --git a/TouchEventDemo/app/src/main/java/com/cyq/toucheventdemo/MyButton.java b/TouchEventDemo/app/src/main/java/com/cyq/toucheventdemo/MyButton.java
@@ -0,0 +1,24 @@
+package com.cyq.toucheventdemo;
+
+import android.content.Context;
+import android.util.AttributeSet;
+import android.widget.Button;
+
+/**
+ * Create by 陈扬齐
+ * Create on 2019-09-03
+ * description:
+ */
+public class MyButton extends Button {
+    public MyButton(Context context) {
+        super(context);
+    }
+
+    public MyButton(Context context, AttributeSet attrs) {
+        super(context, attrs);
+    }
+
+    public MyButton(Context context, AttributeSet attrs, int defStyleAttr) {
+        super(context, attrs, defStyleAttr);
+    }
+}
diff --git a/TouchEventDemo/app/src/main/java/com/cyq/toucheventdemo/MyScrollView.java b/TouchEventDemo/app/src/main/java/com/cyq/toucheventdemo/MyScrollView.java
@@ -0,0 +1,31 @@
+package com.cyq.toucheventdemo;
+
+import android.content.Context;
+import android.util.AttributeSet;
+import android.view.MotionEvent;
+import android.widget.ScrollView;
+
+/**
+ * Create by 陈扬齐
+ * Create on 2019-09-03
+ * description:
+ */
+public class MyScrollView extends ScrollView {
+    public MyScrollView(Context context) {
+        super(context);
+    }
+
+    public MyScrollView(Context context, AttributeSet attrs) {
+        super(context, attrs);
+    }
+
+    public MyScrollView(Context context, AttributeSet attrs, int defStyleAttr) {
+        super(context, attrs, defStyleAttr);
+    }
+
+    @Override
+    public boolean onInterceptTouchEvent(MotionEvent ev) {
+        boolean result = super.onInterceptTouchEvent(ev);
+        return result;
+    }
+}
diff --git a/TouchEventDemo/app/src/main/java/com/cyq/toucheventdemo/MyView.java b/TouchEventDemo/app/src/main/java/com/cyq/toucheventdemo/MyView.java
@@ -0,0 +1,41 @@
+package com.cyq.toucheventdemo;
+
+import android.content.Context;
+import android.util.AttributeSet;
+import android.view.MotionEvent;
+import android.view.View;
+
+import androidx.annotation.Nullable;
+
+/**
+ * Create by 陈扬齐
+ * Create on 2019-09-03
+ * description:
+ */
+public class MyView extends View {
+    private static final String Log = "TouchEventDemo";
+
+    public MyView(Context context) {
+        super(context);
+    }
+
+    public MyView(Context context, @Nullable AttributeSet attrs) {
+        super(context, attrs);
+    }
+
+    public MyView(Context context, @Nullable AttributeSet attrs, int defStyleAttr) {
+        super(context, attrs, defStyleAttr);
+    }
+
+    @Override
+    public boolean dispatchTouchEvent(MotionEvent ev) {
+        android.util.Log.d(Log, "MyView:dispatchTouchEvent");
+        return super.dispatchTouchEvent(ev);
+    }
+
+    @Override
+    public boolean onTouchEvent(MotionEvent event) {
+        android.util.Log.d(Log, "MyView:onTouchEvent");
+        return super.onTouchEvent(event);
+    }
+}
diff --git a/TouchEventDemo/app/src/main/java/com/cyq/toucheventdemo/MyViewGroup.java b/TouchEventDemo/app/src/main/java/com/cyq/toucheventdemo/MyViewGroup.java
@@ -0,0 +1,60 @@
+package com.cyq.toucheventdemo;
+
+import android.content.Context;
+import android.util.AttributeSet;
+import android.view.MotionEvent;
+import android.widget.FrameLayout;
+
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
+
+/**
+ * Create by 陈扬齐
+ * Create on 2019-09-03
+ * description:
+ */
+public class MyViewGroup extends FrameLayout {
+    private static final String Log = "TouchEventDemo";
+
+    public MyViewGroup(@NonNull Context context) {
+        super(context);
+    }
+
+    public MyViewGroup(@NonNull Context context, @Nullable AttributeSet attrs) {
+        super(context, attrs);
+    }
+
+    public MyViewGroup(@NonNull Context context, @Nullable AttributeSet attrs, int defStyleAttr) {
+        super(context, attrs, defStyleAttr);
+    }
+
+    @Override
+    public boolean dispatchTouchEvent(MotionEvent ev) {
+        android.util.Log.d(Log, "MyViewGroup:dispatchTouchEvent");
+        return super.dispatchTouchEvent(ev);
+    }
+
+    @Override
+    public boolean onInterceptTouchEvent(MotionEvent ev) {
+        android.util.Log.d(Log, "MyViewGroup:onInterceptTouchEvent");
+        return super.onInterceptTouchEvent(ev);
+    }
+
+    @Override
+    public boolean onTouchEvent(MotionEvent event) {
+        android.util.Log.d(Log, "MyViewGroup:onTouchEvent");
+//        switch (event.getAction()) {
+//            case MotionEvent.ACTION_DOWN:
+//                android.util.Log.d(Log, "MyViewGroup:手指按下");
+//                break;
+//            case MotionEvent.ACTION_MOVE:
+//                android.util.Log.d(Log, "MyViewGroup:手指移动");
+//                break;
+//            case MotionEvent.ACTION_UP:
+//                android.util.Log.d(Log, "MyViewGroup:手指抬起");
+//                break;
+//        }
+
+        return super.onTouchEvent(event);
+    }
+}
diff --git a/TouchEventDemo/app/src/main/res/layout/activity_main.xml b/TouchEventDemo/app/src/main/res/layout/activity_main.xml
@@ -1,18 +1,15 @@
 <?xml version="1.0" encoding="utf-8"?>
-<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
-    xmlns:app="http://schemas.android.com/apk/res-auto"
+<com.cyq.toucheventdemo.MyViewGroup 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"
+    android:background="@color/colorPrimary"
     tools:context=".MainActivity">
 
-    <TextView
-        android:layout_width="wrap_content"
-        android:layout_height="wrap_content"
-        android:text="Hello World!"
-        app:layout_constraintBottom_toBottomOf="parent"
-        app:layout_constraintLeft_toLeftOf="parent"
-        app:layout_constraintRight_toRightOf="parent"
-        app:layout_constraintTop_toTopOf="parent" />
+    <com.cyq.toucheventdemo.MyView
+        android:id="@+id/my_view"
+        android:layout_width="200dp"
+        android:layout_height="200dp"
+        android:background="@color/colorAccent" />
 
-</androidx.constraintlayout.widget.ConstraintLayout>
+</com.cyq.toucheventdemo.MyViewGroup>