Activity dispatchTouchEvent事件分发--测试（二）

来源：互联网发布：exe软件修改器编辑：程序博客网时间：2024/04/29 05:13

这篇在测试（一）的基础上测试ButtonExt

http://blog.csdn.net/id19870510/article/details/46381051

主界面的整体Layout布局如下（TextViewExt改成ButtonExt 没有重新设置background属性）

<LinearLayout 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:gravity="center">    <miss.goddess.touchdispatch.view.ButtonExt        android:layout_width="100dip"        android:layout_height="100dip"        //android:background="#ccc" 注释掉        android:padding="50dip"        android:text="@string/hello_world"/></LinearLayout>

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Activity覆盖了两个方法

@Overridepublic boolean dispatchTouchEvent(MotionEvent event) {Log.d("touch:activity-dispatch", EventName.getName(event));return super.dispatchTouchEvent(event);}@Overridepublic boolean onTouchEvent(MotionEvent event) {Log.d("touch:activity-onTouch", EventName.getName(event));return super.onTouchEvent(event);}

ButtonExt主要覆盖了 dispatchTouchEvent onTouchEvent方法

public class ButtonExt extends Button {        。。。。。。。。。。。。@Overridepublic boolean dispatchTouchEvent(MotionEvent event) {Log.d("touch:view:dispatch", EventName.getName(event));return super.dispatchTouchEvent(event);}@Overridepublic boolean onTouchEvent(MotionEvent event) {Log.d("touch:view:onTouch", EventName.getName(event));return super.onTouchEvent(event);}}

开始测试

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分两种情况触摸屏幕

1、滑动轨迹【A-O-B】

打印的日志如下

06-04 14:40:03.950: D/touch:activity-dispatch(14390): ACTION_DOWN---06-04 14:40:03.960: D/touch:activity-onTouch(14390): ACTION_DOWN---06-04 14:40:04.060: D/touch:activity-dispatch(14390): ACTION_MOVE06-04 14:40:04.060: D/touch:activity-onTouch(14390): ACTION_MOVE。。。。。。。。。。。。。。。。。。。。(省略)06-04 14:40:04.550: D/touch:activity-dispatch(14390): ACTION_MOVE06-04 14:40:04.550: D/touch:activity-onTouch(14390): ACTION_MOVE06-04 14:40:04.600: D/touch:activity-dispatch(14390): ACTION_UP06-04 14:40:04.600: D/touch:activity-onTouch(14390): ACTION_UP

可以发现。ButtonExt的dispatchTouchEvent onTouch事件根本不会执行

在滑动的过程中也能看到button按钮根本没有按下的selector效果

2、滑动轨迹【O-B】

06-08 15:52:07.740: D/touch:activity-dispatch(19221): ACTION_DOWN---06-08 15:52:07.740: D/touch:view:dispatch(19221): ACTION_DOWN---06-08 15:52:07.740: D/touch:view:touch(19221): ACTION_DOWN---06-08 15:52:07.980: D/touch:activity-dispatch(19221): ACTION_MOVE06-08 15:52:07.980: D/touch:view:dispatch(19221): ACTION_MOVE06-08 15:52:07.980: D/touch:view:touch(19221): ACTION_MOVE06-08 15:52:08.000: D/touch:activity-dispatch(19221): ACTION_MOVE06-08 15:52:08.000: D/touch:view:dispatch(19221): ACTION_MOVE06-08 15:52:08.000: D/touch:view:touch(19221): ACTION_MOVE。。。。。。手指划出button区域以后，ButtonExt仍然能接收screen touch 事件06-08 15:52:12.590: D/touch:activity-dispatch(19221): ACTION_MOVE06-08 15:52:12.590: D/touch:view:dispatch(19221): ACTION_MOVE06-08 15:52:12.590: D/touch:view:touch(19221): ACTION_MOVE。。。。。。。06-08 15:52:12.640: D/touch:activity-dispatch(19221): ACTION_MOVE06-08 15:52:12.640: D/touch:view:dispatch(19221): ACTION_MOVE06-08 15:52:12.640: D/touch:view:touch(19221): ACTION_MOVE06-08 15:52:12.660: D/touch:activity-dispatch(19221): ACTION_MOVE06-08 15:52:12.660: D/touch:view:dispatch(19221): ACTION_MOVE06-08 15:52:12.660: D/touch:view:touch(19221): ACTION_MOVE06-08 15:52:12.670: D/touch:activity-dispatch(19221): ACTION_MOVE06-08 15:52:12.670: D/touch:view:dispatch(19221): ACTION_MOVE06-08 15:52:12.670: D/touch:view:touch(19221): ACTION_MOVE06-08 15:52:12.670: D/touch:activity-dispatch(19221): ACTION_UP06-08 15:52:12.670: D/touch:view:dispatch(19221): ACTION_UP06-08 15:52:12.670: D/touch:view:touch(19221): ACTION_UP

ButtonExt可以在dispatchTouchEvent onTouchEvent中接收到Action_Down ACTION_MOVE ACTION_UP事件

activity的onTouchEvent事件收不到。。被中断了？

其中事件分发的顺序是

Activity dispatchTouchEvent -- > view dispatchTouchEvent -- > view onTouchEvent

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