在安卓里自定义一个View 。同时实现了Activity和View是onTouchEvent监听。
发现只响应了Activity 里的ACTION_UP 和 ACTION_DOWN
View里只有DOWN的事件，怎么都是调不出来。后来我在view里设置chickable =true；问题解决了。
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| @Override
public boolean onTouchEvent(MotionEvent event) {
switch (event.getAction()) {
case MotionEvent.ACTION_DOWN:
x1 = event.getX();
y1 = event.getY();
Log.i("Touch", "MyView ------- > onTouchEvent DOWN");
break;
case MotionEvent.ACTION_UP:
x2 = event.getX();
y2 = event.getY();
if(y1 - y2 > 50) {
moveUp();
} else if(y2 - y1 > 50) {
moveDown();
} else if(x1 - x2 > 50) {
moveLeft();
} else if(x2 - x1 > 50) {
moveRight();
}
Log.i("Touch", "MyView ------- > onTouchEvent UP");
break;
default:
break;
}
Log.i("Touch", "MyView ------- > onTouchEvent");
return super.onTouchEvent(event);
}
|
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| <com.amy.viewdemo.MyView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_centerHorizontal="true"
android:clickable="true"
android:layout_centerVertical="true" />
|