Android 如何在视图寻呼机上拖动浮动操作按钮
在这里,我有一个视图寻呼机,它由多个片段共享,这些片段都包含在一个TABLayout中,如下所示Android 如何在视图寻呼机上拖动浮动操作按钮,android,android-fragments,android-viewpager,floating-action-button,onlongclicklistener,Android,Android Fragments,Android Viewpager,Floating Action Button,Onlongclicklistener,在这里,我有一个视图寻呼机,它由多个片段共享,这些片段都包含在一个TABLayout中,如下所示 <RelativeLayout android:layout_width="match_parent" android:layout_height="match_parent" xmlns:app="http://schemas.android.com/apk/res-auto" android:orientation="vertical" xmlns:android="http://sche
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:orientation="vertical"
xmlns:android="http://schemas.android.com/apk/res/android">
<android.support.v7.widget.Toolbar
android:id="@+id/toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:background="#006699"
android:titleTextColor="#FFFFFF"
app:popupTheme="@style/AppTheme.PopupOverlay" />
<android.support.design.widget.TabLayout
android:id="@+id/tab_layout"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_below="@+id/toolbar"
android:background="#006699"
android:elevation="6dp"
android:minHeight="?attr/actionBarSize"
android:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar"/>
<android.support.v4.view.ViewPager
android:id="@+id/pager"
android:layout_width="match_parent"
android:layout_height="fill_parent"
android:layout_below="@id/tab_layout"/>
<android.support.design.widget.FloatingActionButton
android:id="@+id/order_icon"
android:layout_width="59dp"
android:layout_height="59dp"
android:visibility="visible"
android:layout_gravity="right|bottom"
app:layout_anchor="@id/pager"
app:layout_anchorGravity="bottom|right|end"
android:src="@drawable/order_icon"
android:layout_alignBottom="@+id/pager"
android:layout_alignParentRight="true"
android:layout_alignParentEnd="true" />
</RelativeLayout>
如有任何回复,将不胜感激。提前谢谢。试试这个
1) 声明变量
float dX;
float dY;
int lastAction;
2) 在java类中获取视图
fab = (FloatingActionButton) findViewById(R.id.floatingActionButton);
3) 然后为您的视图编写以下代码
fab.setOnTouchListener(new View.OnTouchListener() {
@Override
public boolean onTouch(View view, MotionEvent event) {
switch (event.getActionMasked()) {
case MotionEvent.ACTION_DOWN:
dX = view.getX() - event.getRawX();
dY = view.getY() - event.getRawY();
lastAction = MotionEvent.ACTION_DOWN;
break;
case MotionEvent.ACTION_MOVE:
view.setY(event.getRawY() + dY);
view.setX(event.getRawX() + dX);
lastAction = MotionEvent.ACTION_MOVE;
break;
case MotionEvent.ACTION_UP:
if (lastAction == MotionEvent.ACTION_DOWN)
Toast.makeText(this, "Clicked!", Toast.LENGTH_SHORT).show();
break;
default:
return false;
}
return true;
}
});
试试这个,我编辑了上面答案中的代码
fab.setOnTouchListener(new View.OnTouchListener() {
float dX;
float dY;
float startX;
float startY;
int lastAction;
@Override
public boolean onTouch(View v, MotionEvent event) {
switch (event.getActionMasked()) {
case MotionEvent.ACTION_DOWN:
dX = v.getX() - event.getRawX();
dY = v.getY() - event.getRawY();
startX = event.getRawX();
startY = event.getRawY();
lastAction = MotionEvent.ACTION_DOWN;
break;
case MotionEvent.ACTION_MOVE:
v.setY(event.getRawY() + dY);
v.setX(event.getRawX() + dX);
lastAction = MotionEvent.ACTION_MOVE;
break;
case MotionEvent.ACTION_UP:
if (Math.abs(startX - event.getRawX()) < 10 && Math.abs(startY - event.getRawY()) < 10){
Toast.makeText(v.getContext(), "Clicked!", Toast.LENGTH_SHORT).show();
}
break;
default:
return false;
}
return true;
}
});
fab.setOnTouchListener(新视图.OnTouchListener(){
浮动dX;
浮动dY;
浮动startX;
浮星;
最后行动;
@凌驾
公共布尔onTouch(视图v,运动事件){
开关(event.getActionMasked()){
case MotionEvent.ACTION\u DOWN:
dX=v.getX()-event.getRawX();
dY=v.getY()-event.getRawY();
startX=event.getRawX();
startY=event.getRawY();
lastAction=MotionEvent.ACTION\u DOWN;
打破
case MotionEvent.ACTION\u移动:
v、 setY(event.getRawY()+dY);
v、 setX(event.getRawX()+dX);
lastAction=MotionEvent.ACTION\u MOVE;
打破
case MotionEvent.ACTION\u UP:
if(Math.abs(startX-event.getRawX())<10和&Math.abs(startY-event.getRawY())<10){
Toast.makeText(v.getContext(),“Clicked!”,Toast.LENGTH_SHORT.show();
}
打破
违约:
返回false;
}
返回true;
}
});
这是可行的,我不知道为什么它不是公认的答案,谢谢。它确实可行,但变量“view”有一个错误。将其更改为“v”将使其正常工作。@ChungXa谢谢,兄弟。它正常工作,但在晶圆厂空间内移动,而不是在整个活动中移动
fab.setOnTouchListener(new View.OnTouchListener() {
float dX;
float dY;
float startX;
float startY;
int lastAction;
@Override
public boolean onTouch(View v, MotionEvent event) {
switch (event.getActionMasked()) {
case MotionEvent.ACTION_DOWN:
dX = v.getX() - event.getRawX();
dY = v.getY() - event.getRawY();
startX = event.getRawX();
startY = event.getRawY();
lastAction = MotionEvent.ACTION_DOWN;
break;
case MotionEvent.ACTION_MOVE:
v.setY(event.getRawY() + dY);
v.setX(event.getRawX() + dX);
lastAction = MotionEvent.ACTION_MOVE;
break;
case MotionEvent.ACTION_UP:
if (Math.abs(startX - event.getRawX()) < 10 && Math.abs(startY - event.getRawY()) < 10){
Toast.makeText(v.getContext(), "Clicked!", Toast.LENGTH_SHORT).show();
}
break;
default:
return false;
}
return true;
}
});