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我想拖放一个按钮在screen.i可以拖动,但是当我放下面的错误发生。 logcat的:拖放视图
12-05 15:03:00.905: E/AndroidRuntime(1009): java.lang.IllegalArgumentException: Given view not a child of [email protected]
12-05 15:03:00.905: E/AndroidRuntime(1009): at android.view.ViewGroup.updateViewLayout(ViewGroup.java:1876)
12-05 15:03:00.905: E/AndroidRuntime(1009): at com.avigma.learning.DragLayer.onDrop(DragLayer.java:131)
12-05 15:03:00.905: E/AndroidRuntime(1009): at com.avigma.learning.DragController.drop(DragController.java:447)
12-05 15:03:00.905: E/AndroidRuntime(1009): at com.avigma.learning.DragController.onTouchEvent(DragController.java:424)
12-05 15:03:00.905: E/AndroidRuntime(1009): at com.avigma.learning.DragLayer.onTouchEvent(DragLayer.java:69)
XML: -
<?xml version="1.0" encoding="utf-8"?>
<com.avigma.learning.DragLayer
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:launcher="http://schemas.android.com/apk/res/com.android.launcher"
android:id="@+id/drag_layer"
android:layout_width="match_parent"
android:layout_height="match_parent">
<AbsoluteLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical" >
<ImageView
android:id="@+id/imageView1"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_alignParentBottom="true"
android:layout_alignParentLeft="true"
android:layout_alignParentRight="true"
android:layout_alignParentTop="true"
android:src="@drawable/b" />
<ScrollView
android:id="@+id/scrollView1"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_x="-4dp"
android:layout_y="2dp" >
<AbsoluteLayout
android:id="@+id/ll"
android:layout_width="match_parent"
android:layout_height="match_parent" >
//This button i am dragging and dropping
<Button
android:id="@+id/button2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_x="84dp"
android:layout_y="90dp"
android:background="@null"
android:text="B"
android:textColor="#000000"
android:textSize="35dp"
android:textStyle="bold"
android:typeface="serif" />
</AbsoluteLayout>
</ScrollView>
</AbsoluteLayout>
</com.avigma.learning.DragLayer>
我想我必须更新可移动物体的当前视图bcoz其refrencing拖动层其父视图,但在我的XML按钮目前的观点是绝对布局。这错误是在onDrop()我提供了代码: - 。
private boolean drop(float x, float y) {
final int[] coordinates = mCoordinatesTemp;
DropTarget dropTarget = findDropTarget((int) x, (int) y, coordinates);
if (dropTarget != null) {
dropTarget.onDragExit(mDragSource, coordinates[0], coordinates[1],
(int) mTouchOffsetX, (int) mTouchOffsetY, mDragView, mDragInfo);
if (dropTarget.acceptDrop(mDragSource, coordinates[0], coordinates[1],
(int) mTouchOffsetX, (int) mTouchOffsetY, mDragView, mDragInfo)) {
dropTarget.onDrop(mDragSource, coordinates[0], coordinates[1],
(int) mTouchOffsetX, (int) mTouchOffsetY, mDragView, mDragInfo);
mDragSource.onDropCompleted((View) dropTarget, true);
return true;
} else {
mDragSource.onDropCompleted((View) dropTarget, false);
return true;
}
}
return false;
}
请帮那我应该怎么做才能克服这种issue..or如何处理按钮建议立即进行删除d不参考拖动它当前的父视图,但绝对布局..我知道什么问题,要么(1)在一个ViewGroup下移动所有可移动的视图有相同的父视图; (2)安排在视图被删除时更改正在移动的视图的父视图。但今天我想我会尝试我上面提出的建议:(3)在接受放置的视图中,制作被拖动视图的副本。将该副本附加为该视图的子项。回到原来的观点,并从其parent.But删除它如何代码来修复它,请帮我...感谢名单..