我尝试为onClickListener
实施onLongClickListener
和RelativeLayout
时收到此错误:
10-19 17:49:31.400: E/AndroidRuntime(30886): FATAL EXCEPTION: main
10-19 17:49:31.400: E/AndroidRuntime(30886): java.lang.IllegalStateException: The specified child already has a parent. You must call removeView() on the child's parent first.
这是代码的一部分:
RelativeLayout meals_layout = (RelativeLayout) view
.findViewById(R.id.meals);
meals_layout.setOnLongClickListener(new OnLongClickListener() {
@Override
public boolean onLongClick(View v) {
AlertDialog.Builder builder = new AlertDialog.Builder(
JournalActivity.this);
builder.setTitle(R.string.meal_delete);
builder.setView(clickView);
builder.setPositiveButton(R.string.string_delete,
new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
}
});
builder.setNegativeButton(R.string.string_cancel,
new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog,
int which) {
// Do nothing
dialog.dismiss();
}
});
builder.create().show();
return false;
}
});
meals_layout.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
AlertDialog.Builder builder = new AlertDialog.Builder(
JournalActivity.this);
builder.setTitle(R.string.meal_edit); // al que hacerlo bonito
builder.setView(clickView);
builder.setPositiveButton(R.string.string_edit,
new DialogInterface.OnClickListener() {
}
});
builder.setNegativeButton(R.string.string_cancel,
new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog,
int which) {
// Do nothing
dialog.dismiss();
}
});
builder.create().show();
}
});
第一次打开活动时,我可以多次进行长按。但是,当我单击其他任何按钮(不仅是此处的一个按钮)时,如果我再次尝试进行longclick操作,应用程序将崩溃。
非常感谢您的帮助。
谢谢 :)
最佳答案
每个视图仅允许一个父级。显然clickView
已经有一个,所以当您调用setView(clickView)
时,它将引发错误。一种解决方法是添加:
((GroupView) clickView.getParent()).removeView(clickView);
到你们两个听众的开头。这将“孤立”
clickView
,因此可以将其添加到AlertDialog。