我有一个 ListView 并且我在其中放置了一个 onClickListener。当我单击它时，它应该运行一个 AlertDialog 但它似乎不起作用。 AlertDialog 应该显示 ListView 中的一些字符串。这是我正在使用的代码。
listView.setOnItemClickListener(new OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View view,
int position, long id) {
PopUpAlert(id);
}
});
private void PopUpAlert(final long id) {
Cursor cursor = dbHelper.getAllReviewRows(id);
if (cursor.moveToFirst()) {
//Preparing variables to use in message from Establishment record in Database
final String SName = cursor.getString(dbHelper.COL_REV_STATION_NAME);
String Date = cursor.getString(SQL.COL_DATE);
String SFacility = cursor.getString(SQL.COL_REV_FACILITY);
String Rating = cursor.getString(SQL.COL_RATING);
String Comment = cursor.getString(SQL.COL_COMMENTS);
// building a drill down information message and displaying it in an Alert Dialog
new AlertDialog.Builder(this)
.setTitle("Facilities Review App")
.setMessage("You Selected:\n"
+ "Station Name: " + SName + "\n" + "Date: " + Date
+ "\n" + "Facility: " + SFacility + "\n" + "Rating: " + Rating
+ "\n" + "Comment: " + Comment)
.setPositiveButton("Add Image", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
// calling method to add a review for that particular establishment
addImage(SName);
}
})
.setNegativeButton("Delete", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
// calling method to delete that particular establishment
}
});
}
}
最佳答案
您没有在 AlertDialog 上调用 show():
new AlertDialog.Builder(this)
.setTitle("Facilities Review App")
.setMessage("...")
.setPositiveButton(..)
.setNegativeButton(..)
.show();
在这里您可以找到 AlertDialog.Builder.show() 的文档
关于android - AlertDialog 未加载，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/29864015/