活动包含编辑文本,提交按钮和从服务器获取其数据的列表视图。当我点击,编辑文本,它滚动至底部,它应该是:添加项目后,ListView不会滚动到底部
editText.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
getWindow().setSoftInputMode(
WindowManager.LayoutParams.SOFT_INPUT_ADJUST_PAN);
scrollMyListViewToBottom();
Log.i("yoyo","ListSize Before: " + size);
}
});
然而,当我点击提交按钮,列表视图更新后,当notifydatasetchanged();
被调用,它不滚动到底部。如果您想知道CommentQuery();
会发生什么,我可以提供更多代码。
submitComment.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
commentItem = new ParseObject("CommentItem");
commentItem.put("parentUser", feedUserName);
commentItem.put("parentFeed", feedItem);
// commentItem.put("parentObjectId", objectId);
commentItem.put("commentText", String.valueOf(commentText.getText()));
commentItem.put("username", ParseUser.getCurrentUser().getUsername());
commentItem.put("country", ParseUser.getCurrentUser().getInt("country"));
commentItem.put((ParseUser.getCurrentUser().getUsername() + "globalPoints"), 0);
commentItem.put("parentObjectId", objectId);
replies +=1;
commentItem.saveInBackground(new SaveCallback() {
@Override
public void done(ParseException e) {
if (e == null) {
arrayCommentList.clear();
comments.clearCachedResult();
CommentQuery();
customCommentListViewAdapter.notifyDataSetChanged();
Log.i("yoyo","ListSize After: " + size); //size changes like it is supposed to
scrollMyListViewToBottom(); //doesn't do anything
}
}
});
}
});
scrollMyListViewToBottom()函数:
public void scrollMyListViewToBottom() {
commentList.post(new Runnable() {
@Override
public void run() {
// Select the last row so it will scroll into view...
commentList.setSelection(size);
}
});
}
CommentQuery功能:
public void CommentQuery(){
comments = new ParseQuery<>("CommentItem");
comments.setLimit(99);
comments.whereEqualTo("parentObjectId", objectId);
comments.findInBackground(new FindCallback<ParseObject>() {
@Override
public void done(List<ParseObject> mobjects, ParseException e) {
if(e == null){
for(ParseObject object : mobjects){
parseObs = mobjects;
size = parseObs.getsize();
commentData = new HashMap<>();
commentData.put("username", object.getString("username"));
commentData.put("feed", object.getString("commentText"));
commentData.put("likes", String.valueOf(object.getInt("likes")));
commentData.put("country", String.valueOf(object.getInt("country")));
commentData.put("replies", String.valueOf(0));
commentData.put("global", String.valueOf(object.getInt(usernameText+"globalPoints")));
arrayCommentList.add(commentData);
}
customCommentListViewAdapter = new CustomCommentListViewAdapter(getApplicationContext(), arrayCommentList);
commentList.setAdapter(customCommentListViewAdapter);
}
}
});
}
您似乎不会增加尺寸,所以我希望滚动保持不变。 –
如果你读了日志,它说'尺寸'就像它应该改变一样。 @MattClark – grant
如果您发布了日志,或许我可以阅读它并且知道它;) –