public void initData() {
lastMsgs = msgDbHelper.getLastMsg();
adapter.clear();
adapter.addAll(lastMsgs);
if (adapter.getCount() == 0) {
listView.setVisibility(View.GONE);
} else {
listView.setVisibility(View.VISIBLE);
}
}
public void initView() {
msgDbHelper = MsgDbHelper.getInstance(getActivity());
adapter = new MsgAdapter(getActivity());
listView.setAdapter(adapter);
listView.setOnItemClickListener(
new OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
ChatItem chatItem = lastMsgs.get(position);
Intent intent = new Intent();
intent.setClass(getActivity(), ChatActivity.class);
intent.putExtra("chatName", chatItem.chatName);
intent.putExtra("chatType", chatItem.chatType);
getActivity().startActivity(intent);
}
});
listView.setOnItemLongClickListener(
new OnItemLongClickListener() {
@Override
public boolean onItemLongClick(
AdapterView<?> parent, View view, final int position, long id) {
new AlertDialog.Builder(getActivity())
.setTitle("提示")
.setMessage("确认删除信息？删除后不可恢复？")
.setPositiveButton(
"是",
new OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
String username = adapter.getItem(position).chatName;
NewMsgDbHelper.getInstance(getActivity()).delNewMsg(username);
MyApplication.getInstance().sendBroadcast(new Intent("ChatNewMsg"));
MsgDbHelper.getInstance(getActivity()).delChatMsg(username);
adapter.notifyDataSetChanged();
}
})
.setNegativeButton("否", null)
.show();
return true;
}
});
// 接收到新消息的事件监听
newMsgReceiver = new NewMsgReceiver();
getActivity().registerReceiver(newMsgReceiver, new IntentFilter("ChatNewMsg"));
searchText.addTextChangedListener(
new TextWatcher() {
@Override
public void onTextChanged(CharSequence s, int start, int before, int count) {
// TODO Auto-generated method stub
}
@Override
public void beforeTextChanged(CharSequence s, int start, int count, int after) {
// TODO Auto-generated method stub
}
@Override
public void afterTextChanged(Editable s) {
if (s.toString().equals("")) {
initData();
} else {
lastMsgs = msgDbHelper.getLastMsg(s.toString());
adapter.clear();
adapter.addAll(lastMsgs);
}
}
});
}