我有以下自定义基础适配器。我有一个 ListView ，每个项目都有一个编辑文本。我想在用户离开 edittext 后立即保存该数据，但现在发生的情况是每次用户输入 1 个字符时，setOnFocusChangeListener 都会触发。我真的不知道为什么会这样。
我的自定义基础适配器类
public class ChecklistBaseAdapter extends BaseAdapter {
private static ArrayList<Checklist> searchArrayList;
Context currentcontext;
DatabaseHandler db;
private LayoutInflater mInflater;
public ChecklistBaseAdapter(Context context, ArrayList<Checklist> results) {
searchArrayList = results;
mInflater = LayoutInflater.from(context);
currentcontext = context;
db = new DatabaseHandler(currentcontext);
}
public int getCount() {
return searchArrayList.size();
}
public void remove(int position) {
searchArrayList.remove(position);
notifyDataSetChanged();
}
public void removeAll() {
searchArrayList.clear();
notifyDataSetChanged();
}
public void add(Checklist checklist) {
searchArrayList.add(checklist);
notifyDataSetChanged();
}
public void notifyChange() {
notifyDataSetChanged();
}
public Object getItem(int position) {
return searchArrayList.get(position);
}
public long getItemId(int position) {
return position;
}
public View getView(int position, View convertView, ViewGroup parent) {
final ViewHolder holder;
if (convertView == null) {
convertView = mInflater.inflate(R.layout.checklistitem, null);
holder = new ViewHolder();
holder.cbStatus = (CheckBox) convertView
.findViewById(R.id.checkbox);
holder.etName = (EditText) convertView.findViewById(R.id.editname);
convertView.setTag(holder);
} else {
holder = (ViewHolder) convertView.getTag();
}
Checklist checklist = (Checklist) getItem(position);
holder.etName.setText(checklist.getName());
holder.etName.setId(position);
if (searchArrayList.get(position).getStatus().equals("F")) {
holder.cbStatus.setChecked(false);
} else {
holder.cbStatus.setChecked(true);
}
holder.etName.setOnEditorActionListener(new OnEditorActionListener() {
@Override
public boolean onEditorAction(TextView v, int actionId,
KeyEvent event) {
if (actionId == EditorInfo.IME_ACTION_DONE) {
int myint = v.getId();
searchArrayList.get(myint)._name = v.getText().toString();
return true;
}
return false;
}
});
holder.etName
.setOnFocusChangeListener(new OnFocusChangeListener() {
@Override
public void onFocusChange(View v, boolean hasFocus) {
String input;
EditText editText;
if (!hasFocus) {
Log.e("test", "test123");
int myint = v.getId();
editText = (EditText) v;
input = editText.getText().toString();
searchArrayList.get(myint)._name = input;
}
}
});
holder.cbStatus
.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
@Override
public void onCheckedChanged(CompoundButton buttonView,
boolean isChecked) {
String name = holder.etName.getText().toString().trim();
if (isChecked) {
for (int x = 0; x < searchArrayList.size(); x++) {
Checklist checklist = new Checklist();
checklist = searchArrayList.get(x);
if (name.equals(checklist.getName())) {
checklist.setStatus("T");
db.updateCheckList(checklist);
searchArrayList.set(x, checklist);
}
}
} else {
for (int x = 0; x < searchArrayList.size(); x++) {
Checklist checklist = new Checklist();
checklist = searchArrayList.get(x);
if (name.equals(checklist.getName())) {
checklist.setStatus("F");
searchArrayList.set(x, checklist);
db.updateCheckList(checklist);
}
}
}
}
});
return convertView;
}
static class ViewHolder {
CheckBox cbStatus;
EditText etName;
}
最佳答案
尝试使用 addTextChangedListener() 方法
holder.etName.addTextChangedListener(new TextWatcher() {
@Override
public void onTextChanged(CharSequence s, int start,
int before, int count) {
}
@Override
public void beforeTextChanged(CharSequence s, int start,
int count, int after) {
// TODO Auto-generated method stub
}
@Override
public void afterTextChanged(Editable s) {
// TODO Auto-generated method stub
String input;
EditText editText;
Log.e("test", "test123");
int myint = v.getId();
editText = (EditText)v;
input = editText.getText().toString();
searchArrayList.get(myint)._name = input;
});
希望对你有帮助。
关于android - setOnFocusChangeListener - 在每个字符后触发，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/15428295/