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[英]Set ListView checkmark as checked/unchecked by program in Android ListActivity
[英]Android ListView determine Text or CheckMark click
标题已经说了。
我有一个带有自定义适配器的listview,行仅包含一个TextView和一个CheckBox。
我需要确定用户是否单击了CheckMark或Text,因此我可以显示一个说明对话框,说明他将要检查的内容!
在我的适配器中,我像这样设置OnClickListener:
@Override
public View getView(int position, View convertView, ViewGroup parent) {
View row = convertView;
if(row==null){
LayoutInflater inflater=getLayoutInflater();
row=inflater.inflate(R.layout.entsorgung_list_item, parent, false);
}
// CheckedTextView checkedTextView = (CheckedTextView)row.findViewById(R.id.ctvEntsorgung);
// checkedTextView.setText(bedarfsList.get(position));
TextView itemText = (TextView)row.findViewById(R.id.tvEntdorgItem);
CheckBox itemCheck = (CheckBox)row.findViewById(R.id.cbEntsorgItem);
itemCheck.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
Log.d("TRACE","check click pos ");
// here i need the ListView position thats been clicked
}
});
itemText.setText(bedarfsList.get(position));
Boolean checked = myChecked.get(position);
if (checked != null) {
itemCheck.setChecked(checked);
}
return row;
}
CheckBox的focusable设置为false。
在我的活动中,我有一个OnItemClickListener,它对于文本单击效果很好,我只需要复选框即可。
但是您已经从getView
方法收到CheckBox
的位置,因此请使用:
position
从:
public View getView(int position, View convertView, ViewGroup parent)
像这样:
itemCheck.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
Log.d("TRACE","check click pos ");
Boolean checked = myChecked.get(position);
}
});
编辑:看看下面我用于非常相似的情况的适配器:
private class MySecondAdapter extends ArrayAdapter<MiniTask>
{
private ArrayList<MiniTask> list;
public MySecondAdapter(Context context, int textViewResourceId, ArrayList<MiniTask> miniTaskList)
{
super(context, textViewResourceId, miniTaskList);
this.list = new ArrayList<MiniTask>();
this.list.addAll(miniTaskList);
}
public View getView(final int position, View convertView, ViewGroup parent)
{
miniTask = miniTaskList.get(position);
ViewHolder holder = new ViewHolder();
{
LayoutInflater inflator = (LayoutInflater)getSystemService(Context.LAYOUT_INFLATER_SERVICE);
convertView = inflator.inflate(R.layout.check_list_item_new, null);
holder.title = (TextView) convertView.findViewById(R.id.tvItemTitle);
holder.commentsPicturesButton = (ImageView) convertView.findViewById(R.id.iAddCommetOrPicture);
holder.commentsPicturesButton.setTag(position);
holder.commentsPicturesButton.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v)
{
Intent intent = new Intent(getApplicationContext(), PicturesAndCommentsActivity.class);
intent.putExtra(TasksListActivity.KEY_ID, task.getId());
intent.putExtra("mini_task_text", miniTask.getTitle());
startActivity(intent);
}
});
holder.selected = (CheckBox) convertView.findViewById(R.id.cbCheckListItem);
holder.selected.setTag(position);
holder.selected.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v)
{
{
Log.d(TAG, "pressed the checkbox: " + v.getId() + " in position: " + position + " tag: " +v.getTag() +" and item from array: " + miniTaskList.get(position) );
CheckBox checkbox = (CheckBox) v;
miniTaskList.get(position).setSelected(checkbox.isChecked());
numOfCheckedMiniTasks = 0;
for(int i=0;i<miniTaskList.size();i++)
{
miniTask = miniTaskList.get(i);
if(miniTask.isSelected())
{
numOfCheckedMiniTasks ++;
}
}
int percent = (int)(numOfCheckedMiniTasks * 100.0f) / miniTaskList.size();
Log.d(TAG, "the percentage is: " +percent);
tasksRepository.get(tasksRepository.indexOf(task)).setMiniTasksPercentageComplete(percent);
}
}
});
}
holder.title.setText(miniTask.getTitle());
holder.selected.setChecked(miniTask.isSelected());
return convertView;
}
}
static class ViewHolder
{
TextView title;
CheckBox selected;
ImageView commentsPicturesButton;
}
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