Checkbox与SimpleCursorAdapter的任何好例子 [英] Any good example for Checkbox with SimpleCursorAdapter
本文介绍了Checkbox与SimpleCursorAdapter的任何好例子的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
我有 SimpleCursorAdapter 与 ImageView 和 TextView 。它的工作方式是。我试图在我的 listview 中添加 CheckBox ，当我单击 code>我想要从数据库中删除列表行。
I have SimpleCursorAdapter with ImageView and TextView. It works the way it is. I am trying to add CheckBox in my listview, when I click on the checkbox I want the list row to delete from database.
很难找到这个案例的例子，如果你有我的情况的任何例子。
Its hard to find example on this case, if you have any example for my situation.
Main。
public void forGeneral(){
c = m.fetchAllReminders();
String[] from = new String[]{Database.KEY_FIRST, Database.KEY_LAST};
int[] to = new int[]{R.id.tFirst, R.id.tSecond};
r2 = new ImageV(getActivity().getApplicationContext(), R.layout.forcheckbox, c, from, to);
h = r2.getItemId(c.getPosition());
r2.setViewBinder(new SimpleCursorAdapter.ViewBinder() {
@Override
public boolean setViewValue(View arg0, Cursor arg1, final int arg2) {
// TODO Auto-generated method stub
if(arg0.getId() == R.id.cbCheckk){
final CheckBox cb1 = (CheckBox) arg0.findViewById(R.id.cbCheckk) ;
cb1.setTag(arg2);
cb1.setOnCheckedChangeListener(new OnCheckedChangeListener(){
@Override
public void onCheckedChanged(
CompoundButton buttonView, boolean isChecked) {
// TODO Auto-generated method stub
}
});
}
return false;
}
});
setListAdapter(r2);
}
ImageV.class
ImageV.class
public class ImageV extends SimpleCursorAdapter{
private Cursor cn;
private Context context;
private ViewHolder holder = null;
private Layout mlayout;
private ArrayList<String> list = new ArrayList<String>();
private ArrayList<Boolean> itemChecked = new ArrayList<Boolean>();
private int i;
public ImageV(Context context, int layout, Cursor c, String[] from, int[] to) {
super(context, layout, c, from, to);
this.cn= c;
this.context = context;
for(int i = 0; i < this.getCount(); i++){
itemChecked.add(i, false);
}
}
private class ViewHolder{
TextView mFirst;
TextView mLast;
CheckBox mCheckBox;
ListView lv;
}
public View getView (final int pos, View inView, ViewGroup parent){
LayoutInflater mInflater = (LayoutInflater) context.getSystemService(Activity.LAYOUT_INFLATER_SERVICE);
if(inView == null){
inView = mInflater.inflate(R.layout.forcheckbox, null);
holder = new ViewHolder();
holder.mFirst = (TextView) inView.findViewById(R.id.tFirst);
holder.mLast = (TextView) inView.findViewById(R.id.tSecond);
holder.mCheckBox = (CheckBox) inView.findViewById(R.id.cbCheckk);
inView.setTag(holder);
}else {
holder = (ViewHolder) inView.getTag();
}
this.cn.moveToPosition(pos);
String first = c.getString(c.getColumnIndex(Database.KEY_FIRST));
String last = c.getString(c.getColumnIndex(Database.KEY_LAST));
holder.mFirst.setText(first);
holder.mLast.setText(last);
holder.mCheckBox.setTag(pos);
holder.mCheckBox.setOnClickListener(new OnClickListener(){
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
CheckBox cb = (CheckBox) v.findViewById(R.id.cbCheckk);
if(cb.isChecked()){
itemChecked.set(pos, true);
Toast.makeText(getApplicationContext(), "Yes", Toast.LENGTH_LONG).show();
long u = c.getLong(i);
m.deleteReminder(u);
cb.setChecked(false);
c.requery();
}
}
});
return (inView);
}
推荐答案
选中此 POST
并尝试在活动或片段中添加onCheckChangeListener，而不是在适配器中添加
and try to add onCheckChangeListener in your activity or fragment instead of in your adapter
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