android-------listview 实现radiobutton 单选
2011-11-30 19:08
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public class RecoverListAdapter extends BaseAdapter {
private LayoutInflater inflater;
int[] backup_record_item_image;
String[] backup_record_item_time;
String[] backup_record_item_to;
Activity activity;
private int temp = -1;
public RecoverListAdapter(Activity context, int[] backup_record_item_image,
String[] backup_record_item_time, String[] backup_record_item_to) {
this.inflater = LayoutInflater.from(context);
this.backup_record_item_image = backup_record_item_image;
this.backup_record_item_time = backup_record_item_time;
this.backup_record_item_to = backup_record_item_to;
this.activity = context;
}
@Override
public int getCount() {
return backup_record_item_time.length;
}
@Override
public Object getItem(int position) {
return position;
}
@Override
public long getItemId(int position) {
return position;
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
ViewHolder holder;
if (convertView == null) {
holder = new ViewHolder();
convertView = this.inflater.inflate(R.layout.general_recover_list_item, null);
holder.iv = (ImageView) convertView.findViewById(R.id.backup_record_item_image);
holder.tv_time = (TextView) convertView.findViewById(R.id.backup_record_item_time);
holder.tv_to = (TextView) convertView.findViewById(R.id.backup_record_item_to);
holder.radioButton = (RadioButton) convertView
.findViewById(R.id.backup_record_item_btn);
holder.radioButton.setChecked(false);
convertView.setTag(holder);
} else {
holder = (ViewHolder) convertView.getTag();
}
holder.iv.setImageResource(backup_record_item_image[position]);
holder.tv_time.setText(backup_record_item_time[position]);
holder.tv_to.setText(backup_record_item_to[position]);
//黑体部分为实现单选功能部分
holder.radioButton.setId(position);
holder.radioButton.setOnCheckedChangeListener(new OnCheckedChangeListener() {
@Override
public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
if (isChecked) {
if (temp != -1) {
RadioButton tempButton = (RadioButton) activity.findViewById(temp);
if (tempButton != null) {
tempButton.setChecked(false);
}
}
temp = buttonView.getId();
}
}
});
if (position == temp) {
holder.radioButton.setChecked(true);
} else {
holder.radioButton.setChecked(false);
}
return convertView;
}
private class ViewHolder {
ImageView iv;
TextView tv_time;
TextView tv_to;
RadioButton radioButton;
}
}
private LayoutInflater inflater;
int[] backup_record_item_image;
String[] backup_record_item_time;
String[] backup_record_item_to;
Activity activity;
private int temp = -1;
public RecoverListAdapter(Activity context, int[] backup_record_item_image,
String[] backup_record_item_time, String[] backup_record_item_to) {
this.inflater = LayoutInflater.from(context);
this.backup_record_item_image = backup_record_item_image;
this.backup_record_item_time = backup_record_item_time;
this.backup_record_item_to = backup_record_item_to;
this.activity = context;
}
@Override
public int getCount() {
return backup_record_item_time.length;
}
@Override
public Object getItem(int position) {
return position;
}
@Override
public long getItemId(int position) {
return position;
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
ViewHolder holder;
if (convertView == null) {
holder = new ViewHolder();
convertView = this.inflater.inflate(R.layout.general_recover_list_item, null);
holder.iv = (ImageView) convertView.findViewById(R.id.backup_record_item_image);
holder.tv_time = (TextView) convertView.findViewById(R.id.backup_record_item_time);
holder.tv_to = (TextView) convertView.findViewById(R.id.backup_record_item_to);
holder.radioButton = (RadioButton) convertView
.findViewById(R.id.backup_record_item_btn);
holder.radioButton.setChecked(false);
convertView.setTag(holder);
} else {
holder = (ViewHolder) convertView.getTag();
}
holder.iv.setImageResource(backup_record_item_image[position]);
holder.tv_time.setText(backup_record_item_time[position]);
holder.tv_to.setText(backup_record_item_to[position]);
//黑体部分为实现单选功能部分
holder.radioButton.setId(position);
holder.radioButton.setOnCheckedChangeListener(new OnCheckedChangeListener() {
@Override
public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
if (isChecked) {
if (temp != -1) {
RadioButton tempButton = (RadioButton) activity.findViewById(temp);
if (tempButton != null) {
tempButton.setChecked(false);
}
}
temp = buttonView.getId();
}
}
});
if (position == temp) {
holder.radioButton.setChecked(true);
} else {
holder.radioButton.setChecked(false);
}
return convertView;
}
private class ViewHolder {
ImageView iv;
TextView tv_time;
TextView tv_to;
RadioButton radioButton;
}
}
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