android 实现ListView中添加RaidoButton单选
import android.app.Activity;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.CompoundButton;
import android.widget.CompoundButton.OnCheckedChangeListener;
import android.widget.ImageView;
import android.widget.RadioButton;
import android.widget.TextView;
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;
}
}
general_recover_list_item.xml <?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="wrap_content" android:layout_height="fill_parent"> <RelativeLayout android:layout_width="wrap_content" android:layout_height="wrap_content" android:paddingLeft="5dip" android:paddingRight="5dip" android:id="@+id/backup_record_item"> <ImageView android:layout_height="wrap_content" android:layout_width="wrap_content" android:src="@drawable/icon" android:layout_alignParentLeft="true" android:id="@+id/backup_record_item_image"/> <LinearLayout android:layout_height="wrap_content" android:layout_width="wrap_content" android:orientation="vertical" android:layout_toRightOf="@+id/backup_record_item_image" android:id="@+id/backup_record_item_txt"> <TextView android:layout_height="wrap_content" android:layout_width="wrap_content" android:text="时间" android:layout_alignTop="@+id/imageView1" android:layout_alignBottom="@+id/imageView1" android:id="@+id/backup_record_item_time"/> <TextView android:layout_height="wrap_content" android:layout_width="wrap_content" android:text="备份联系人 到 " android:layout_toRightOf="@+id/imageView1" android:layout_alignTop="@+id/imageView1"/> <TextView android:layout_height="wrap_content" android:layout_width="wrap_content" android:text="手机/存储卡" android:layout_toRightOf="@+id/imageView1" android:layout_alignTop="@+id/imageView1" android:id="@+id/backup_record_item_to" /> </LinearLayout> <RadioButton android:layout_height="wrap_content" android:layout_width="wrap_content" android:layout_alignParentRight="true" android:id="@+id/backup_record_item_btn" />
<CheckBox android:layout_width="wrap_content" android:layout_height="wrap_content" android:visibility="gone" android:text="" android:id="@+id/backup_record_item_check" /> </RelativeLayout> </LinearLayout>
main.xml <LinearLayout android:layout_width="fill_parent" android:layout_height="fill_parent" android:orientation="vertical" android:id="@+id/recover_items"> <ListView android:id="@+id/recover_list" android:cacheColorHint="#00000000" android:layout_height="match_parent" android:layout_width="fill_parent"/> <View android:id="@+id/recover_footer" android:layout_width="fill_parent" android:layout_height="40dip" /> </LinearLayout>
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