設(shè)置ListView中的所有Item均不可點(diǎn)擊
正常地說(shuō)一般要是使一個(gè)控件不可點(diǎn)擊,不外乎使用以下幾種方法
setEnablesetClickablesetFocusable
但是對(duì)于ListView如果直接使用以上方法均失效,想要達(dá)到使ListView下所有Item均不可點(diǎn)擊的狀態(tài)(置灰),需要重寫Adapter下的isEnable方法,并且配合getView達(dá)到上述效果
1、首先需要在Adapter中添加一個(gè)標(biāo)志位
boolean isAllItemEnable=true
2、重寫isEnable方法
@Override public boolean isEnabled(int position) { return isAllItemEnable; }
3、增加是否開(kāi)啟全選的兩個(gè)方法
public void disableAllItemChoser() {
isAllItemEnable = false;
notifyDataSetChanged();
}
public void enableItemChoser() {
isAllItemEnable = true;
notifyDataSetChanged();
}
4、修改getView方法
@Override public View getView(int position, View convertView, ViewGroup arg2) { ViewHolder holder; if (convertView == null) { ... } else { ... } // 控制是否置灰 if (!isAllItemEnable) { holder.textView_contactsinfo.setEnabled(false); holder.checkBox_contactsinfo.setEnabled(false); } else { holder.textView_contactsinfo.setEnabled(true); holder.checkBox_contactsinfo.setEnabled(true); } return convertView; }
5、調(diào)用
設(shè)置所有不可選
myAdapter.disableAllItemChoser()設(shè)置所有可選
myAdapter.enableItemChoser()
最后,附上本人自己寫的一個(gè)Adapter,原理和上述一樣
public class MessInfoAdapter extends BaseAdapter {
private LayoutInflater mInflater;
private String[] stringType;
private boolean isAllItemEnable = true;
public MessInfoAdapter(Context context, String[] stringType) {
this.stringType = stringType;
this.mInflater = LayoutInflater.from(context);
functionSelectedList = new SparseBooleanArray();
for (int i = 0; i < mData.length; i++) {
functionSelectedList.put(i, false);
}
attachmentSelectedList = new SparseBooleanArray();
for (int i = 0; i < attachmentData.length; i++) {
attachmentSelectedList.put(i, false);
}
}
@Override
public boolean isEnabled(int position) {
return isAllItemEnable;
}
public void disableAllItemChoser() {
isAllItemEnable = false;
notifyDataSetChanged();
}
public void enableItemChoser() {
isAllItemEnable = true;
notifyDataSetChanged();
}
@Override
public int getCount() {
return stringType.length;
}
@Override
public Object getItem(int arg0) {
return null;
}
@Override
public long getItemId(int arg0) {
return 0;
}
@Override
public View getView(int position, View convertView, ViewGroup arg2) {
ViewHolder holder;
if (convertView == null) {
holder = new ViewHolder();
convertView = mInflater.inflate(
R.layout.contactsfill_list_item, null);
holder.textView_contactsinfo = (TextView) convertView
.findViewById(R.id.textview_contactsinfo);
holder.checkBox_contactsinfo = (CheckBox) convertView
.findViewById(R.id.checkbox_contactsinfo);
convertView.setTag(holder);
} else {
holder = (ViewHolder) convertView.getTag();
}
// 針對(duì)不同的ListView填充不同的數(shù)據(jù)
if (java.util.Arrays.equals(stringType, mData)) {
holder.textView_contactsinfo.setText(mData[position]);
holder.checkBox_contactsinfo.setChecked(functionSelectedList
.get(position));
} else if (java.util.Arrays.equals(stringType, attachmentData)) {
holder.textView_contactsinfo.setText(attachmentData[position]);
holder.checkBox_contactsinfo.setChecked(attachmentSelectedList
.get(position));
}
if (!isAllItemEnable) {
holder.textView_contactsinfo.setEnabled(false);
holder.checkBox_contactsinfo.setEnabled(false);
} else {
holder.textView_contactsinfo.setEnabled(true);
holder.checkBox_contactsinfo.setEnabled(true);
}
return convertView;
}
}