ListView item點擊不變色

深呼吸_DA 2014-06-27

展開全文

java代碼：

<ListView
android:id="@+id/contact_listview"
android:layout_width="wrap_content"
android:layout_height="400dip"
android:divider="#b9b9b9"
android:dividerHeight="1px"
android:cacheColorHint="#00000000"
android:listSelector="@drawable/list_selector"
android:headerDividersEnabled="true">
</ListView>

復(fù)制代碼
2,、在drawable文件夾中見一個list_selector.xml文件，不用寫什么內(nèi)容,，只是用來把系統(tǒng)自帶的給覆蓋掉,。

java代碼：

<?xml version="1.0" encoding="UTF-8"?>
<selector xmlns:android="http://schemas./apk/res/android">
</selector>

復(fù)制代碼
3,、在values文件夾中新建一個colors.xml文件，用來寫顏色值：

java代碼：

<?xml version="1.0" encoding="utf-8"?>
<resources>
<color name="list_item_focus">#626fcd</color>
</resources>

復(fù)制代碼
4,、在java文件里定義一個私有變量private View itemView;用來保存上一次選中的listitem,。
5、在下面三種事件中改變背景色

java代碼：

//listview的itme選中事件
private OnItemSelectedListener itemSelectedListener = new OnItemSelectedListener() {
@Override
public void onItemSelected(AdapterView<?> arg0, View arg1, int arg2, long arg3) {
itemBackChanged(arg1);
position = arg2;
}
@Override
public void onNothingSelected(AdapterView<?> arg0) {
}
};
//長按事件
private OnItemLongClickListener itemLongClickListener = new OnItemLongClickListener() {
@Override
public boolean onItemLongClick(AdapterView<?> parent, View view, int position, long id) {
itemBackChanged(view);
ContactGrpMemActivity.this.position = position;
return false;
}
};
//listview的item點擊事件
private OnItemClickListener itemClicklistener = new OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> arg0, View arg1, int arg2,
long arg3) {
Log.i(TAG, "**************onItemClick arg0 is " + arg0.getClass().getName());
Log.i(TAG, "**************onItemClick arg1 is " + arg1.getId());
Log.i(TAG, "**************onItemClick arg2 is " + arg2);
Log.i(TAG, "**************onItemClick arg3 is " + arg3);
itemBackChanged(arg1);
position = arg2;
}
};
//改變listitem的背景色
private void itemBackChanged(View view) {
//改變當(dāng)前點擊的listitem中textview的字體顏色
TextView contactName = (TextView)view.findViewById(R.id.contactName);
TextView contactTel = (TextView)view.findViewById(R.id.contactTel);
contactName.setTextColor(Color.WHITE);
contactTel.setTextColor(Color.WHITE);
if(itemView == null) itemView = view;
if(itemView != view) {
//改變上次點擊點擊的listitem中textview的字體顏色
contactName = (TextView)itemView.findViewById(R.id.contactName);
contactTel = (TextView)itemView.findViewById(R.id.contactTel);
contactName.setTextColor(Color.BLACK);
contactTel.setTextColor(Color.BLACK);
}
itemView.setBackgroundColor(android.R.color.transparent);
//將上次點擊的listitem的背景色設(shè)置成透明
view.setBackgroundResource(R.color.list_item_focus);
//設(shè)置當(dāng)前點擊的listitem的背景色
itemView = view;
}