此案例主要讲的是Android控件Gridview（九宫格）完美实现仿支付宝首页，包含添加和删除功能；Fragment底部按钮切换的效果，包含四个模块，登录页面圆形头像等，一个小项目的初始布局。
效果图：
代码：
自定义GridView
<menu.menudemo.ui.view.ZQScrollGridView
android:id="@+id/home_gridview"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#E4E4E4"
android:cacheColorHint="#00000000"
android:fadingEdge="none"
android:horizontalSpacing="1dp"
android:listSelector="#00000000"
android:numColumns="3"
android:scrollbars="none"
android:verticalSpacing="1dp"
></menu.menudemo.ui.view.ZQScrollGridView>
首页代码
/**
* 首页
*/
public class HomeFragment extends Fragment implements View.OnClickListener { private View view;
private TextView tv_sign;
private Intent intent;
private ZQScrollGridView gridView; private static HomeAdapter adapter;
public static List<Integer> listPosition;
public static List<UserBean> list;
private static ACache aCache; private Context context; @Nullable
@Override
public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
return inflater.inflate(R.layout.fragment_home, container, false);
} @Override
public void onActivityCreated(@Nullable Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onActivityCreated(savedInstanceState);
view = getView();
aCache = ACache.get(getActivity());
context = getActivity();
initView();
} public void initView() {
tv_sign = (TextView) view.findViewById(R.id.home_sign);
tv_sign.setOnClickListener(this);
gridView = (ZQScrollGridView) view.findViewById(R.id.home_gridview);
onLoad();
} public void onLoad() {
adapter = new HomeAdapter(getActivity());
gridView.setAdapter(adapter);
gridView.setOnItemClickListener(onItemClickListener);
gridView.setOnItemLongClickListener(onItemLongClickListener);
showData();
} /*****
* 刷新数据
*/
private void notifyData() {
adapter.notifyDataSetChanged();
} @Override
public void onClick(View v) {
switch (v.getId()) { }
} public Handler handler = new Handler() {
public void handleMessage(Message msg) {
if (msg.what == 1) {
showLongClick(false);
} else if (msg.what == 2)//删除
{
showDelete();
}
}
}; AdapterView.OnItemClickListener onItemClickListener = new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
if (position == (listPosition.size() - 1)) {
intent = new Intent(getActivity(), SearchActivity.class);
intent.putExtra("list", (Serializable) listPosition);
startActivityForResult(intent, 1);
}
else { } }
};
AdapterView.OnItemLongClickListener onItemLongClickListener = new AdapterView.OnItemLongClickListener() {
@Override
public boolean onItemLongClick(AdapterView<?> parent, View view, int position, long id) { if (position == (listPosition.size() - 1)) {
return false;
}
showLongClick(true);
Message msg = new Message();
msg.what = 1;// 删除
msg.obj = 1;
LoginFragmentActivity.handler.sendMessage(msg);
return false;
}
}; @Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if (requestCode == 1) {
if (resultCode == 1) {
if (data.getStringExtra("key").equals("2")) {
listPosition.clear();
listPosition = HomeData.POSITION(aCache);
notifyData();
}
}
}
} private void showData() {
listPosition = HomeData.POSITION(aCache);
list = new ArrayList<UserBean>();
for (int i = 0; i < 34; i++) {
UserBean user = new UserBean(HomeData.IMG[i], HomeData.TITLE[i], false, false);
list.add(user);
}
notifyData();
} /***
* 删除
*/
private void showDelete() {
//删除缓存
String home = "";
for (int i = 0; i < listPosition.size() - 1; i++) {
UserBean userBean = list.get(listPosition.get(i));
if (!userBean.isCheck()) {
home += listPosition.get(i) + ",";
}
}
aCache.remove("home");
listPosition.clear();
try {
UtilFileDB.ADDFile(aCache, "home", home.substring(0, (home.length() - 1)));
if (listPosition == null || listPosition.size() <= 1) {
listPosition = HomeData.POSITION(aCache);
}
} catch (Exception e) {
listPosition.add((list.size()-1));//只留加号
}
showLongClick(false);
} /****
* 重新刷新数据
*
* @param isvisibility
*/
private void showLongClick(boolean isvisibility) {
list.clear();
for (int i = 0; i < 34; i++) {
UserBean user = new UserBean(HomeData.IMG[i], HomeData.TITLE[i], false, isvisibility);
list.add(user);
}
HomeFragment.list.get(33).setIsvisibility(false);
notifyData();
}
}