package com.cui.trypro.small_function;
import android.database.Cursor;
import android.net.Uri;
import android.os.Bundle;
import android.provider.ContactsContract;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AbsListView;
import android.widget.AdapterView;
import android.widget.AlphabetIndexer;
import android.widget.LinearLayout;
import android.widget.ListView;
import android.widget.TextView;
import android.widget.Toast;
import com.cui.trypro.BaseActivity;
import com.cui.trypro.R;
import java.util.ArrayList;
import java.util.List;
import butterknife.ButterKnife;
import butterknife.InjectView;
/**
* Created by cuiyang on 15/9/13.
*/
public class Contacts2_Activity extends BaseActivity {
@InjectView(R.id.country_lvcountry)
ListView sortListView;
@InjectView(R.id.sidrbar)
SideBar sideBar;
@InjectView(R.id.dialog)
TextView dialog;
/**
* 分组的布局
*/
private LinearLayout titleLayout;
/**
* 分组上显示的字母
*/
private TextView title;
/**
* 联系人列表适配器
*/
private ContactAdapter adapter;
/**
* 用于进行字母表分组
*/
private AlphabetIndexer indexer;
/**
* 存储所有手机中的联系人
*/
private List<SortModel> SourceDateList = new ArrayList<SortModel>();
/**
* 定义字母表的排序规则
*/
private String alphabet = "#ABCDEFGHIJKLMNOPQRSTUVWXYZ";
/**
* 上次第一个可见元素，用于滚动时记录标识。
*/
private int lastFirstVisibleItem = -1;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.contact_act);
ButterKnife.inject(this);
super.initToolbar("", true);
adapter = new ContactAdapter(this, R.layout.contact_item, SourceDateList);
initView();
}
private void initView() {
dialog = (TextView) findViewById(R.id.dialog);
title = (TextView) findViewById(R.id.title);
titleLayout = (LinearLayout) findViewById(R.id.title_layout);
sideBar.setTextView(dialog);
/**获取通讯录*/
Uri uri = ContactsContract.CommonDataKinds.Phone.CONTENT_URI;
Cursor cursor = getContentResolver().query(uri,
new String[]{"display_name", "sort_key"}, null, null, "sort_key");
if (cursor.moveToFirst()) {
do {
String name = cursor.getString(0);
String sortKey = getSortKey(cursor.getString(1));
SortModel contact = new SortModel();
contact.setName(name);
contact.setSortLetters(sortKey);
SourceDateList.add(contact);
} while (cursor.moveToNext());
}
startManagingCursor(cursor);
indexer = new AlphabetIndexer(cursor, 1, alphabet);//，从系统联系人数据库中去查询联系人的姓名
// 和排序键，之后将查询返回的cursor直接传入AlphabetIndexer作为第一个参数。由于我们一共就查了两列，排
// 序键在第二列，所以我们第二个sortedColumnIndex参数传入1。第三个alphabet参数这里传入了"#ABCDEFGHIJKLMNOPQRSTUVWXYZ"字符
sortListView.setAdapter(adapter);
adapter.setIndexer(indexer);
if (SourceDateList.size() > 0) {
setupContactsListView();
}
sideBar.setOnTouchingLetterChangedListener(new SideBar.OnTouchingLetterChangedListener() {
@Override
public void onTouchingLetterChanged(String s) {
int position = getPositionForSection(s.charAt(0));
if (position != -1) {
sortListView.setSelection(position);
}
}
});
sortListView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View view,
int position, long id) {
Toast.makeText(getApplication(), ((SortModel) adapter.getItem(position)).getName(), Toast.LENGTH_SHORT).show();
}
});
}
/**
* 为联系人ListView设置监听事件，根据当前的滑动状态来改变分组的显示位置，从而实现挤压动画的效果。
*/
private void setupContactsListView() {
sortListView.setOnScrollListener(new AbsListView.OnScrollListener() {
@Override
public void onScrollStateChanged(AbsListView view, int scrollState) {
}
@Override
public void onScroll(AbsListView view, int firstVisibleItem, int visibleItemCount,
int totalItemCount) {
int section = indexer.getSectionForPosition(firstVisibleItem);
int nextSecPosition = indexer.getPositionForSection(section + 1);
if (firstVisibleItem != lastFirstVisibleItem) {
ViewGroup.MarginLayoutParams params = (ViewGroup.MarginLayoutParams) titleLayout.getLayoutParams();
params.topMargin = 0;
titleLayout.setLayoutParams(params);
title.setText(String.valueOf(alphabet.charAt(section)));
}
if (nextSecPosition == firstVisibleItem + 1) {
View childView = view.getChildAt(0);
if (childView != null) {//，在onScroll方法中通过getSectionForPosition方法获取第一
// 个可见元素的分组值，然后给该分组值加1，再通过getPositionForSection方法或者到下一个
// 分组中的第一个元素，如果下个分组的第一个元素值等于第一个可见元素的值加1，那就说明下个分
// 组的布局要和界面顶部分组布局相碰了。之后再通过ListView的getChildAt(0)方法，获取到界
// 面上显示的第一个子View，再用view.getBottom获取底部距离父窗口的位置，对比分组布局的高度来对顶部分组布局进行纵向偏移，就可以实现挤压动画的效果了。
int titleHeight = titleLayout.getHeight();
int bottom = childView.getBottom();
ViewGroup.MarginLayoutParams params = (ViewGroup.MarginLayoutParams) titleLayout
.getLayoutParams();
if (bottom < titleHeight) {
float pushedDistance = bottom - titleHeight;
params.topMargin = (int) pushedDistance;
titleLayout.setLayoutParams(params);
} else {
if (params.topMargin != 0) {
params.topMargin = 0;
titleLayout.setLayoutParams(params);
}
}
}
}
lastFirstVisibleItem = firstVisibleItem;
}
});
}
/**
* 获取sort key的首个字符，如果是英文字母就直接返回，否则返回#。
*
* @param sortKeyString 数据库中读取出的sort key
* @return 英文字母或者#
*/
private String getSortKey(String sortKeyString) {
String key = sortKeyString.substring(0, 1).toUpperCase();
if (key.matches("[A-Z]")) {
return key;
}
return "#";
}
/**
* 根据分类的首字母的Char ascii值获取其第一次出现该首字母的位置
*/
public int getPositionForSection(int section) {
for (int i = 0; i < SourceDateList.size(); i++) {
String sortStr = SourceDateList.get(i).getSortLetters();
char firstChar = sortStr.toUpperCase().charAt(0);
if (firstChar == section) {
return i;
}
}
return -1;
}
}