项目中要求列表按照ABCD这种字母排序检索的功能，看了大神写的，瞬间崇拜了，接下来借大家参考参考了
首先是自定义view sidebar
1 /**
2 * @author J
3 *一个自定义view 实现a-z的竖直绘制，和监听滑动事件
4 */
5 public class SideBar extends View {
6 private OnTouchingLetterChangedListener onTouchingLetterChangedListener;
7 public static String[] b = { "A", "B", "C", "D", "E", "F", "G", "H", "I",
8 "J", "K", "L", "M", "N", "O", "P", "Q", "R", "S", "T", "U", "V",
9 "W", "X", "Y", "Z", "#" };
10 private int choose = -1;
11 private Paint paint = new Paint();
12
13 private TextView mTextDialog;
14
15 public void setTextView(TextView mTextDialog) {
16 this.mTextDialog = mTextDialog;
17 }
18
19 public SideBar(Context context, AttributeSet attrs, int defStyle) {
20 super(context, attrs, defStyle);
21 }
22
23 public SideBar(Context context, AttributeSet attrs) {
24 super(context, attrs);
25 }
26
27 public SideBar(Context context) {
28 super(context);
29 }
30
31 protected void onDraw(Canvas canvas) {
32 super.onDraw(canvas);
33 int height = getHeight();
34 int width = getWidth();
35 int singleHeight = height / b.length;
36
37 for (int i = 0; i < b.length; i++) {
38 paint.setColor(Color.parseColor("#333333"));
39 // paint.setColor(Color.WHITE);
40 paint.setAntiAlias(true);
41 paint.setTextSize(14);
42 if (i == choose) {
43 paint.setColor(Color.parseColor("#B8B8B8"));
44 paint.setFakeBoldText(true);
45 }
46 float xPos = width / 2 - paint.measureText(b[i]) / 2;
47 float yPos = singleHeight * i + singleHeight;
48 canvas.drawText(b[i], xPos, yPos, paint);
49 paint.reset();
50 }
51
52 }
53
54 @Override
55 public boolean dispatchTouchEvent(MotionEvent event) {
56 final int action = event.getAction();
57 final float y = event.getY();
58 final int oldChoose = choose;
59 final OnTouchingLetterChangedListener listener = onTouchingLetterChangedListener;
60 final int c = (int) (y / getHeight() * b.length);
61
62 switch (action) {
63 case MotionEvent.ACTION_UP:
64 setBackgroundDrawable(new ColorDrawable(0x00000000));
65 choose = -1;//
66 invalidate();
67 if (mTextDialog != null) {
68 mTextDialog.setVisibility(View.INVISIBLE);
69 }
70 break;
71
72 default:
73 // setBackgroundResource(R.drawable.sidebar_background);
74 if (oldChoose != c) {
75 if (c >= 0 && c < b.length) {
76 if (listener != null) {
77 listener.onTouchingLetterChanged(b[c]);
78 }
79 if (mTextDialog != null) {
80 mTextDialog.setText(b[c]);
81 mTextDialog.setVisibility(View.VISIBLE);
82 }
83
84 choose = c;
85 invalidate();
86 }
87 }
88
89 break;
90 }
91 return true;
92 }
93
94 public void setOnTouchingLetterChangedListener(
95 OnTouchingLetterChangedListener onTouchingLetterChangedListener) {
96 this.onTouchingLetterChangedListener = onTouchingLetterChangedListener;
97 }
98
99 public interface OnTouchingLetterChangedListener {
100 void onTouchingLetterChanged(String s);
101 }
102
103 }
接下来是整个布局的部署了activity_sortlist
1 <FrameLayout xmlns:android="http://schemas.android.com/apk/res/android" 2 android:id="@+id/layout_main" 3 android:layout_width="fill_parent" 4 android:layout_height="fill_parent"> 5 6 <ListView 7 android:id="@+id/country_lvcountry" 8 android:layout_width="fill_parent" 9 android:layout_height="fill_parent" 10 android:layout_gravity="center" 11 android:divider="#eeeeee" 12 android:dividerHeight="1px" /> 13 14 <LinearLayout 15 android:id="@+id/top_layout" 16 android:layout_width="fill_parent" 17 android:layout_height="wrap_content" 18 android:background="#f2f2f2"> 19 20 <TextView 21 android:id="@+id/top_char" 22 android:layout_width="wrap_content" 23 android:layout_height="wrap_content" 24 android:paddingBottom="3dip" 25 android:paddingLeft="10dip" 26 android:paddingTop="3dip" 27 android:text="" 28 android:textColor="#333333" 29 android:textSize="14sp" /> 30 </LinearLayout> 31 32 <TextView 33 android:id="@+id/dialog" 34 android:layout_width="80dp" 35 android:layout_height="80dp" 36 android:layout_gravity="center" 37 android:background="#999999" 38 android:gravity="center" 39 android:textColor="#ffffffff" 40 android:textSize="30dp" 41 android:visibility="invisible" /> 42 43 <com.app.activitys.view.SideBar 44 android:id="@+id/sidrbar" 45 android:layout_width="25.0dip" 46 android:layout_height="fill_parent" 47 android:layout_gravity="right|center" 48 android:layout_marginBottom="10dp" 49 android:layout_marginTop="10dp" /> 50 51 52 </FrameLayout>
接下来时使用了Sortlist
@ContentView(R.layout.activity_sortlist)
public class Sortlist extends BaseAppActivity {
private String[] strzimu = {"A", "B", "C", "D", "E", "F", "G", "H", "I", "J", "K", "L", "M", "N", "O", "P", "Q", "R", "S", "T", "U", "V", "W", "X", "Y", "Z", " "};
private CharacterParser characterParser;
private PinyinComparator pinyinComparator;
private List<MyBrandListSortModel> SourceDateList; // 数据
private BrandSortAdapter adapter; // 排序的适配器
String staus="";
private int lastFirstVisibleItem = -1;
@ViewInject(R.id.country_lvcountry)
private ListView sortListView;
@ViewInject(R.id.sidrbar)
private SideBar sideBar;
@ViewInject(R.id.dialog)
private TextView dialog;
@ViewInject(R.id.top_layout)
private LinearLayout xuanfuLayout;
@ViewInject(R.id.top_char)
private TextView xuanfaText;
@Override
protected void init() {
characterParser = CharacterParser.getInstance();
pinyinComparator = new PinyinComparator();
sideBar.setTextView(dialog);
SourceDateList = new ArrayList<>();
SourceDateList = filledData(SourceDateList);
Collections.sort(SourceDateList, pinyinComparator);//这是设置adapter
adapter = new BrandSortAdapter(this, SourceDateList);
sortListView.setAdapter(adapter);
initEvent();
}
@Override
public void onResume() {
super.onResume();
getData();
}
private void initEvent() {//listview的监听事件
sideBar.setOnTouchingLetterChangedListener(new SideBar.OnTouchingLetterChangedListener() {
@Override
public void onTouchingLetterChanged(String s) {
int position = adapter.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) {
//这边是点击处理的事件，大家自己随意写啊
}
});
/**
* 设置滚动监听， 实时跟新悬浮的字母的值
*/
sortListView.setOnScrollListener(new AbsListView.OnScrollListener() {
@Override
public void onScrollStateChanged(AbsListView view, int scrollState) {
// TODO Auto-generated method stub
}
@Override
public void onScroll(AbsListView view, int firstVisibleItem,
int visibleItemCount, int totalItemCount) {
// Log.e("zzzzzzzz", "-----firstVisibleItem--->" + firstVisibleItem);
int section = adapter.getSectionForPosition(firstVisibleItem);
int nextSecPosition = -1;
if (!String.valueOf((char) section).equals(" ")) {
for (int i = 1; i < 26; i++) {
if (adapter.getPositionForSection(section + i) == -1) {
} else {
nextSecPosition = adapter.getPositionForSection(section + i);
// Log.e("nextSecPosition", "-----nextSecPosition--->"+nextSecPosition );
break;
}
if (i == 25) {
nextSecPosition = firstVisibleItem + 1;
// Log.e("nextSecPosition2", "-----nextSecPosition2--->"+nextSecPosition );
}
}
}
if ((firstVisibleItem != lastFirstVisibleItem) && adapter.getCount() > 0) {
ViewGroup.MarginLayoutParams params = (ViewGroup.MarginLayoutParams) xuanfuLayout
.getLayoutParams();
params.topMargin = 0;
xuanfuLayout.setLayoutParams(params);
xuanfaText.setText(String.valueOf((char) section));
}
if (nextSecPosition == firstVisibleItem + 1) {
// Log.e("nextSecPosition", "-----nextSecPosition--->" );
View childView = view.getChildAt(0);
if (childView != null) {
int titleHeight = xuanfuLayout.getHeight();
int bottom = childView.getBottom();
ViewGroup.MarginLayoutParams params = (ViewGroup.MarginLayoutParams) xuanfuLayout
.getLayoutParams();
if (bottom < titleHeight) {
float pushedDistance = bottom - titleHeight;
params.topMargin = (int) pushedDistance;
xuanfuLayout.setLayoutParams(params);
} else {
if (params.topMargin != 0) {
params.topMargin = 0;
xuanfuLayout.setLayoutParams(params);
}
}
}
}
lastFirstVisibleItem = firstVisibleItem;
}
});
}
void getData(){//获取数据
EGRequestParams params=new EGRequestParams();String url="";//这边是接口
HttpUtil.post(this, url, params, new HttpUtil.Ok() {
@Override
public void success(String str) {//通过modle将数据放入SourceDateList中
SourceDateList = JSON.parseArray(str, MyBrandListSortModel.class);
if (SourceDateList.size() > 0) {
SourceDateList = filledData(SourceDateList);
Collections.sort(SourceDateList, pinyinComparator);
}
updataview();
}
@Override
public void complete(String str) {
}
});
}
private void updataview() {
adapter = new BrandSortAdapter(this, SourceDateList);
sortListView.setAdapter(adapter);
int section = adapter.getSectionForPosition(0);
ViewGroup.MarginLayoutParams params = (ViewGroup.MarginLayoutParams) xuanfuLayout
.getLayoutParams();
params.topMargin = 0;
xuanfuLayout.setLayoutParams(params);
xuanfaText.setText(String.valueOf((char) section));
}
public class PinyinComparator implements Comparator<MyBrandListSortModel> {
public int compare(MyBrandListSortModel o1, MyBrandListSortModel o2) {
if (o1.getSortLetters().equals(" ") || !o2.getSortLetters().equals(" ")) {
return 1;
} else if (!o1.getSortLetters().equals(" ")
|| o2.getSortLetters().equals(" ")) {
return -1;
} else {
return o1.getSortLetters().compareTo(o2.getSortLetters());
}
}
}
/**
* 填充数据
*
* @param date
* @return
*/
private List<MyBrandListSortModel> filledData(List<MyBrandListSortModel> date) {
List<MyBrandListSortModel> mSortList = new ArrayList<MyBrandListSortModel>();
List<MyBrandListSortModel> mSortListTemp = new ArrayList<MyBrandListSortModel>();
mSortListTemp = date;
if (date.size() == 0) {
return mSortList;
}
for (int i = 0; i < date.size(); i++) {
String pinyin = characterParser.getSelling(date.get(i).getName());
String sortString = pinyin.substring(0, 1).toUpperCase();
if (sortString.matches("[A-Z]")) {
date.get(i).setSortLetters(sortString.toUpperCase());
} else {
date.get(i).setSortLetters(" ");
}
}
for (int i = 0; i < 27; i++) {
MyBrandListSortModel tempmodel = new MyBrandListSortModel();
for (int j = 0; j < date.size(); j++) {
Integer current = Integer.valueOf(mSortListTemp.get(j).getSortLetters().charAt(0));
Integer current2 = Integer.valueOf(strzimu[i].charAt(0));
if (current == current2) {
mSortList.add(date.get(j));
}
}
}
return mSortList;
}
}
接下来把Adapter也送上吧！（BrandSortAdapter）
1 public class BrandSortAdapter extends BaseListAdapter {
2 private List<MyBrandListSortModel> list = null;
3 private Context mContext;
4
5 public BrandSortAdapter(Context context, List<MyBrandListSortModel> list) {
6 super(context, list);
7 this.list=list;
8 this.mContext=context;
9 }
10
11 public int getCount() {
12 return this.list.size();
13 }
14
15 public Object getItem(int position) {
16 return list.get(position);
17 }
18
19 public long getItemId(int position) {
20 return position;
21 }
22
23 public View getView(final int position, View view, ViewGroup arg2) {
24 ViewHolder viewHolder = null;
25 final MyBrandListSortModel mContent = list.get(position);
26 if (view == null) {
27 viewHolder = new ViewHolder();
28 view = LayoutInflater.from(mContext).inflate(R.layout.list_item_mycarbrand, null);
29 viewHolder.tvTitle = (TextView) view
30 .findViewById(R.id.tv_user_item_name);
31 viewHolder.tvLetter = (TextView) view.findViewById(R.id.catalog);
32 view.setTag(viewHolder);
33 } else {
34 viewHolder = (ViewHolder) view.getTag();
35 }
36 int section;
37 if (list.size()>0){
38 section = getSectionForPosition(position);
39 }else{
40 section = 0;
41 }
42 if (position == getPositionForSection(section)) {
43 viewHolder.tvLetter.setVisibility(View.VISIBLE);
44 viewHolder.tvLetter.setText(mContent.getSortLetters());
45 } else {
46 viewHolder.tvLetter.setVisibility(View.GONE);
47 }
48 MyBrandListSortModel model = list.get(position);
49 String realname="- -";
50 if (!StringUtils.isEmpty(model.getName())){
51 realname=model.getName();
52 }
53 viewHolder.tvTitle.setText(realname);
54 // 头像采用imageloader加载
55
56 return view;
57
58 }
59
60 final static class ViewHolder {
61 TextView tvLetter;
62 TextView tvTitle;
63 }
64
65 /**
66 * 得到首字母的ascii值
67 */
68 public int getSectionForPosition(int position) {
69 return list.size()>0?list.get(position).
70 getSortLetters().
71 charAt(0):Integer.valueOf(‘ ‘);
72
73
74 }
75
76 public int getPositionForSection(int section) {
77 for (int i = 0; i < getCount(); i++) {
78 String sortStr = list.get(i).getSortLetters();
79 char firstChar = sortStr.toUpperCase().charAt(0);
80 if (firstChar == section) {
81 return i;
82 }
83 }
84
85 return -1;
86 }
87
88 public String getAlpha(String str) {
89 String sortStr = str.trim().substring(0, 1).toUpperCase();
90 if (sortStr.matches("[A-Z]")) {
91 return sortStr;
92 } else {
93 return " ";
94 }
95 }
96
97 public Object[] getSections() {
98 return null;
99 }
100 }
modle也送给大家吧！MyBrandListSortModel
1 public class MyBrandListSortModel extends Entity implements Serializable{
2
3 private String id;
4 private String children;
5 private String name;
6 private String parentid;
7 private String parentids;
8 private String parentname;
9 private String type;
10 private String value;
11 private String sortLetters;
12
13 public String getId() {
14 return id;
15 }
16
17 public void setId(String id) {
18 this.id = id;
19 }
20
21 public String getSortLetters() {
22 return sortLetters;
23 }
24
25 public void setSortLetters(String sortLetters) {
26 this.sortLetters = sortLetters;
27 }
28
29 public void setChildren(String children) {
30 this.children = children;
31 }
32 public String getChildren() {
33 return children;
34 }
35
36 public void setName(String name) {
37 this.name = name;
38 }
39
40 public String getName() {
41 return name;
42 }
43
44 public void setParentid(String parentid) {
45 this.parentid = parentid;
46 }
47
48 public String getParentid() {
49 return parentid;
50 }
51
52 public void setParentids(String parentids) {
53 this.parentids = parentids;
54 }
55
56 public String getParentids() {
57 return parentids;
58 }
59
60 public void setParentname(String parentname) {
61 this.parentname = parentname;
62 }
63
64 public String getParentname() {
65 return parentname;
66 }
67
68 public void setType(String type) {
69 this.type = type;
70 }
71
72 public String getType() {
73 return type;
74 }
75
76 public void setValue(String value) {
77 this.value = value;
78 }
79
80 public String getValue() {
81 return value;
82 }
83 }
大家参考吧！
时间： 2024-08-08 12:22:49