Android中Listview（七）--排序ListView
阿新 • • 發佈：2019-01-05
2.SideBar類就是ListView右側的字母索引View，我們需要使用setTextView(TextView mTextDialog)來設定用來顯示當前按下的字母的TextView,以及使用setOnTouchingLetterChangedListener方法來設定回撥介面，在回撥方法onTouchingLetterChanged(String s)中來處理不同的操作
[java] view plaincopyprint?
ListView的A-Z字母排序和過濾搜尋功能並且實現漢字轉成拼音的功能，我們知道一般我們對聯絡人，城市列表等實現A-Z的排序，因為聯絡人和城市列表我們可以直接從資料庫中獲取他的漢字拼音，而對於一般的資料，我們怎麼實現A-Z的排序，我們需要將漢字轉換成拼音就行了，接下來就帶大家實現一般資料的A-Z排序功能，首先先看下效果圖
上面是一個帶刪除按鈕的EditText，我們在輸入框中輸入可以自動過濾出我們想要的東西，當輸入框中沒有資料自動替換到原來的資料列表，然後下面一個ListView用來顯示資料列表，右側是一個字母索引表，當我們點選不同的字母,ListView會定位到該字母地方，瞭解了佈局之後，我們先看下專案結構吧
我按照專案中類的順序來一一介紹其功能
1.SortModel 一個實體類，裡面一個是ListView的name,另一個就是顯示的name拼音的首字母
- package com.example.sortlistview;
- publicclass SortModel {
- private String name; //顯示的資料
- private String sortLetters; //顯示資料拼音的首字母
- public String getName() {
- returnname;
- }
- publicvoid setName(String name) {
- this.name = name;
- }
- public String getSortLetters() {
- return sortLetters;
- }
- publicvoid setSortLetters(String sortLetters) {
- this.sortLetters = sortLetters;
- }
- }
package com.example.sortlistview; public class SortModel { private String name; //顯示的資料 private String sortLetters; //顯示資料拼音的首字母 public String getName() { return name; } public void setName(String name) { this.name = name; } public String getSortLetters() { return sortLetters; } public void setSortLetters(String sortLetters) { this.sortLetters = sortLetters; } }
2.SideBar類就是ListView右側的字母索引View，我們需要使用setTextView(TextView mTextDialog)來設定用來顯示當前按下的字母的TextView,以及使用setOnTouchingLetterChangedListener方法來設定回撥介面，在回撥方法onTouchingLetterChanged(String s)中來處理不同的操作
[java] view plaincopyprint?
- package com.example.sortlistview;
- import android.content.Context;
- import android.graphics.Canvas;
- import android.graphics.Color;
- import android.graphics.Paint;
- import android.graphics.Typeface;
- import android.graphics.drawable.ColorDrawable;
- import android.util.AttributeSet;
- import android.view.MotionEvent;
- import android.view.View;
- import android.widget.TextView;
- publicclass SideBar extends View {
- // 觸控事件
- private OnTouchingLetterChangedListener onTouchingLetterChangedListener;
- // 26個字母
- publicstatic String[] b = { "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", "#" };
- privateint choose = -1;// 選中
- private Paint paint = new Paint();
- private TextView mTextDialog;
- /**
- * 為SideBar設定顯示字母的TextView
- * @param mTextDialog
- */
- publicvoid setTextView(TextView mTextDialog) {
- this.mTextDialog = mTextDialog;
- }
- public SideBar(Context context, AttributeSet attrs, int defStyle) {
- super(context, attrs, defStyle);
- }
- public SideBar(Context context, AttributeSet attrs) {
- super(context, attrs);
- }
- public SideBar(Context context) {
- super(context);
- }
- /**
- * 重寫這個方法
- */
- protectedvoid onDraw(Canvas canvas) {
- super.onDraw(canvas);
- // 獲取焦點改變背景顏色.
- int height = getHeight();// 獲取對應高度
- int width = getWidth(); // 獲取對應寬度
- int singleHeight = height / b.length;// 獲取每一個字母的高度
- for (int i = 0; i < b.length; i++) {
- paint.setColor(Color.rgb(33, 65, 98));
- // paint.setColor(Color.WHITE);
- paint.setTypeface(Typeface.DEFAULT_BOLD);
- paint.setAntiAlias(true);
- paint.setTextSize(20);
- // 選中的狀態
- if (i == choose) {
- paint.setColor(Color.parseColor("#3399ff"));
- paint.setFakeBoldText(true);
- }
- // x座標等於中間-字串寬度的一半.
- float xPos = width / 2 - paint.measureText(b[i]) / 2;
- float yPos = singleHeight * i + singleHeight;
- canvas.drawText(b[i], xPos, yPos, paint);
- paint.reset();// 重置畫筆
- }
- }
- @Override
- publicboolean dispatchTouchEvent(MotionEvent event) {
- finalint action = event.getAction();
- finalfloat y = event.getY();// 點選y座標
- finalint oldChoose = choose;
- final OnTouchingLetterChangedListener listener = onTouchingLetterChangedListener;
- finalint c = (int) (y / getHeight() * b.length);// 點選y座標所佔總高度的比例*b陣列的長度就等於點選b中的個數.
- switch (action) {
- case MotionEvent.ACTION_UP:
- setBackgroundDrawable(new ColorDrawable(0x00000000));
- choose = -1;//
- invalidate();
- if (mTextDialog != null) {
- mTextDialog.setVisibility(View.INVISIBLE);
- }
- break;
- default:
- setBackgroundResource(R.drawable.sidebar_background);
- if (oldChoose != c) {
- if (c >= 0 && c < b.length) {
- if (listener != null) {
- listener.onTouchingLetterChanged(b[c]);
- }
- if (mTextDialog != null) {
- mTextDialog.setText(b[c]);
- mTextDialog.setVisibility(View.VISIBLE);
- }
- choose = c;
- invalidate();
- }
- }
- break;
- }
- returntrue;
- }
- /**
- * 向外公開的方法
- *
- * @param onTouchingLetterChangedListener
- */
- publicvoid setOnTouchingLetterChangedListener(
- OnTouchingLetterChangedListener onTouchingLetterChangedListener) {
- this.onTouchingLetterChangedListener = onTouchingLetterChangedListener;
- }
- /**
- * 介面
- *
- * @author coder
- *
- */
- publicinterface OnTouchingLetterChangedListener {
- publicvoid onTouchingLetterChanged(String s);
- }
- }
package com.example.sortlistview;
import android.content.Context;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Paint;
import android.graphics.Typeface;
import android.graphics.drawable.ColorDrawable;
import android.util.AttributeSet;
import android.view.MotionEvent;
import android.view.View;
import android.widget.TextView;
public class SideBar extends View {
// 觸控事件
private OnTouchingLetterChangedListener onTouchingLetterChangedListener;
// 26個字母
public static String[] b = { "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 int choose = -1;// 選中
private Paint paint = new Paint();
private TextView mTextDialog;
/**
* 為SideBar設定顯示字母的TextView
* @param mTextDialog
*/
public void setTextView(TextView mTextDialog) {
this.mTextDialog = mTextDialog;
}
public SideBar(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
}
public SideBar(Context context, AttributeSet attrs) {
super(context, attrs);
}
public SideBar(Context context) {
super(context);
}
/**
* 重寫這個方法
*/
protected void onDraw(Canvas canvas) {
super.onDraw(canvas);
// 獲取焦點改變背景顏色.
int height = getHeight();// 獲取對應高度
int width = getWidth(); // 獲取對應寬度
int singleHeight = height / b.length;// 獲取每一個字母的高度
for (int i = 0; i < b.length; i++) {
paint.setColor(Color.rgb(33, 65, 98));
// paint.setColor(Color.WHITE);
paint.setTypeface(Typeface.DEFAULT_BOLD);
paint.setAntiAlias(true);
paint.setTextSize(20);
// 選中的狀態
if (i == choose) {
paint.setColor(Color.parseColor("#3399ff"));
paint.setFakeBoldText(true);
}
// x座標等於中間-字串寬度的一半.
float xPos = width / 2 - paint.measureText(b[i]) / 2;
float yPos = singleHeight * i + singleHeight;
canvas.drawText(b[i], xPos, yPos, paint);
paint.reset();// 重置畫筆
}
}
@Override
public boolean dispatchTouchEvent(MotionEvent event) {
final int action = event.getAction();
final float y = event.getY();// 點選y座標
final int oldChoose = choose;
final OnTouchingLetterChangedListener listener = onTouchingLetterChangedListener;
final int c = (int) (y / getHeight() * b.length);// 點選y座標所佔總高度的比例*b陣列的長度就等於點選b中的個數.
switch (action) {
case MotionEvent.ACTION_UP:
setBackgroundDrawable(new ColorDrawable(0x00000000));
choose = -1;//
invalidate();
if (mTextDialog != null) {
mTextDialog.setVisibility(View.INVISIBLE);
}
break;
default:
setBackgroundResource(R.drawable.sidebar_background);
if (oldChoose != c) {
if (c >= 0 && c < b.length) {
if (listener != null) {
listener.onTouchingLetterChanged(b[c]);
}
if (mTextDialog != null) {
mTextDialog.setText(b[c]);
mTextDialog.setVisibility(View.VISIBLE);
}
choose = c;
invalidate();
}
}
break;
}
return true;
}
/**
* 向外公開的方法
*
* @param onTouchingLetterChangedListener
*/
public void setOnTouchingLetterChangedListener(
OnTouchingLetterChangedListener onTouchingLetterChangedListener) {
this.onTouchingLetterChangedListener = onTouchingLetterChangedListener;
}
/**
* 介面
*
* @author coder
*
*/
public interface OnTouchingLetterChangedListener {
public void onTouchingLetterChanged(String s);
}
}3.CharacterParser 這個類是將漢字轉換成拼音的類，該拼音沒有聲調的，該類是單例類，其中定義了三個方法，在這個demo中用到的是getSelling(String chs)方法，將片語轉換成拼音
- package com.example.sortlistview;
- /**
- * Java漢字轉換為拼音
- *
- */
- publicclass CharacterParser {
- privatestaticint[] pyvalue = newint[] {-20319, -20317, -20304, -20295, -20292, -20283, -20265, -20257, -20242, -20230, -20051, -20036, -20032,
- -20026, -20002, -19990, -19986, -19982, -19976, -19805, -19784, -19775, -19774, -19763, -19756, -19751, -19746, -19741, -19739, -19728,
- -19725, -19715, -19540, -19531, -19525, -19515, -19500, -19484, -19479, -19467, -19289, -19288, -19281, -19275, -19270, -19263, -19261,
- -19249, -19243, -19242, -19238, -19235, -19227, -19224, -19218, -19212, -19038, -19023, -19018, -19006, -19003, -18996, -18977, -18961,
- -18952, -18783, -18774, -18773, -18763, -18756, -18741, -18735, -18731, -18722, -18710, -18697, -18696, -18526, -18518, -18501, -18490,
- -18478, -18463, -18448, -18447, -18446, -18239, -18237, -18231, -18220, -18211, -18201, -18184, -18183, -18181, -18012, -17997, -17988,
- -17970, -17964, -17961, -17950, -17947, -17931, -17928, -17922, -17759, -17752, -17733, -17730, -17721, -17703, -17701, -17697, -17692,
- -17683, -17676, -17496, -17487, -17482, -17468, -17454, -17433, -17427, -17417, -17202, -17185, -16983, -16970, -16942, -16915, -16733,
- -16708, -16706, -16689, -16664, -16657, -16647, -16474, -16470, -16465, -16459, -16452, -16448, -16433, -16429, -16427, -16423, -16419,
- -16412, -16407, -16403, -16401, -16393, -16220, -16216, -16212, -16205, -16202, -16187, -16180, -16171, -16169, -16158, -16155, -15959,
- -15958, -15944, -15933, -15920, -15915, -15903, -15889, -15878, -15707, -15701, -15681, -15667, -15661, -15659, -15652, -15640, -15631,
- -15625, -15454, -15448, -15436, -15435, -15419, -15416, -15408, -15394, -15385, -15377, -15375, -15369, -15363, -15362, -15183, -15180,
- -15165, -15158, -15153, -15150, -15149, -15144, -15143, -15141, -15140, -15139, -15128, -15121, -15119, -15117, -15110, -15109, -14941,
- -14937, -14933, -14930, -14929, -14928, -14926, -14922, -14921, -14914, -14908, -14902, -14894, -14889, -14882, -14873, -14871, -14857,
- -14678, -14674, -14670, -14668, -14663, -14654, -14645, -14630, -14594, -14429, -14407, -14399, -14384, -14379, -14368, -14355, -14353,
- -14345, -14170, -14159, -14151, -14149, -14145, -14140, -14137, -14135, -14125, -14123, -14122, -14112, -14109, -14099, -14097, -14094,
- -14092, -14090, -14087, -14083, -13917, -13914, -13910, -13907, -13906, -13905, -13896, -13894, -13878, -13870, -13859, -13847, -13831,
- -13658, -13611, -13601, -13406, -13404, -13400, -13398, -13395, -13391, -13387, -13383, -13367, -13359, -13356, -13343, -13340, -13329,
- -13326, -13318, -13147, -13138, -13120, -13107, -13096, -13095, -13091, -13076, -13068, -13063, -13060, -12888, -12875, -12871, -12860,
- -12858, -12852, -12849, -12838, -12831, -12829, -12812, -12802, -12607, -12597, -12594, -12585, -12556, -12359, -12346, -12320, -12300,
- -12120, -12099, -12089, -12074, -12067, -12058, -12039, -11867, -11861, -11847, -11831, -11798, -11781, -11604, -11589, -11536, -11358,
- -11340, -11339, -11324, -11303, -11097, -11077, -11067, -11055, -11052, -11045, -11041, -11038, -11024, -11020, -11019, -11018, -11014,
- -10838, -10832, -10815, -10800, -10790, -10780, -10764, -10587, -10544, -10533, -10519, -10331, -10329, -10328, -10322, -10315, -10309,
- -10307, -10296, -10281, -10274, -10270, -10262, -10260, -10256, -10254};
- publicstatic String[] pystr = new String[] {"a", "ai", "an", "ang", "ao", "ba", "bai", "ban", "bang", "bao", "bei", "ben", "beng", "bi", "bian",
- "biao", "bie", "bin", "bing", "bo", "bu", "ca", "cai", "can", "cang", "cao", "ce", "ceng", "cha", "chai", "chan", "chang", "chao", "che",
- "chen", "cheng", "chi", "chong", "chou", "chu", "chuai", "chuan", "chuang", "chui", "chun", "chuo", "ci", "cong", "cou", "cu", "cuan",
- "cui", "cun", "cuo", "da", "dai", "dan", "dang", "dao", "de", "deng", "di", "dian", "diao", "die", "ding", "diu", "dong", "dou", "du",
- "duan", "dui", "dun", "duo", "e", "en", "er", "fa", "fan", "fang", "fei", "fen", "feng", "fo", "fou", "fu", "ga", "gai", "gan", "gang",
- "gao", "ge", "gei", "gen", "geng", "gong", "gou", "gu", "gua", "guai", "guan", "guang", "gui", "gun", "guo", "ha", "hai", "han", "hang",
- "hao", "he", "hei", "hen", "heng", "hong", "hou", "hu", "hua", "huai", "huan", "huang", "hui", "hun", "huo", "ji", "jia", "jian",
- "jiang", "jiao", "jie", "jin", "jing", "jiong", "jiu", "ju", "juan", "jue", "jun", "ka", "kai", "kan", "kang", "kao", "ke", "ken",
- "keng", "kong", "kou", "ku", "kua", "kuai", "kuan", "kuang", "kui", "kun", "kuo", "la", "lai", "lan", "lang", "lao", "le", "lei", "leng",
- "li", "lia", "lian", "liang", "liao", "lie", "lin", "ling", "liu", "long", "lou", "lu", "lv", "luan", "lue", "lun", "luo", "ma", "mai",
- "man", "mang", "mao", "me", "mei", "men", "meng", "mi", "mian", "miao", "mie", "min", "ming", "miu", "mo", "mou", "mu", "na", "nai",
- "nan", "nang", "nao", "ne", "nei", "nen", "neng", "ni", "nian", "niang", "niao", "nie", "nin", "ning", "niu", "nong", "nu", "nv", "nuan",
- "nue", "nuo", "o", "ou", "pa", "pai", "pan", "pang", "pao", "pei", "pen", "peng", "pi", "pian", "piao", "pie", "pin", "ping", "po", "pu",
- "qi", "qia", "qian", "qiang", "qiao", "qie", "qin", "qing", "qiong", "qiu", "qu", "quan", "que", "qun", "ran", "rang", "rao", "re",
- "ren", "reng", "ri", "rong", "rou", "ru", "ruan", "rui", "run", "ruo", "sa", "sai", "san", "sang", "sao", "se", "sen", "seng", "sha",
- "shai", "shan", "shang", "shao", "she", "shen", "sheng", "shi", "shou", "shu", "shua", "shuai", "shuan", "shuang", "shui", "shun",