公交查询源码

首发地址：http://www.eoeandroid.com/thread-229366-1-1.html

效果图：

  

 

部分代码：

Transfer：

package com.bus.shenyang.activity;。。。public class Transfer extends Activity {    String[] sumb;    BusDb dbfile;    private SQLiteDatabase database;    boolean state=true;        public void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        dbfile = new BusDb(this);        dbfile.openDatabase();        dbfile.closeDatabase();        setContentView(R.layout.transfer);        final EditText key1 = (EditText) this.findViewById(R.id.editText1);        final EditText key2 = (EditText) this.findViewById(R.id.editText2);        Button query = (Button) this.findViewById(R.id.button1);        final TextView result = (TextView) this.findViewById(R.id.textView3);        database = SQLiteDatabase.openOrCreateDatabase(BusDb.DB_PATH + "/"                + BusDb.DB_NAME, null);        query.setOnClickListener(new View.OnClickListener() {            private int[] countx;            private int[] county;            int busstation1x, busstation1y;            String[] LineStation1;// 经过这个站的所有站点            String[] LineStation2;            String[] linkStation1;            String[] linkStation2;// 一条线路的所有站点            String[] s1;            String[] s2;            private String strlineStation;            private String busstation1;            private String       busstation2;            private String[] LineStation3;            private String[] LineStation4;            private String[] LineStation33;            private String[] LineStation44;            @Override            public void onClick(View v) {                result.setText(" ");                                  busstation1 = key1.getText().toString();                  busstation2 = key2.getText().toString();                System.out.println("1111111111111");                Bus bus1 = chaxun(busstation1);                Bus bus2 = chaxun(busstation2);                System.out.println("bus1=" + bus1);                System.out.println("bus2=" + bus2);                if (bus1 == null || bus2 == null) {                    new AlertDialog.Builder(Transfer.this)                            .setTitle("提示")                            .setMessage("亲。。。。您输入的站点有误")                            .setPositiveButton("请输入",                                    new DialogInterface.OnClickListener() {                                        public void onClick(                                                DialogInterface dialog,                                                int which) {                                        }                                    })                            .show();                } else {                                            StringBuffer station1 = new StringBuffer();                        String str33,str44;                        str33 = bus1.getLine();                        str44 = bus2.getLine();                        LineStation33 = str33.split("→");                        LineStation44 = str44.split("→");                        int LineAmount11 = LineStation33.length;                        int LineAmount22 = LineStation44.length;                        for (int index1 = 0; index1 < LineAmount11; index1++) {                            for (int in1 = 0; in1 < LineAmount22; in1++) {                                                    if(LineStation33[index1].equals(LineStation44[in1]))                                {                                 station1.append(LineStation33[index1]);                                 station1.append("或→");                                 state=false;                                 System.out.println("二站点在同一线路上换乘的");                                }                            }                        }                        result.setText("您输入的二站在同一条线路"+station1.toString());                                            if(state)                                                 {                        System.out.println("二站点不在同一线路上换乘的");                        String str1, str2,str3,str4;                        StringBuffer station = new StringBuffer();                        str1 = bus1.getStation();                        str2 = bus2.getStation();                        str3 = bus1.getLine();                        str4 = bus2.getLine();                                                                        LineStation1 = str1.split("→");                        LineStation2 = str2.split("→");                        LineStation3 = str3.split("→");                        LineStation4 = str4.split("→");                                                int LineAmount1 = LineStation1.length;                        int LineAmount2 = LineStation2.length;                        for (int index = 0; index < LineAmount1; index++) {                            linkStation1 = LineStation1[index].split("、");                            for (int in = 0; in < LineAmount2; in++) {                                linkStation2 = LineStation2[in].split("、");                                 strlineStation=Focus(linkStation1 ,linkStation2,LineStation3[index],LineStation4[in]);                                 station.append(strlineStation);                                 station.append("→");                            }                        }                                                result.setText(station.toString());                                    }                }                                            }            private String Focus(String[] s1,String[] s2,String s3,String s4) {                String stri =" ";                String str3 = "";                String message="";                countx = new int[10];                county = new int[10];                int m, n, m1, n1, i, j, arry = 0;                System.out.println(s1.length+"!!!!!!!!!!!!"+s2.length);                for (i = 0; i < s1.length; i++) {                    for (j = 0; j < s2.length; j++) {                        if (s1[i].equals(s2[j])) {                            str3 = str3 + s1[i];                            message="乘坐"+s3+"在"+s1[i]+"换乘"+s4;                            System.out.println("乘坐"+s3+"在"+s1[i]+"换乘"+s4);                            System.out.println("i=" + i + "--j=" + j);                            countx[arry] = i;                            county[arry] = j;                            arry++;                        }                    }                }                                            return message;            }        });    }    protected Bus chaxun(String busstation) {        Bus bus = new Bus();        StringBuffer lines = new StringBuffer();        StringBuffer station = new StringBuffer();        Cursor cursor = null;        if (busstation != null && !busstation.equals("")                && busstation.length() > 1) {            cursor = database.rawQuery(                    "select id,line,time,station,opposite from bus_line where station like '%"                            + busstation + "%'", null);            if (cursor.moveToNext()) {                if (cursor.getColumnIndex("id") == 0                        || cursor.getColumnIndex("id") == 1) {                    bus.setId(cursor.getInt(cursor.getColumnIndex("id")));                    lines.append(cursor.getString(1));                    lines.append("→");                    station.append(cursor.getString(3));                    station.append("→");                }                while (cursor.moveToNext()) {// 迭代记录集                    // cursor.moveToFirst();                    bus.setId(cursor.getInt(cursor.getColumnIndex("id")));                    System.out.println("id="                            + cursor.getInt(cursor.getColumnIndex("id")));                    lines.append(cursor.getString(1));                    lines.append("→");                    station.append(cursor.getString(3));                    station.append("→");                }                bus.setLine(lines.toString());                bus.setStation(station.toString());                System.out.println("bus.getLine()=" + bus.getLine());                System.out.println("bus.getStation()=" + bus.getStation());            } else {                bus = null;            }        } else {            cursor = null;            bus = null;        }        return bus;    }          @Override        public boolean onKeyDown(int keyCode, KeyEvent event) {            if (keyCode == KeyEvent.KEYCODE_BACK) {                new AlertDialog.Builder(Transfer.this)                        .setIcon(R.drawable.ic_launcher)                        .setTitle("沈阳离线公交")                        .setMessage("你确定退出了哦?")                        .setPositiveButton("确定",                                new DialogInterface.OnClickListener() {                                    public void onClick(DialogInterface arg0,                                            int arg1) {                                        android.os.Process.killProcess(android.os.Process.myPid());                                    }                                }).setNegativeButton("取消", null).show();                return true;            } else {                return super.onKeyDown(keyCode, event);            }        }  }

数据库类 BusDb

package com.bus.shenyang.database;。。。public class BusDb {    private final int BUFFER_SIZE = 400000;public static final String DB_NAME = "shenyang.db"; //保存的数据库文件名public static final String PACKAGE_NAME = "com.bus.shenyang";public static final String DB_PATH = "/data"        + Environment.getDataDirectory().getAbsolutePath() + "/"        + PACKAGE_NAME;  //在手机里存放数据库的位置private SQLiteDatabase database;private Context context;public BusDb(Context context) {    this.context = context;}public void openDatabase() {    this.database = this.openDatabase(DB_PATH + "/" + DB_NAME);}private SQLiteDatabase openDatabase(String dbfile) {    try {        if (!(new File(dbfile).exists())) {//判断数据库文件是否存在，若不存在则执行导入，否则直接打开数据库            InputStream is = this.context.getResources().openRawResource(                    R.raw.shenyang);             FileOutputStream fos = new FileOutputStream(dbfile);            byte[] buffer = new byte[BUFFER_SIZE];            int count = 0;            while ((count = is.read(buffer)) > 0) {                fos.write(buffer, 0, count);            }            fos.close();            is.close();        }        SQLiteDatabase db = SQLiteDatabase.openOrCreateDatabase(dbfile,null);        return db;    } catch (FileNotFoundException e) {        Log.e("Database", "File not found");        e.printStackTrace();    } catch (IOException e) {        Log.e("Database", "IO exception");        e.printStackTrace();    }    return null;}public void closeDatabase() {        this.database.close();    }  }

emptyAdapter

package com.lizheng.little.yiqu.ui.adapter;...public class emptyAdapter extends BaseAdapter{    private LayoutInflater mInflater;        public emptyAdapter(Context context){        this.mInflater = LayoutInflater.from(context);     }    @Override    public int getCount() {        // TODO Auto-generated method stub        return 1;    }    @Override    public Object getItem(int position) {        // TODO Auto-generated method stub        return null;    }    @Override    public long getItemId(int position) {        // TODO Auto-generated method stub        return 0;    }    @Override    public View getView(int position, View convertView, ViewGroup parent) {        // TODO Auto-generated method stub        convertView = mInflater.inflate(R.layout.layout_item, null);        return convertView;    }}

千万注意要下载：