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：
