摘要： public class MainActivity extends Activity { private EditText pathText; private TextView resultView; private Button downloadButton; private Button stopbutton; private ProgressBar progressBar; //hanlder的作用是用于往创建Hander对象所在的线程所绑定的消息队列发送消息 private Handler handler = new UIHander(); ... 阅读全文

摘要： public class MulThreadDownloader { public static void main(String[] args) throws Exception { String path = "http://192.168.1.100:8080/web/QQWubiSetup.exe"; int threadsize = 3; new MulThreadDownloader().download(path, threadsize); } private void download(String path, int... 阅读全文

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摘要： /** * 通过HttpClient发送Post请求 * @param path 请求路径 * @param params 请求参数 * @param encoding 编码 * @return 请求是否成功 */ private static boolean sendHttpClientPOSTRequest(String path, Map params, String encoding) throws Exception{ List pairs = new ArrayList();//存放请求参数 if(p... 阅读全文

摘要： public class MainActivity extends Activity { private EditText pathText; private ImageView imageView; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); pathText = (EditText) this.... 阅读全文

摘要： 内容提供者对外提供共享数据，需要在清单文件中进行配置，必须在应用的包或者子包下。ContentProvider类public class PersonProvider extends ContentProvider //必须继承ContentProvider类{ private DBOpenHelper dbOpenHelper; private static final UriMatcher MATCHER = new UriMatcher(UriMatcher.NO_MATCH); private static final int PERSONS = 1; pr... 阅读全文

摘要： item.xml MainActivity.javapublic class MainActivity extends Activity { private ListView listView; private PersonService personService; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); ... 阅读全文

摘要： // 通过SQLiteOpenHelper调用如下方法时会返回SQLiteDatabase，通过SQLiteDatabase可以对数据库进行操作getWritableDatabase()getReadableDatabase()public class PersonService { private DBOpenHelper dbOpenHelper; public PersonService(Context context) { this.dbOpenHelper = new DBOpenHelper(context); } public v... 阅读全文

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摘要： person.xml liming 30 zhangxiaoxiao 25 public class PersonService { /** * 获取数据 * @param xml * @return * @throws Exception */ public static List getPersons(InputStream xml) throws Exception{ List persons = null; Person ... 阅读全文