小编ant*_*kan的帖子

我为下载数据创建了一个意向服务，我想用广播接收和警报管理器重复。我如何调用我的意向服务？我尝试了这个，但没有工作......

public class MyBroadcastReceiver extends BroadcastReceiver {


    @Override

      public void onReceive(Context context, Intent intent) {

          Toast.makeText(context, "Don't panik but your time is up!!!!.",
            Toast.LENGTH_LONG).show();
        // Vibrate the mobile phone
        Vibrator vibrator = (Vibrator)   
context.getSystemService(Context.VIBRATOR_SERVICE);
        vibrator.vibrate(500);

        intent.setData(Uri.parse("http://www.mysite.net/LEDstate.txt"));
        intent.putExtra("urlpath", "http://www.mysite.net/LEDstate.txt");
        //startService(intent);

        context.startService(new Intent(context, DownloadService.class));

        }

公共类 AlarmActivity 扩展 Activity {

@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
}

public void startAlert(View view) {

    EditText text = (EditText) findViewById(R.id.time);

    int i = Integer.parseInt(text.getText().toString());

    Intent intent = new Intent(this, MyBroadcastReceiver.class);

    PendingIntent pendingIntent = …

我是新的android开发人员.

我正在尝试使用此代码从我的网络服务器访问数据....

@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);

    URL url;
    try {
        url = new URL("http://www.mysite.net/LEDstate.txt");

        HttpURLConnection urlConnection = (HttpURLConnection) url
                .openConnection();

        InputStream in = urlConnection.getInputStream();

        InputStreamReader isw = new InputStreamReader(in);

        int data = isw.read();
        while (data != -1) {
            char current = (char) data;
            data = isw.read();
            //System.out.print(current);


            TextView t = (TextView) findViewById(R.id.ledstate);

            t.setText(current); 
        }
    } catch (Exception e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }

}

@Override
public boolean onCreateOptionsMenu(Menu menu) {
    getMenuInflater().inflate(R.menu.activity_main, menu);
    return …