小编Rah*_*dia的帖子

如何使用iText签署pdf？我正在浏览这个LINK 但却不了解my_private_key.pfx.我真的需要数字签名证书吗？请澄清我.提前致谢.

我正在尝试将音频和商店录制到SD卡中以及发送到服务器.当我试图播放录制的声音时,但不是我录制的.如果我录制语音10分钟,它将播放4分钟,即有人按下快进按钮并发出一些嘈杂的声音.我没有得到我错的地方.任何人都可以说我如何解决这个问题(应该播放我记录了多少,即记录10分钟然后应该只播放10分钟).

这是代码..抱歉发布批量代码..

public class Audio_Call extends Activity {
private static final int RECORDER_BPP = 16;
private static final String AUDIO_RECORDER_FILE_EXT_WAV = "AudioRecorder.wav";
private static final String AUDIO_RECORDER_FOLDER = "AudioRecorder";
private static final String AUDIO_RECORDER_TEMP_FILE = "record_temp.raw";
private static final int RECORDER_SAMPLERATE = 8000;
private static final int RECORDER_CHANNELS = AudioFormat.CHANNEL_IN_MONO;
private static final int RECORDER_AUDIO_ENCODING = AudioFormat.ENCODING_PCM_16BIT;

private AudioRecord recorder = null;
// private int bufferSize = 200000;
private int bufferSize = 0;
short[] buffer;
private Thread recordingThread = null; …

可能重复:
如何从模拟器的SD卡中获取所有图片并将其显示在listView中？

我在SD卡下有这么多文件夹.每个文件夹包含图像文件,文本文件和子文件夹.如何在sdcard下的所有文件夹和子文件夹中获取所有图像文件？我需要将所有图像文件路径存储到一个数组中.任何人都可以帮助我.

这是我连接到服务器并在MyUtilitiesActivity中获取响应的方法.

 private static response = "";
public static String send(final Activity act, final String url, final String keys[], final String values[]) 
{ 
    try{
        HttpParams httpParameters = new BasicHttpParams();
        // Set the timeout in milliseconds until a connection is established.

        HttpConnectionParams.setConnectionTimeout(httpParameters, 5000);
        // Set the default socket timeout (SO_TIMEOUT) 
        // in milliseconds which is the timeout for waiting for data.

        HttpConnectionParams.setSoTimeout(httpParameters, 5000);  

        HttpClient httpclient = new DefaultHttpClient(httpParameters);
        if(keys == null && values == null)
        {

            HttpGet get = new HttpGet(url);   
            // …