android - BufferedReader 没有读取所有行

Question

我正在创建一个使用蓝牙连接与 PC 通信的 Android 应用程序。我正在尝试将 ArrayList 中的项目从 PC 发送到 Android。

Answer 1

尝试刷新输出流并关闭输出流。这应该将缓冲区中的剩余数据刷新到 Android 设备。此外，您需要为每个输出添加一个新的换行符（如果 ArrayList 的值中不存在一个），即在您的 PC 代码上执行以下操作：

            PC Code:


            list = FilterFile.aList;
            for(int z = 0; z < list.size(); z++) {
                int a = list.size();
                System.out.println("in for\n"+list.size());
                String str = list.get(z);
                System.out.println(str);
                out.write((str+"\n").getBytes());
                out.flush();
            }  
            out.close();     


            Android (Client) side code:


            public class ConnectedThread extends Thread {
        private BluetoothSocket mmSocket;
        private InputStream mmInStream = null;
        public OutputStream mmOutStream = null;
        private static final String TAG = "ConnectedThread";
        private static final boolean D = true; 
        int i;
        char a;
        String line;
        String y = "";
        //DataInputStream din=null;

        public ConnectedThread(BluetoothSocket socket) {
            mmSocket = socket;
            InputStream tmpIn = null;
            OutputStream tmpOut = null;
            try {
                tmpIn = socket.getInputStream();
                tmpOut = socket.getOutputStream();
            } catch (IOException e) { }

            mmInStream = tmpIn;
            mmOutStream = tmpOut;
            //din = new DataInputStream(mmInStream);
            if (D) Log.e(TAG, "-- in connected() --");
        }

        public void run() {
            if (D) Log.e(TAG, "-- ConnectedThread --");                 
        }

        public void write(byte[] bytes) {
            try {
                mmOutStream.write(bytes);
            } catch (IOException e) { }
        }

        public String readList() {

                        String data = "";
            try {
                byte buff[] = new byte[1024];
                int count = -1;

                while((count = mmInStream.read(buff, 0, 1024)) != -1){
                    data += new String(buff,0,count);
                }
                String lines[] = data.split("\n");

                for(int i = 0; i < lines.length; i++){

                    //this will print your individual lines...
                    System.out.println(lines[i]);
                }


            } catch (Exception e) {
                ///print your error message here
            }   
            finally{
            if(in != null){
                try {
                mmInStream.close();
                } catch (Exception e) {
                e.printStackTrace();
                }
            }
           }
           return data;
            }

        public void cancel() {
            try {
                mmSocket.close();
            } catch (IOException e) { }
        }

}

Answer 2

尝试只调用write一次该方法（并在调用后刷新/关闭缓冲区）：

String str = "";
for(int z = 0; z < list.size(); z++) {
    str += list.get(z);
}

System.out.println(str);
out.write(str.getBytes());
out.flush();
out.close();