SerialChatpublic class SerialChat extends android.app.Activity implements Runnable, TextView.OnEditorActionListener
| Fields Summary |
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| private static final String | TAG | | private android.widget.TextView | mLog | | private android.widget.EditText | mEditText | | private ByteBuffer | mInputBuffer | | private ByteBuffer | mOutputBuffer | | private android.hardware.SerialManager | mSerialManager | | private android.hardware.SerialPort | mSerialPort | | private boolean | mPermissionRequestPending | | private static final int | MESSAGE_LOG | | android.os.Handler | mHandler |
| Methods Summary |
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| public void | onCreate(android.os.Bundle savedInstanceState)
super.onCreate(savedInstanceState);
mSerialManager = (SerialManager)getSystemService(Context.SERIAL_SERVICE);
setContentView(R.layout.serial_chat);
mLog = (TextView)findViewById(R.id.log);
mEditText = (EditText)findViewById(R.id.message);
mEditText.setOnEditorActionListener(this);
if (false) {
mInputBuffer = ByteBuffer.allocateDirect(1024);
mOutputBuffer = ByteBuffer.allocateDirect(1024);
} else {
mInputBuffer = ByteBuffer.allocate(1024);
mOutputBuffer = ByteBuffer.allocate(1024);
}
| | public void | onDestroy()
if (mSerialPort != null) {
try {
mSerialPort.close();
} catch (IOException e) {
}
mSerialPort = null;
}
super.onDestroy();
| | public boolean | onEditorAction(android.widget.TextView v, int actionId, android.view.KeyEvent event)
if (/* actionId == EditorInfo.IME_ACTION_DONE && */ mSerialPort != null) {
try {
String text = v.getText().toString();
Log.d(TAG, "write: " + text);
byte[] bytes = text.getBytes();
mOutputBuffer.clear();
mOutputBuffer.put(bytes);
mSerialPort.write(mOutputBuffer, bytes.length);
} catch (IOException e) {
Log.e(TAG, "write failed", e);
}
v.setText("");
return true;
}
Log.d(TAG, "onEditorAction " + actionId + " event: " + event);
return false;
| | public void | onPause()
super.onPause();
| | public void | onResume()
super.onResume();
String[] ports = mSerialManager.getSerialPorts();
if (ports != null && ports.length > 0) {
try {
mSerialPort = mSerialManager.openSerialPort(ports[0], 115200);
if (mSerialPort != null) {
new Thread(this).start();
}
} catch (IOException e) {
}
}
| | public void | run()
Log.d(TAG, "run");
int ret = 0;
byte[] buffer = new byte[1024];
while (ret >= 0) {
try {
Log.d(TAG, "calling read");
mInputBuffer.clear();
ret = mSerialPort.read(mInputBuffer);
Log.d(TAG, "read returned " + ret);
mInputBuffer.get(buffer, 0, ret);
} catch (IOException e) {
Log.e(TAG, "read failed", e);
break;
}
if (ret > 0) {
Message m = Message.obtain(mHandler, MESSAGE_LOG);
String text = new String(buffer, 0, ret);
Log.d(TAG, "chat: " + text);
m.obj = text;
mHandler.sendMessage(m);
}
}
Log.d(TAG, "thread out");
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