Quick and dirty test app for new SerialPort API

Signed-off-by: Mike Lockwood <lockwood@android.com>

1 files changed, 163 insertions, 0 deletions

diff --git a/tests/SerialChat/src/com/android/serialchat/SerialChat.java b/tests/SerialChat/src/com/android/serialchat/SerialChat.java
new file mode 100644
index 0000000..faec312
--- /dev/null
+++ b/tests/SerialChat/src/com/android/serialchat/SerialChat.java
@@ -0,0 +1,163 @@
+/*
+ * Copyright (C) 2011 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.serialchat;
+
+import android.app.Activity;
+import android.content.Context;
+import android.hardware.SerialManager;
+import android.hardware.SerialPort;
+import android.os.Bundle;
+import android.os.Handler;
+import android.os.Message;
+import android.os.ParcelFileDescriptor;
+import android.view.KeyEvent;
+import android.view.View;
+import android.view.inputmethod.EditorInfo;
+import android.util.Log;
+import android.widget.EditText;
+import android.widget.TextView;
+
+import java.nio.ByteBuffer;
+import java.io.IOException;
+
+public class SerialChat extends Activity implements Runnable, TextView.OnEditorActionListener {
+
+    private static final String TAG = "SerialChat";
+
+    private TextView mLog;
+    private EditText mEditText;
+    private ByteBuffer mInputBuffer;
+    private ByteBuffer mOutputBuffer;
+    private SerialManager mSerialManager;
+    private SerialPort mSerialPort;
+    private boolean mPermissionRequestPending;
+
+    private static final int MESSAGE_LOG = 1;
+
+    @Override
+    public void onCreate(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);
+        }
+    }
+
+    @Override
+    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) {
+            }
+        }
+
+    }
+
+    @Override
+    public void onPause() {
+        super.onPause();
+    
+    }
+
+    @Override
+    public void onDestroy() {
+        if (mSerialPort != null) {
+            try {
+                mSerialPort.close();
+            } catch (IOException e) {
+            }
+            mSerialPort = null;
+        }
+        super.onDestroy();
+    }
+
+    public boolean onEditorAction(TextView v, int actionId, 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 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");
+    }
+
+   Handler mHandler = new Handler() {
+        @Override
+        public void handleMessage(Message msg) {
+            switch (msg.what) {
+                case MESSAGE_LOG:
+                    mLog.setText(mLog.getText() + (String)msg.obj);
+                    break;
+             }
+        }
+    };
+}
+
+