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Commit 25d1fdc3 authored by Mike Lockwood's avatar Mike Lockwood Committed by Mike Lockwood
Browse files

Quick and dirty test app for new SerialPort API 



Signed-off-by: default avatarMike Lockwood <lockwood@android.com>
parent b01e8bf5

tests/SerialChat/Android.mk

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#

# 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.

#



LOCAL_PATH:= $(call my-dir)

include $(CLEAR_VARS)



LOCAL_MODULE_TAGS := tests



LOCAL_SRC_FILES := $(call all-subdir-java-files)



LOCAL_PACKAGE_NAME := SerialChat



include $(BUILD_PACKAGE)

tests/SerialChat/AndroidManifest.xml

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<?xml version="1.0" encoding="utf-8"?>

<!-- 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.

-->



<manifest xmlns:android="http://schemas.android.com/apk/res/android"

        package="com.android.serialchat">



    <uses-permission android:name="android.permission.SERIAL_PORT"/>



    <application android:label="Serial Chat">

        <activity android:name="SerialChat" android:label="Serial Chat">

            <intent-filter>

                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.DEFAULT" />

                <category android:name="android.intent.category.LAUNCHER" />

            </intent-filter>

        </activity>

    </application>

</manifest>

tests/SerialChat/res/layout/serial_chat.xml

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<?xml version="1.0" encoding="utf-8"?>

<!-- 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.

-->



<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"

    android:layout_width="match_parent"

    android:layout_height="match_parent"

    android:orientation="vertical"

    >



    <ScrollView android:id="@+id/scroll"

        android:layout_width="match_parent"

        android:layout_height="0px"

        android:layout_weight="1"

        >

        <TextView android:id="@+id/log"

            android:layout_width="match_parent"

            android:layout_height="wrap_content"

            android:layout_marginTop="25dp"

            android:textSize="12sp"

            android:textColor="#ffffffff"

            />

    </ScrollView>



    <EditText android:id="@+id/message"

        android:layout_width="match_parent"

        android:layout_height="wrap_content"

        android:capitalize="sentences"

        android:autoText="true"

        android:singleLine="true"

        />



</LinearLayout>

tests/SerialChat/src/com/android/serialchat/SerialChat.java

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/*

 * 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;

             }

        }

    };

}