kopia lustrzana https://github.com/felHR85/UsbSerial
197 wiersze
7.4 KiB
Java
197 wiersze
7.4 KiB
Java
package com.felhr.serialportexamplesync;
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import android.content.BroadcastReceiver;
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import android.content.ComponentName;
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import android.content.Context;
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import android.content.Intent;
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import android.content.IntentFilter;
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import android.content.ServiceConnection;
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import android.os.Bundle;
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import android.os.Handler;
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import android.os.IBinder;
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import android.os.Message;
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import android.support.v7.app.AppCompatActivity;
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import android.view.View;
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import android.widget.Button;
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import android.widget.CheckBox;
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import android.widget.CompoundButton;
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import android.widget.EditText;
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import android.widget.TextView;
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import android.widget.Toast;
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import java.lang.ref.WeakReference;
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import java.util.Set;
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public class MainActivity extends AppCompatActivity {
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/*
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* Notifications from UsbService will be received here.
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*/
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private final BroadcastReceiver mUsbReceiver = new BroadcastReceiver() {
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@Override
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public void onReceive(Context context, Intent intent) {
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switch (intent.getAction()) {
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case UsbService.ACTION_USB_PERMISSION_GRANTED: // USB PERMISSION GRANTED
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Toast.makeText(context, "USB Ready", Toast.LENGTH_SHORT).show();
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break;
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case UsbService.ACTION_USB_PERMISSION_NOT_GRANTED: // USB PERMISSION NOT GRANTED
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Toast.makeText(context, "USB Permission not granted", Toast.LENGTH_SHORT).show();
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break;
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case UsbService.ACTION_NO_USB: // NO USB CONNECTED
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Toast.makeText(context, "No USB connected", Toast.LENGTH_SHORT).show();
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break;
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case UsbService.ACTION_USB_DISCONNECTED: // USB DISCONNECTED
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Toast.makeText(context, "USB disconnected", Toast.LENGTH_SHORT).show();
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break;
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case UsbService.ACTION_USB_NOT_SUPPORTED: // USB NOT SUPPORTED
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Toast.makeText(context, "USB device not supported", Toast.LENGTH_SHORT).show();
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break;
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}
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}
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};
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private UsbService usbService;
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private TextView display;
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private EditText editText;
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private CheckBox box9600, box38400;
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private MyHandler mHandler;
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private final ServiceConnection usbConnection = new ServiceConnection() {
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@Override
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public void onServiceConnected(ComponentName arg0, IBinder arg1) {
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usbService = ((UsbService.UsbBinder) arg1).getService();
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usbService.setHandler(mHandler);
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}
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@Override
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public void onServiceDisconnected(ComponentName arg0) {
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usbService = null;
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}
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};
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@Override
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protected void onCreate(Bundle savedInstanceState) {
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super.onCreate(savedInstanceState);
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setContentView(R.layout.activity_main);
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mHandler = new MyHandler(this);
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display = (TextView) findViewById(R.id.textView1);
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editText = (EditText) findViewById(R.id.editText1);
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Button sendButton = (Button) findViewById(R.id.buttonSend);
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sendButton.setOnClickListener(new View.OnClickListener() {
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@Override
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public void onClick(View v) {
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if (!editText.getText().toString().equals("")) {
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String data = editText.getText().toString();
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if (usbService != null) { // if UsbService was correctly binded, Send data
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usbService.write(data.getBytes());
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}
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}
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}
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});
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box9600 = (CheckBox) findViewById(R.id.checkBox);
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box9600.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
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@Override
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public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
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if(box9600.isChecked())
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box38400.setChecked(false);
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else
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box38400.setChecked(true);
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}
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});
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box38400 = (CheckBox) findViewById(R.id.checkBox2);
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box38400.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
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@Override
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public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
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if(box38400.isChecked())
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box9600.setChecked(false);
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else
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box9600.setChecked(true);
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}
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});
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Button baudrateButton = (Button) findViewById(R.id.buttonBaudrate);
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baudrateButton.setOnClickListener(new View.OnClickListener() {
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@Override
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public void onClick(View v) {
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if(box9600.isChecked())
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usbService.changeBaudRate(9600);
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else
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usbService.changeBaudRate(38400);
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}
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});
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}
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@Override
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public void onResume() {
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super.onResume();
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setFilters(); // Start listening notifications from UsbService
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startService(UsbService.class, usbConnection, null); // Start UsbService(if it was not started before) and Bind it
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}
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@Override
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public void onPause() {
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super.onPause();
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unregisterReceiver(mUsbReceiver);
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unbindService(usbConnection);
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}
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private void startService(Class<?> service, ServiceConnection serviceConnection, Bundle extras) {
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if (!UsbService.SERVICE_CONNECTED) {
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Intent startService = new Intent(this, service);
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if (extras != null && !extras.isEmpty()) {
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Set<String> keys = extras.keySet();
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for (String key : keys) {
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String extra = extras.getString(key);
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startService.putExtra(key, extra);
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}
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}
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startService(startService);
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}
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Intent bindingIntent = new Intent(this, service);
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bindService(bindingIntent, serviceConnection, Context.BIND_AUTO_CREATE);
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}
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private void setFilters() {
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IntentFilter filter = new IntentFilter();
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filter.addAction(UsbService.ACTION_USB_PERMISSION_GRANTED);
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filter.addAction(UsbService.ACTION_NO_USB);
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filter.addAction(UsbService.ACTION_USB_DISCONNECTED);
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filter.addAction(UsbService.ACTION_USB_NOT_SUPPORTED);
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filter.addAction(UsbService.ACTION_USB_PERMISSION_NOT_GRANTED);
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registerReceiver(mUsbReceiver, filter);
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}
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/*
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* This handler will be passed to UsbService. Data received from serial port is displayed through this handler
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*/
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private static class MyHandler extends Handler {
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private final WeakReference<MainActivity> mActivity;
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public MyHandler(MainActivity activity) {
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mActivity = new WeakReference<>(activity);
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}
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@Override
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public void handleMessage(Message msg) {
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switch (msg.what) {
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case UsbService.MESSAGE_FROM_SERIAL_PORT:
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String data = (String) msg.obj;
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mActivity.get().display.append(data);
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break;
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case UsbService.CTS_CHANGE:
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Toast.makeText(mActivity.get(), "CTS_CHANGE",Toast.LENGTH_LONG).show();
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break;
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case UsbService.DSR_CHANGE:
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Toast.makeText(mActivity.get(), "DSR_CHANGE",Toast.LENGTH_LONG).show();
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break;
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case UsbService.SYNC_READ:
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String buffer = (String) msg.obj;
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mActivity.get().display.append(buffer);
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break;
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}
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}
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}
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}
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