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added MainActivity to synchronous example

pull/75/head
Felipe Herranz 2016-09-17 19:16:39 +02:00
rodzic d15adc3252
commit 5321490a3d
2 zmienionych plików z 209 dodań i 6 usunięć
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213
examplesync/src/main/java/com/felhr/serialportexamplesync/MainActivity.java
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@ -1,9 +1,212 @@
package com.felhr.serialportexamplesync;
import android.app.Activity;
import android.content.BroadcastReceiver;
import android.content.ComponentName;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.content.ServiceConnection;
import android.os.Bundle;
import android.os.Handler;
import android.os.IBinder;
import android.os.Message;
import android.support.v7.app.AppCompatActivity;
import android.view.View;
import android.widget.Button;
import android.widget.CheckBox;
import android.widget.CompoundButton;
import android.widget.EditText;
import android.widget.TextView;
import android.widget.Toast;
/**
* Created by Felipe Herranz(felhr85@gmail.com) on 17/9/16.
*/
public class MainActivity extends Activity{
import java.lang.ref.WeakReference;
import java.util.Set;
public class MainActivity extends AppCompatActivity {
private static final int SYNC_READ = 3;
/*
* Notifications from UsbService will be received here.
*/
private final BroadcastReceiver mUsbReceiver = new BroadcastReceiver() {
@Override
public void onReceive(Context context, Intent intent) {
switch (intent.getAction()) {
case UsbService.ACTION_USB_PERMISSION_GRANTED: // USB PERMISSION GRANTED
Toast.makeText(context, "USB Ready", Toast.LENGTH_SHORT).show();
break;
case UsbService.ACTION_USB_PERMISSION_NOT_GRANTED: // USB PERMISSION NOT GRANTED
Toast.makeText(context, "USB Permission not granted", Toast.LENGTH_SHORT).show();
break;
case UsbService.ACTION_NO_USB: // NO USB CONNECTED
Toast.makeText(context, "No USB connected", Toast.LENGTH_SHORT).show();
break;
case UsbService.ACTION_USB_DISCONNECTED: // USB DISCONNECTED
Toast.makeText(context, "USB disconnected", Toast.LENGTH_SHORT).show();
break;
case UsbService.ACTION_USB_NOT_SUPPORTED: // USB NOT SUPPORTED
Toast.makeText(context, "USB device not supported", Toast.LENGTH_SHORT).show();
break;
}
}
};
private UsbService usbService;
private TextView display;
private EditText editText;
private CheckBox box9600, box38400;
private MyHandler mHandler;
private final ServiceConnection usbConnection = new ServiceConnection() {
@Override
public void onServiceConnected(ComponentName arg0, IBinder arg1) {
usbService = ((UsbService.UsbBinder) arg1).getService();
usbService.setHandler(mHandler);
}
@Override
public void onServiceDisconnected(ComponentName arg0) {
usbService = null;
}
};
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
mHandler = new MyHandler(this);
display = (TextView) findViewById(R.id.textView1);
editText = (EditText) findViewById(R.id.editText1);
Button sendButton = (Button) findViewById(R.id.buttonSend);
sendButton.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
if (!editText.getText().toString().equals("")) {
String data = editText.getText().toString();
if (usbService != null) { // if UsbService was correctly binded, Send data
usbService.write(data.getBytes());
}
}
}
});
Button readButton = (Button) findViewById(R.id.buttonRead);
readButton.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
new Thread(new Runnable() {
@Override
public void run() {
byte[] buffer = usbService.read(10);
mHandler.obtainMessage(SYNC_READ, buffer).sendToTarget();
}
}).start();
}
});
box9600 = (CheckBox) findViewById(R.id.checkBox);
box9600.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
@Override
public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
if(box9600.isChecked())
box38400.setChecked(false);
else
box38400.setChecked(true);
}
});
box38400 = (CheckBox) findViewById(R.id.checkBox2);
box38400.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
@Override
public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
if(box38400.isChecked())
box9600.setChecked(false);
else
box9600.setChecked(true);
}
});
Button baudrateButton = (Button) findViewById(R.id.buttonBaudrate);
baudrateButton.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
if(box9600.isChecked())
usbService.changeBaudRate(9600);
else
usbService.changeBaudRate(38400);
}
});
}
@Override
public void onResume() {
super.onResume();
setFilters(); // Start listening notifications from UsbService
startService(UsbService.class, usbConnection, null); // Start UsbService(if it was not started before) and Bind it
}
@Override
public void onPause() {
super.onPause();
unregisterReceiver(mUsbReceiver);
unbindService(usbConnection);
}
private void startService(Class<?> service, ServiceConnection serviceConnection, Bundle extras) {
if (!UsbService.SERVICE_CONNECTED) {
Intent startService = new Intent(this, service);
if (extras != null && !extras.isEmpty()) {
Set<String> keys = extras.keySet();
for (String key : keys) {
String extra = extras.getString(key);
startService.putExtra(key, extra);
}
}
startService(startService);
}
Intent bindingIntent = new Intent(this, service);
bindService(bindingIntent, serviceConnection, Context.BIND_AUTO_CREATE);
}
private void setFilters() {
IntentFilter filter = new IntentFilter();
filter.addAction(UsbService.ACTION_USB_PERMISSION_GRANTED);
filter.addAction(UsbService.ACTION_NO_USB);
filter.addAction(UsbService.ACTION_USB_DISCONNECTED);
filter.addAction(UsbService.ACTION_USB_NOT_SUPPORTED);
filter.addAction(UsbService.ACTION_USB_PERMISSION_NOT_GRANTED);
registerReceiver(mUsbReceiver, filter);
}
/*
* This handler will be passed to UsbService. Data received from serial port is displayed through this handler
*/
private static class MyHandler extends Handler {
private final WeakReference<MainActivity> mActivity;
public MyHandler(MainActivity activity) {
mActivity = new WeakReference<>(activity);
}
@Override
public void handleMessage(Message msg) {
switch (msg.what) {
case UsbService.MESSAGE_FROM_SERIAL_PORT:
String data = (String) msg.obj;
mActivity.get().display.append(data);
break;
case UsbService.CTS_CHANGE:
Toast.makeText(mActivity.get(), "CTS_CHANGE",Toast.LENGTH_LONG).show();
break;
case UsbService.DSR_CHANGE:
Toast.makeText(mActivity.get(), "DSR_CHANGE",Toast.LENGTH_LONG).show();
break;
case MainActivity.SYNC_READ:
byte[] buffer = (byte[]) msg.obj;
mActivity.get().display.append(new String(buffer));
break;
}
}
}
}

2
examplesync/src/main/res/layout/activity_main.xml
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@ -54,7 +54,7 @@
android:id="@+id/buttonRead"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Read"
android:text="Read 10 bytes"
android:layout_below="@+id/buttonSend"
android:layout_alignParentRight="true"
android:layout_alignParentEnd="true"