android.hardware.usb
UsbAccessory

Android UsbAccessory - top ranked examples from Open Source projects

These code examples were ranked by Codota’s semantic indexing as the best open source examples for Android UsbAccessory class.

githubCode example from Github project android/platform_frameworks_base, UsbDisconnectedReceiver.java »
This code example shows how to use the following methods:equals
7
CodeRank
githubCode example from Github project AOKP/frameworks_base_disabled, UsbDisconnectedReceiver.java »
This code example shows how to use the following methods:equals
6
CodeRank
githubCode example from Github project CyanMobile/android_frameworks_base_cyanmobile, UsbDeviceSettingsManager.java »
This code example shows how to use the following methods:getManufacturer, getModel, getVersion
            mModel = model;
            mVersion = version;
        } 
 
        public AccessoryFilter(UsbAccessory accessory) {
            mManufacturer = accessory.getManufacturer();
            mModel = accessory.getModel();
            mVersion = accessory.getVersion();
        } 
 
        public static AccessoryFilter read(XmlPullParser parser)
                throws XmlPullParserException, IOException { 
            String manufacturer = null;
            String model = null;
            String version = null;
 
            int count = parser.getAttributeCount();
            for (int i = 0; i < count; i++) {
                String name = parser.getAttributeName(i);
                String value = parser.getAttributeValue(i);
5
CodeRank
githubCode example from Github project follower/android-arduino-handbag, UsbAccessoryHandlerHoneycomb.java »
This code example shows how to use the following methods:equals
		 
	} 
	 
	public boolean matchesThisAccessory(Intent intent) { // TODO: Name this something better
		UsbAccessory accessory = (UsbAccessory) intent.getParcelableExtra(UsbManager.EXTRA_ACCESSORY);
		return accessory != null && accessory.equals(mAccessory);
	} 
	 
	 
	public boolean hasPermission(Object theAccessoryObj) {
		return mUsbManager.hasPermission((UsbAccessory) theAccessoryObj);
	} 
	 
	public Object getConnectedAccessory() {
		UsbAccessory[] accessories = mUsbManager.getAccessoryList();
		UsbAccessory accessory = (accessories == null ? null : accessories[0]);
		return accessory;
	} 
 
	public Object getAccessory() {
5
CodeRank
githubCode example from Github project follower/android-arduino-handbag, UsbAccessoryHandlerHoneycomb.java »
This code example shows how to use the following methods:equals
	public boolean matchesThisAccessory(Intent intent) { // TODO: Name this something better
 
        Log.d(this.getClass().getSimpleName(), "In matchesThisAccessory mAccessory is: " + mAccessory);
 
		UsbAccessory accessory = (UsbAccessory) intent.getParcelableExtra(UsbManager.EXTRA_ACCESSORY);
		return (accessory != null) && accessory.equals(mAccessory);
	} 
 
 
	public boolean hasPermission(Object theAccessoryObj) {
		return mUsbManager.hasPermission((UsbAccessory) theAccessoryObj);
	} 
 
	public Object getConnectedAccessory() {
		UsbAccessory[] accessories = mUsbManager.getAccessoryList();
		UsbAccessory accessory = (accessories == null ? null : accessories[0]);
		return accessory;
	} 
 
	public Object getAccessory() {
5
CodeRank
githubCode example from Github project mattstock/android-tinyg, USBAccessoryService.java »
This code example shows how to use the following methods:equals
		public void onReceive(Context context, Intent intent) {
			String action = intent.getAction();
			if (UsbManager.ACTION_USB_ACCESSORY_DETACHED.equals(action)) {
				UsbAccessory accessory = (UsbAccessory)
		                   intent.getParcelableExtra(UsbManager.EXTRA_ACCESSORY);
				if (accessory != null && accessory.equals(mAccessory)) {
					Log.i(TAG, "closing accessory");
				} 
			} 
		} 
	}; 
	 
	protected class ListenerTask extends AsyncTask<InputStream, String, Void> {
		@Override 
		protected Void doInBackground(InputStream... params) {
			byte[] buffer = new byte[1024];
			InputStream lis = params[0];
			int r_idx;
			int res = 0;
			int idx = 0;
4
CodeRank
githubCode example from Github project Droid-Concepts/frameworks_base, SourceActivity.java »
This code example shows how to use the following methods:getManufacturer, getModel
            mDisplaySourceService = null;
        } 
    } 
 
    private static boolean isSink(UsbAccessory accessory) {
        return MANUFACTURER.equals(accessory.getManufacturer())
                && MODEL.equals(accessory.getModel());
    } 
 
    class TextLogger extends Logger {
        @Override 
        public void log(final String message) {
            Log.d(TAG, message);
 
            mLogTextView.post(new Runnable() {
                @Override 
                public void run() { 
                    mLogTextView.append(message);
                    mLogTextView.append("\n");
                } 
4
CodeRank
githubCode example from Github project fi01/android_frameworks_base, UsbSettingsManager.java »
This code example shows how to use the following methods:getManufacturer, getModel, getVersion
            mModel = model;
            mVersion = version;
        } 
 
        public AccessoryFilter(UsbAccessory accessory) {
            mManufacturer = accessory.getManufacturer();
            mModel = accessory.getModel();
            mVersion = accessory.getVersion();
        } 
 
        public static AccessoryFilter read(XmlPullParser parser)
                throws XmlPullParserException, IOException { 
            String manufacturer = null;
            String model = null;
            String version = null;
 
            int count = parser.getAttributeCount();
            for (int i = 0; i < count; i++) {
                String name = parser.getAttributeName(i);
                String value = parser.getAttributeValue(i);
4
CodeRank
More examples ⏬

Related Android UsbAccessory Questions & Answers:

USB host for android 
7:	        if (ACTION_USB_PERMISSION.equals(action)) {
8:	            synchronized (this) {
9:	                UsbAccessory accessory = (UsbAccessory) intent.getParcelableExtra(UsbManager.EXTRA_ACCESSORY);
10:	
11:	                if (intent.getBooleanExtra(UsbManager.EXTRA_PERMISSION_GRANTED, false)) {
-
7:	        if (ACTION_USB_PERMISSION.equals(action)) {
8:	            synchronized (this) {
9:	                UsbAccessory accessory = (UsbAccessory) intent.getParcelableExtra(UsbManager.EXTRA_ACCESSORY);
10:	
11:	                if (intent.getBooleanExtra(UsbManager.EXTRA_PERMISSION_GRANTED, false)) {

EDIT: Permissions aren't actually needed if defined in XML, so the answer below does not apply. The issue was an NPE - no such device "deviceName" existed in the code.

It looks like you are not obtaining permission to use the USB accessory, as described here in the docs and in this answer.

In your onCreate():

UsbManager mUsbManager = (UsbManager) getSystemService(Context.USB_SERVICE);
private static final String ACTION_USB_PERMISSION =
    "com.android.example.USB_PERMISSION";
...
mPermissionIntent = PendingIntent.getBroadcast(this, 0, new Intent(ACTION_USB_PERMISSION), 0);
IntentFilter filter = new IntentFilter(ACTION_USB_PERMISSION);
registerReceiver(mUsbReceiver, filter);

In your Activity:

private static final String ACTION_USB_PERMISSION =
    "com.android.example.USB_PERMISSION";
private final BroadcastReceiver mUsbReceiver = new BroadcastReceiver() {

    public void onReceive(Context context, Intent intent) {
        String action = intent.getAction();
        if (ACTION_USB_PERMISSION.equals(action)) {
            synchronized (this) {
                UsbAccessory accessory = (UsbAccessory) intent.getParcelableExtra(UsbManager.EXTRA_ACCESSORY);

                if (intent.getBooleanExtra(UsbManager.EXTRA_PERMISSION_GRANTED, false)) {
                    if(accessory != null){
                        //call method to set up accessory communication
                    }
                }
                else {
                    Log.d(TAG, "permission denied for accessory " + accessory);
                }
            }
        }
    }
};

To show the dialog to get permission:

UsbAccessory accessory;
...
mUsbManager.requestPermission(accessory, mPermissionIntent);

Read More

See Code Examples for Android UsbAccessory Methods:
  • equals(9)
    Compares this instance with the specified object and indicates if they are equal.
Popular Android Classes