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Add new Usb.ACTION_USB_STATE sticky broadcast for monitoring USB connect state

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This can be used instead of ACTION_USB_CONNECTED and ACTION_USB_DISCONNECTED
by clients that need to be informed of both USB connect and disconnect events

Change-Id: Ic26927af2e775c2694d18775f9d574c97b095dfd
Signed-off-by: Mike Lockwood <lockwood@android.com>
This commit is contained in:
Mike Lockwood
2010-06-28 09:58:58 -04:00
parent 9005e7f429
commit 709981eeed
2 changed files with 41 additions and 10 deletions
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30
services/java/com/android/server/UsbObserver.java
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@@ -159,6 +159,16 @@ class UsbObserver extends UEventObserver {
}
private final Handler mHandler = new Handler() {
private void addEnabledFunctions(Intent intent) {
// include state of all USB functions in our extras
for (int i = 0; i < mEnabledFunctions.size(); i++) {
intent.putExtra(mEnabledFunctions.get(i), Usb.USB_FUNCTION_ENABLED);
}
for (int i = 0; i < mDisabledFunctions.size(); i++) {
intent.putExtra(mDisabledFunctions.get(i), Usb.USB_FUNCTION_DISABLED);
}
}
@Override
public void handleMessage(Message msg) {
switch (msg.what) {
@@ -174,21 +184,21 @@ class UsbObserver extends UEventObserver {
// Send an Intent containing connected/disconnected state
// and the enabled/disabled state of all USB functions
Intent intent;
if (mUsbConfig != 0) {
boolean usbConnected = (mUsbConfig != 0);
if (usbConnected) {
intent = new Intent(Usb.ACTION_USB_CONNECTED);
// include state of all USB functions in our extras
for (int i = 0; i < mEnabledFunctions.size(); i++) {
intent.putExtra(mEnabledFunctions.get(i), Usb.USB_FUNCTION_ENABLED);
}
for (int i = 0; i < mDisabledFunctions.size(); i++) {
intent.putExtra(mDisabledFunctions.get(i), Usb.USB_FUNCTION_DISABLED);
}
addEnabledFunctions(intent);
} else {
intent = new Intent(Usb.ACTION_USB_DISCONNECTED);
}
mContext.sendBroadcast(intent);
mContext.sendBroadcast(intent, android.Manifest.permission.ACCESS_USB);
// send a sticky broadcast for clients interested in both connect and disconnect
intent = new Intent(Usb.ACTION_USB_STATE);
intent.addFlags(Intent.FLAG_RECEIVER_REPLACE_PENDING);
intent.putExtra(Usb.USB_CONNECTED, usbConnected);
addEnabledFunctions(intent);
mContext.sendStickyBroadcast(intent);
}
break;
}