android.app.IServiceConnection#asBinder ( )源码实例Demo

public static ServiceConnectionDelegate getDelegate(IServiceConnection conn) {
    if(conn instanceof ServiceConnectionDelegate){
        return (ServiceConnectionDelegate)conn;
    }
    IBinder binder = conn.asBinder();
    ServiceConnectionDelegate delegate = DELEGATE_MAP.get(binder);
    if (delegate == null) {
        delegate = new ServiceConnectionDelegate(conn);
        DELEGATE_MAP.put(binder, delegate);
    }
    return delegate;
}
 

public boolean containConnection(IServiceConnection connection) {
	for (IServiceConnection con : connections) {
		if (con.asBinder() == connection.asBinder()) {
			return true;
		}
	}
	return false;
}
 

public void removeConnection(IServiceConnection connection) {
	synchronized (connections) {
		Iterator<IServiceConnection> iterator = connections.iterator();
		while (iterator.hasNext()) {
			IServiceConnection conn = iterator.next();
			if (conn.asBinder() == connection.asBinder()) {
				iterator.remove();
			}
		}
	}
}
 

boolean unbindServiceLocked(IServiceConnection connection) {
    IBinder binder = connection.asBinder();
    if (DEBUG_SERVICE) Slog.v(TAG_SERVICE, "unbindService: conn=" + binder);
    ArrayList<ConnectionRecord> clist = mServiceConnections.get(binder);
    if (clist == null) {
        Slog.w(TAG, "Unbind failed: could not find connection for "
              + connection.asBinder());
        return false;
    }

    final long origId = Binder.clearCallingIdentity();
    try {
        while (clist.size() > 0) {
            ConnectionRecord r = clist.get(0);
            removeConnectionLocked(r, null, null);
            if (clist.size() > 0 && clist.get(0) == r) {
                // In case it didn't get removed above, do it now.
                Slog.wtf(TAG, "Connection " + r + " not removed for binder " + binder);
                clist.remove(0);
            }

            if (r.binding.service.app != null) {
                if (r.binding.service.app.whitelistManager) {
                    updateWhitelistManagerLocked(r.binding.service.app);
                }
                // This could have made the service less important.
                if ((r.flags&Context.BIND_TREAT_LIKE_ACTIVITY) != 0) {
                    r.binding.service.app.treatLikeActivity = true;
                    mAm.updateLruProcessLocked(r.binding.service.app,
                            r.binding.service.app.hasClientActivities
                            || r.binding.service.app.treatLikeActivity, null);
                }
                mAm.updateOomAdjLocked(r.binding.service.app, false);
            }
        }

        mAm.updateOomAdjLocked();

    } finally {
        Binder.restoreCallingIdentity(origId);
    }

    return true;
}