TF card plug-in monitor

By registering the monitoring interface, we can know the status of the TF card; here we first need to implement our own monitoring class :

#include "os/MountMonitor.h"

class MyMountListener : public MountMonitor::IMountListener {
public:
    virtual void notify(int what, int status, const char *msg) {
        switch (status) {
        case MountMonitor::E_MOUNT_STATUS_MOUNTED:    // insert
            // msg is the mount path
            LOGD("mount path: %s\n", msg);
            mMountTextviewPtr->setText("TF inserted");
            break;

        case MountMonitor::E_MOUNT_STATUS_REMOVE:    // remove
            // msg is the unmount path
            LOGD("remove path: %s\n", msg);
            mMountTextviewPtr->setText("TF removed");
            break;
        }
    }
};

Define the listener :

static MyMountListener sMyMountListener;

Register to monitor :

MOUNTMONITOR->addMountListener(&sMyMountListener);

When we no longer need to monitor, we need to un-register the monitor :

MOUNTMONITOR->removeMountListener(&sMyMountListener);

For specific operations, refer to the MountDemo project in Sample Code