StorageStateManager.java
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package com.sw.laryngoscope.manager;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.net.Uri;
import android.util.Log;
public class StorageStateManager {
public final String TAG = "StorageStateManager";
private static StorageStateManager ourInstance = null;
private BroadcastReceiver mReceiver = null;
private boolean mIsUDiskMount = false;
private String UdiskPath = "/mnt/usbhost/Storage01/";
private Context mContext;
public static StorageStateManager getInstance() {
if ( null == ourInstance ) {
synchronized (StorageStateManager.class) {
if (null == ourInstance ) {
ourInstance = new StorageStateManager();
}
}
}
return ourInstance;
}
private StorageStateManager() {}
/**
* @explain：register and unregister需要成对出现
*/
public void registerReceiver(Context context) {
IntentFilter intentFilter = new IntentFilter();
intentFilter.addAction(Intent.ACTION_MEDIA_EJECT);
intentFilter.addAction(Intent.ACTION_MEDIA_MOUNTED);
intentFilter.addAction(Intent.ACTION_MEDIA_SCANNER_STARTED);
intentFilter.addAction(Intent.ACTION_MEDIA_SCANNER_FINISHED);
intentFilter.addAction(Intent.ACTION_MEDIA_NOFS);
intentFilter.addAction(Intent.ACTION_MEDIA_UNMOUNTED);
intentFilter.addAction(Intent.ACTION_MEDIA_UNMOUNTABLE);
intentFilter.addAction(Intent.ACTION_MEDIA_CHECKING);
intentFilter.addAction(Intent.ACTION_MEDIA_REMOVED);
intentFilter.addAction(Intent.ACTION_MEDIA_SHARED);
intentFilter.addAction(Intent.ACTION_MEDIA_BAD_REMOVAL);
intentFilter.addDataScheme("file");
mReceiver = new StorageBroadcastReceiver();
context.registerReceiver(mReceiver, intentFilter);
mContext = context;
}
/**
* @explain：register and unregister需要成对出现
*/
public void unregisterReceiver(Context context) {
if (mReceiver != null) {
mContext.unregisterReceiver(mReceiver);
mReceiver = null;
}
}
/*public boolean getUdiskState() {
if(Storage.getUDiskTotalSpace(mContext) > 0)
mIsUDiskMount = true;
else
mIsUDiskMount = false;
return mIsUDiskMount;
}*/
public void setUdiskState(boolean state) {
mIsUDiskMount = state;
if( mMountCallBack != null ) {
mMountCallBack.MountEventProc(mIsUDiskMount);
}
if( mCallBack != null ) {
mCallBack.MountEventProc(mIsUDiskMount);
}
}
public String getUdiskPath() {
if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.M) {
//return Storage.getStoragePath(mContext, "usb");
return Storage.getUPath(mContext);
} else {
return UdiskPath;
}
}
public MountCallBack mMountCallBack = null;
public void setMountCallBackFun(MountCallBack cb) {
mMountCallBack = cb;
}
public interface MountCallBack {
public void MountEventProc(boolean mount);
}
public CallBack mCallBack = null;
public void setCallBackFun(CallBack cb) {
mCallBack = cb;
}
public interface CallBack {
public void MountEventProc(boolean mount);
}
/**
* @explain：监听系统插拔SD卡，扫描SD卡广播消息
*/
private class StorageBroadcastReceiver extends BroadcastReceiver {
@Override
public void onReceive(Context context, Intent intent) {
String action = intent.getAction();
Log.d(TAG, "action = " + action);
final Uri uri = intent.getData();
String path = uri.getPath();
if (action.equals(Intent.ACTION_MEDIA_EJECT)) {
Log.d(TAG, "Intent.ACTION_MEDIA_EJECT path = " + path);
if( !path.contains("emulated") ) {
setUdiskState(false);
}
} else if (action.equals(Intent.ACTION_MEDIA_UNMOUNTED)) {
Log.d(TAG, "Intent.ACTION_MEDIA_UNMOUNTED path = " + path);
} else if (action.equals(Intent.ACTION_MEDIA_MOUNTED)) {
Log.d(TAG, "Intent.ACTION_MEDIA_MOUNTED = " + path);
if( !path.contains("emulated") ) {
UdiskPath = path;
setUdiskState(true);
}
}
}
}
}