需求：当USB插入是获取U盘上的文件目录，自动弹出文件管理，点击文件拷贝到本地，自动用WPS自动打开文件
1、静态注入广播FileListBroadcastReceiver
<receiver android:name=".FileListBroadcastReceiver">
<action android:name="android.intent.action.MEDIA_MOUNTED"/>
<action android:name="android.intent.action.MEDIA_EJECT"/>
<action android:name="android.intent.action.MEDIA_REMOVED"/>
<data android:scheme="file"/>
</receiver>
2、监听USB插入广播
@Override
public void onReceive(Context context, Intent intent) {
if (intent.getAction().equals(Intent.ACTION_MEDIA_MOUNTED)) {
String path = intent.getData().getPath();
File file =new File(path);
if (TextUtils.equals(file.getAbsolutePath(), Environment.getExternalStorageDirectory().getAbsolutePath())) {
return;
}
// 插入usb
Intent intent2 =new Intent(context, MainActivity.class);
intent2.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
intent2.putExtra("path", path);
context.startActivity(intent2);
if(mUsbResponseListener !=null){
mUsbResponseListener.onInsertUsb(path, true);
}
isFinished =false;
}else if (intent.getAction().equals(Intent.ACTION_MEDIA_EJECT)
|| intent.getAction().equals(Intent.ACTION_MEDIA_REMOVED)) {
// 拔出usb
String path = intent.getData().getPath();
if(mUsbResponseListener !=null){
mUsbResponseListener.onInsertUsb(path, false);
}
isFinished =true;
}
}
3、读取文件目录
class FileListTaskextends AsyncTask> {
StringusbPath;
public FileListTask(String usbPath) {
this.usbPath = usbPath;
}
@Override
protected ListdoInBackground(Integer... integers) {
File file =new File(usbPath);
currentFilePath = file;
final List docTypes = Arrays.asList(getResources().getStringArray(R.array.docType));
final List pptTypes = Arrays.asList(getResources().getStringArray(R.array.pptType));
if (!file.isDirectory()) {
return null;
}
List details =new ArrayList<>();
File[] files = file.listFiles(new FilenameFilter() {
@Override
public boolean accept(File dir, String filename) {
if (new File(dir.getPath(), filename).isDirectory() && !new File(dir.getPath(), filename).isHidden()) {
return true;
}
if (docTypes.contains(FileUtls.getFileSuffix(filename)) ||pptTypes.contains(FileUtls.getFileSuffix(filename))) {
return true;
}
return false;
}
});
if (files ==null) {
return null;
}
for (File f : files) {
if (!f.isHidden()) {
// 隐藏文件夹或者文件不显示
FileDetail fd =new FileDetail();
fd.fileName = f.getName();
fd.selected =false;
fd.filePath = f.getAbsolutePath();
if (f.isDirectory()) {
fd.icon = R.mipmap.ic_file_floder_icon;
f.listFiles(new FilenameFilter() {
@Override
public boolean accept(File dir, String filename) {
if (new File(dir.getPath(), filename).isDirectory() && !new File(dir.getPath(), filename).isHidden()) {
return true;
}
if (docTypes.contains(FileUtls.getFileSuffix(filename))
||pptTypes.contains(FileUtls.getFileSuffix(filename))) {
return true;
}
return false;
}
});
}else {
if (docTypes.contains(FileUtls.getFileSuffix(f.getAbsolutePath()))) {
fd.icon = R.mipmap.ic_word;
}else if (pptTypes.contains(FileUtls.getFileSuffix(f.getAbsolutePath()))) {
fd.icon = R.mipmap.ic_ppt;
}
}
details.add(fd);
}
}
Collections.sort(details, new Comparator() {
@Override
public int compare(FileDetail lhs, FileDetail rhs) {
File lf =new File(lhs.filePath);
File rf =new File(rhs.filePath);
if (lf.isDirectory()) {
return -1;
}else if (!rf.isDirectory()) {
return 0;
}else {
return 1;
}
}
});
return details;
}
@Override
protected void onPostExecute(List fileDetails) {
super.onPostExecute(fileDetails);
setPath(rootPath, usbPath);
if (fileDetails ==null) {
return;
}
mFileList = fileDetails;
mFileListAdapter.setData(mFileList);
}
}
4、点击文件把文件拷贝到本地目录
if (new File(file.filePath).isDirectory()) {
new FileListTask(file.filePath).execute();
return;
}
// 拷贝文件到本地
File localFile =new File(getDir(), file.fileName);
if (localFile.exists()) {
try {
localFile.createNewFile();
}catch (IOException e) {
e.printStackTrace();
}
}
FileUtls.copyFile(file.filePath, localFile.getPath());
FileUtls.openFile(this, localFile.getPath());
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