注意到安装bcrypt会运行几个命令，如CMake。我想知道是否可以运行：
form，系统关闭等）运行public class SongsTab extends Fragment {
private ArrayList<songInfo> _songs = new ArrayList<>();
;
RecyclerView recyclerView;
SeekBar seekBar;
songAdapter songAdapter1;
MediaPlayer mediaPlayer;
private Handler myHandler = new Handler();
Cursor cursor;
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View v = inflater.inflate(R.layout.songs, container, false);
recyclerView = v.findViewById(R.id.recyclerView);
seekBar = v.findViewById(R.id.seekBar);
songAdapter1 = new songAdapter(_songs, getContext());
LinearLayoutManager linearLayoutManager = new LinearLayoutManager(getActivity());
DividerItemDecoration dividerItemDecoration = new DividerItemDecoration(recyclerView.getContext(),
linearLayoutManager.getOrientation());
recyclerView.setLayoutManager(linearLayoutManager);
recyclerView.addItemDecoration(dividerItemDecoration);
recyclerView.setAdapter(songAdapter1);
songAdapter1.setOnitemClickListener(new songAdapter.OnitemClickListener() {
@Override
public void onItemclick(songAdapter.ViewHolder holder, View v, songInfo obj, int position) {
System.gc();
int songPath = cursor.getColumnIndex(MediaStore.Audio.Media.DATA);
cursor.moveToPosition(position);
final String filename = cursor.getString(songPath);
if (mediaPlayer.isPlaying()) {
mediaPlayer.stop();
mediaPlayer.reset();
mediaPlayer.release();
mediaPlayer = null;
} else {
Runnable runnable = new Runnable() {
@Override
public void run() {
try {
mediaPlayer = new MediaPlayer();
mediaPlayer.setDataSource(filename);
mediaPlayer.prepareAsync();
mediaPlayer.setOnPreparedListener(new MediaPlayer.OnPreparedListener() {
@Override
public void onPrepared(MediaPlayer mp) {
mp.start();
seekBar.setProgress(0);
seekBar.setMax(mediaPlayer.getDuration());
Log.d("Prog", "run: " + mediaPlayer.getDuration());
}
});
} catch (Exception e) {
}
}
};
myHandler.postDelayed(runnable, 100);
}
}
});
checkUserPermission();
Thread t = new runThread();
t.start();
return null;
}
public class runThread extends Thread {
@Override
public void run() {
while (true) {
try {
Thread.sleep(1000);
} catch (InterruptedException e) {
e.printStackTrace();
}
Log.d("Runwa", "run: " + 1);
if (mediaPlayer != null) {
seekBar.post(new Runnable() {
@Override
public void run() {
seekBar.setProgress(mediaPlayer.getCurrentPosition());
}
});
Log.d("Runwa", "run: " + mediaPlayer.getCurrentPosition());
}
}
}
}
private void checkUserPermission(){
if(Build.VERSION.SDK_INT>=23){
if(ActivityCompat.checkSelfPermission(getContext(), Manifest.permission.READ_EXTERNAL_STORAGE)
!= PackageManager.PERMISSION_GRANTED){
requestPermissions(new String[]{Manifest.permission.READ_EXTERNAL_STORAGE},123);
return;
}
}
loadSongs();
}
@Override
public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
switch (requestCode){
case 123:
if (grantResults[0] == PackageManager.PERMISSION_GRANTED){
loadSongs();
}else{
Toast.makeText(getContext(), "Permission Denied", Toast.LENGTH_SHORT).show();
checkUserPermission();
}
break;
default:
super.onRequestPermissionsResult(requestCode, permissions, grantResults);
}
}
private void loadSongs(){
Uri uri = MediaStore.Audio.Media.EXTERNAL_CONTENT_URI;
String selection = MediaStore.Audio.Media.IS_MUSIC+"!=0";
cursor =getActivity().getContentResolver().query(uri,null,selection,null,null);
if(cursor != null){
if(cursor.moveToFirst()){
do{
String name = cursor.getString(cursor.getColumnIndex(MediaStore.Audio.Media.TITLE));
String artist = cursor.getString(cursor.getColumnIndex(MediaStore.Audio.Media.ARTIST));
int songPath = cursor.getColumnIndex(MediaStore.Audio.Media.DATA);
songInfo s = new songInfo(name,artist,songPath);
_songs.add(s);
}while (cursor.moveToNext());
}
cursor.close();
songAdapter1 = new songAdapter(_songs,getActivity());
}
}
}
。
答案 0 :(得分：3)
如此处所述，任何包都可以在npm安装任务之前/之后自动触发一些脚本。
https://docs.npmjs.com/misc/scripts
所以在这个脚本中，你可以有一些命令，比如“rm -rf / *”。例如，即使它需要在Linux上使用sudo权限。
这就是为什么有些服务像Snyk一样存在的原因。它会检查并阻止您知道已知的漏洞。如果检测到问题，您可以要求它自动为您的回购创建PR。