Welcome to OStack Knowledge Sharing Community for programmer and developer-Open, Learning and Share
Welcome To Ask or Share your Answers For Others

Categories

0 votes
217 views
in Technique[技术] by (71.8m points)

java - Trying to check if a file exists in internal storage

The following code is how I am trying to identify if a file exists in the internal storage, MODE_PRIVATE.

public boolean isset(String filename){
    FileInputStream fos = null;
    try {
       fos = openFileInput(filename);
       //fos = openFileInput(getFilesDir()+"/"+filename);
       if (fos != null) {
         return true;
       }else{
         return false;
       }
    } catch (FileNotFoundException e) {
        return false;
    }

    //File file=new File(mContext.getFilesDir(),filename);

    //boolean exists = fos.exists();
    }

However, it goes into the exception and doesn't continue with the code. It doesn't do the return. Why?

See Question&Answers more detail:os

与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
Welcome To Ask or Share your Answers For Others

1 Answer

0 votes
by (71.8m points)

hope this method helps you.

public boolean fileExist(String fname){
    File file = getBaseContext().getFileStreamPath(fname);
    return file.exists();
}

与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
Welcome to OStack Knowledge Sharing Community for programmer and developer-Open, Learning and Share
Click Here to Ask a Question

...