Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
//License from project: Apache License 

import java.io.File;

import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;

import android.support.annotation.NonNull;

public class Main {
    /**
     * Check is a file is writable. Detects write issues on external SD card.
     *
     * @param file The file
     * @return true if the file is writable.
     */
    public static boolean isWritable(@NonNull final File file) {
        boolean isExisting = file.exists();

        try {
            FileOutputStream output = new FileOutputStream(file, true);
            try {
                output.close();
            } catch (IOException e) {
                // do nothing.
            }
        } catch (FileNotFoundException e) {
            return false;
        }
        boolean result = file.canWrite();

        // Ensure that file is not created during this process.
        if (!isExisting) {
            //noinspection ResultOfMethodCallIgnored
            file.delete();
        }

        return result;
    }
}