README_2.md

MyLibDirectory - Function Global File

CRUD File. now we will make Directory and File with simple and fast.

This library need Permission you can use this step MultiPermission or use your own.

Function Global File

Example : FGFile.readFile(valueString);

Name	Return	Parameter	Description
initFile	boolean	String fileName, String saveTo, String... text	To make file MyFile.txt and put value to it
isFileExists	boolean	String path	To check is directory or file has created or not
deleteDir	boolean	String path	To Delete directory or file
deleteAllFile	boolean	String path	To Delete directory or file
readFile	boolean	String path	To read value from file txt
appentText	boolean	String path, String... msg	Add new line to existing file

---

Step 1. Enable Fitur.

Make Class MyApp, add 2 code on your onCreate. you need to declaration External Folder Name that you will use as you Folder Name in external. Now i am using MyLibsTesting.

public class MyApp extends Application {

    @Override
    public void onCreate() {
        super.onCreate();

        String externalFolderName = getApplicationContext().getString(R.string.app_name); //MyLibsTesting
        FGDir.initExternalDirectoryName(externalFolderName);
    }
}

Add MyApp to manifest android:name=".MyApp".

<?xml version="1.0" encoding="utf-8"?>
<manifest >

    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
    <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />

    <application
        android:name=".MyApp"
        ...>

        ...

    </application>

</manifest>

notes.

• In this tutorial, i will put every file and folder in /storage/emulated/0/MyLibsTesting.

---

Step 2. USE.

Create File

If you has granted your permission, now run function onSuccessCheckPermitions inside onRequestPermissionsResult :

public class MainActivity extends AppCompatActivity {

    ...

    private void onSuccessCheckPermitions() {
        //String[] data = {"Hallo GZeinNumer Again", "File Creating","File Created"};
        String[] data = new String[]{"Hallo GZeinNumer Again", "File Creating","File Created"};
   
        //buat file dalam folder App
        //   /storage/emulated/0/MyLibsTesting/MyFile.txt 
        String fileName = "/MyFile.txt";
        String saveTo = "/";
        if(FGFile.initFile(fileName, saveTo,data)){
            Toast.makeText(this, "File berhasil dibuat", Toast.LENGTH_SHORT).show();
        } else {
            Toast.makeText(this, "File gagal dibuat", Toast.LENGTH_SHORT).show();
        }
    }
    
    ...

}

is File Exists.

boolean isExists = FGFile.isFileExists("/MyFile.txt");

Delete File.

boolean isDeleted = FGFile.deleteDir("/MyFile.txt");

Delete All File Inside Folder.

boolean isDeleted = FGFile.deleteAllFile("/folder1");

FullCode

Example Project

Folder MyLibsTesting created	MyFile.txt inside MyLibsTesting created	MyFile.txt

---

Read File

You can read the file that you created, here is the code.

public class MainActivity extends AppCompatActivity {

    ...

    private void onSuccessCheckPermitions() {
        
        if(FGFile.initFile(fileName, saveTo, data)){

            //   /storage/emulated/0/MyLibsTesting/MyFile.txt
            List<String> list = FGFile.readFile("/MyFile.txt");
            String value_0 = list.get(0);
            Toast.makeText(this, "Jumlah baris : "+list.size() , Toast.LENGTH_SHORT).show();
        } else {
            
        }

    }
    
    ...

}

FullCode

Example Project

---

AppentText

Run function onSuccessCheckPermitions inside onRequestPermissionsResult to add new line string in file or appent text, parameters that you need to declaration:

1. onSuccessCheckPermitions same like Create File, add function onAppentText to excecute the process.
2. onAppentText->String path path file that you want to add new value in new line.
3. messages put your value here.

Now execute the code :

public class MainActivity extends AppCompatActivity {

    ...

    private void onSuccessCheckPermitions() {
        
        ...
        
        if(FGFile.initFile(fileName, saveTo,data)){
            
            ...
            
            //tambahkan fuction ini untuk menambahkan text pada file yang sudah dibuat
            onAppentText();
            
        } else {
            Toast.makeText(this, "File gagal dibuat", Toast.LENGTH_SHORT).show();
        }
    }

    private void onAppentText() {
        //   /storage/emulated/0/MyLibsTesting/MyFile.txt
        String path = "/MyFile.txt";
        if (FGDir.isFileExists(path)){
            String[] messages = {"Pesan ini akan ditambahkan ke file di line baru 1","Pesan ini akan ditambahkan ke file di line baru 2"};

            //function untuk menambah text ke file yang sudah dibuat sebelumnya
            if(FGFile.appentText(path, messages)){
                Toast.makeText(this, "Line baru ditambah ke file", Toast.LENGTH_SHORT).show();

                List<String> list = FGFile.readFile(path);
                Toast.makeText(this, "Jumlah baris setelah ditambahkan: "+list.size() , Toast.LENGTH_SHORT).show();
            } else {
                Toast.makeText(this, "Ada error ketika add pesan", Toast.LENGTH_SHORT).show();
            }
        } else {
            Toast.makeText(this, "File tidak ditemukan", Toast.LENGTH_SHORT).show();
        }
    }
    
    ...

}

FullCode

Sample Code And App

Preview :

Folder MyLibsTesting created	MyFile.txt inside MyLibsTesting has created	MyFile.txt before appent text	MyFile.txt after appent text