Take backup of all install apk file into sdcard programmatically in Android

Question

I want to take back up of my all install application in my sdcard so I write below code ``` public class MainActivity extends Activity { @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); final Intent mainIntent = new Intent(Intent.ACTION_MAIN, null); mainIntent.addCategory(Intent.CATEGORY_LAUNCHER); final List pkgAppsList = getPackageManager().queryIntentActivities( mainIntent, 0); for (Object object : pkgAppsList) { ResolveInfo info = (ResolveInfo) object; File file =new File( info.activityInfo.applicationInfo.publicSourceDir); InputStream myInput; System.out.println("SDSD "+file.toString()); String sdpath = Environment.getExternalStorageDirectory().getPath(); try { File exist=new File(Environment.getExternalStorageState()+file.toString()); System.out.println("1 "+ exist.exists()); // Set the output folder on the Scard File directory = new File(sdpath + "/Back"); // Create the folder if it doesn'…

Accepted Answer

Try this..

```
final Intent mainIntent = new Intent(Intent.ACTION_MAIN, null);
        mainIntent.addCategory(Intent.CATEGORY_LAUNCHER);
        final List pkgAppsList = getPackageManager().queryIntentActivities( mainIntent, 0);
        int z = 0;
        for (Object object : pkgAppsList) {

ResolveInfo info = (ResolveInfo) object;

File f1 =new File( info.activityInfo.applicationInfo.publicSourceDir);

Log.v("file--", " "+f1.getName().toString()+"----"+info.loadLabel(getPackageManager()));
                try{

String file_name = info.loadLabel(getPackageManager()).toString();
                    Log.d("file_name--", " "+file_name);

// File f2 = new File(Environment.getExternalStorageDirectory().toString()+"/Folder/"+file_name+".apk");
                   // f2.createNewFile();

File f2 = new File(Environment.getExternalStorageDirectory().toString()+"/Folder");   
                    f2.mkdirs();            
                    f2 = new File(f2.getPath()+"/"+file_name+".apk");
                    f2.createNewFile();

InputStream in = new FileInputStream(f1);

OutputStream out = new FileOutputStream(f2);

byte[] buf = new byte[1024];
                    int len;
                    while ((len = in.read(buf)) > 0){
                        out.write(buf, 0, len);
                    }
                    in.close();
                    out.close();
                    System.out.println("File copied.");
                }
                catch(FileNotFoundException ex){
                    System.out.println(ex.getMessage() + " in the specified directory.");
                }
                catch(IOException e){
                    System.out.println(e.getMessage());      
                }
        }
```

Take backup of all install apk file into sdcard programmatically in Android

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