Getting read and write permission from External Storage in android

How we get Read and Write Storage permission?

First of all, add following Storage permission in our manifest File.

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

1 2	<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" /> <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />

write following two methods in our activity for the request to granting Read/Write Permission.

    public  boolean isReadStoragePermissionGranted() {
        if (Build.VERSION.SDK_INT >= 23) {
            if (checkSelfPermission(Manifest.permission.READ_EXTERNAL_STORAGE)
                    == PackageManager.PERMISSION_GRANTED) {
                Log.v(TAG,"Permission is granted1");
                return true;
            } else {

                Log.v(TAG,"Permission is revoked1");
                ActivityCompat.requestPermissions(this, new String[]{Manifest.permission.READ_EXTERNAL_STORAGE}, 3);
                return false;
            }
        }
        else { //permission is automatically granted on sdk<23 upon installation
            Log.v(TAG,"Permission is granted1");
            return true;
        }
    }

    public  boolean isWriteStoragePermissionGranted() {
        if (Build.VERSION.SDK_INT >= 23) {
            if (checkSelfPermission(android.Manifest.permission.WRITE_EXTERNAL_STORAGE)
                    == PackageManager.PERMISSION_GRANTED) {
                Log.v(TAG,"Permission is granted2");
                return true;
            } else {

                Log.v(TAG,"Permission is revoked2");
                ActivityCompat.requestPermissions(this, new String[]{Manifest.permission.WRITE_EXTERNAL_STORAGE}, 2);
                return false;
            }
        }
        else { //permission is automatically granted on sdk<23 upon installation
            Log.v(TAG,"Permission is granted2");
            return true;
        }
    }

public boolean isReadStoragePermissionGranted() {

if (Build.VERSION.SDK_INT >= 23) {

if (checkSelfPermission(Manifest.permission.READ_EXTERNAL_STORAGE)

== PackageManager.PERMISSION_GRANTED) {

Log.v(TAG,"Permission is granted1");

return true;

} else {

Log.v(TAG,"Permission is revoked1");

ActivityCompat.requestPermissions(this, new String[]{Manifest.permission.READ_EXTERNAL_STORAGE}, 3);

return false;

}

else { //permission is automatically granted on sdk<23 upon installation

Log.v(TAG,"Permission is granted1");

return true;

}

public boolean isWriteStoragePermissionGranted() {

if (Build.VERSION.SDK_INT >= 23) {

if (checkSelfPermission(android.Manifest.permission.WRITE_EXTERNAL_STORAGE)

== PackageManager.PERMISSION_GRANTED) {

Log.v(TAG,"Permission is granted2");

return true;

} else {

Log.v(TAG,"Permission is revoked2");

ActivityCompat.requestPermissions(this, new String[]{Manifest.permission.WRITE_EXTERNAL_STORAGE}, 2);

return false;

}

else { //permission is automatically granted on sdk<23 upon installation

Log.v(TAG,"Permission is granted2");

return true;

}

Getting permission response in our Activity.

 @Override
    public void onRequestPermissionsResult(int requestCode, String[] permissions, int[] grantResults) {
        super.onRequestPermissionsResult(requestCode, permissions, grantResults);
        switch (requestCode) {
            case 2:
                Log.d(TAG, "External storage2");
                if(grantResults[0]== PackageManager.PERMISSION_GRANTED){
                    Log.v(TAG,"Permission: "+permissions[0]+ "was "+grantResults[0]);
                    //resume tasks needing this permission
                    downloadPdfFile();
                }else{
                    progress.dismiss();
                }
                break;

            case 3:
                Log.d(TAG, "External storage1");
                if(grantResults[0]== PackageManager.PERMISSION_GRANTED){
                    Log.v(TAG,"Permission: "+permissions[0]+ "was "+grantResults[0]);
                    //resume tasks needing this permission
                    SharePdfFile();
                }else{
                    progress.dismiss();
                }
                break;
        }
    }

@Override

public void onRequestPermissionsResult(int requestCode, String[] permissions, int[] grantResults) {

super.onRequestPermissionsResult(requestCode, permissions, grantResults);

switch (requestCode) {

case 2:

Log.d(TAG, "External storage2");

if(grantResults[0]== PackageManager.PERMISSION_GRANTED){

Log.v(TAG,"Permission: "+permissions[0]+ "was "+grantResults[0]);

//resume tasks needing this permission

downloadPdfFile();

}else{

progress.dismiss();

}

break;

case 3:

Log.d(TAG, "External storage1");

if(grantResults[0]== PackageManager.PERMISSION_GRANTED){

Log.v(TAG,"Permission: "+permissions[0]+ "was "+grantResults[0]);

//resume tasks needing this permission

SharePdfFile();

}else{

progress.dismiss();

}

break;

}

References: StackOverflow and android developer site.

ashwini gupta

22 Apr, 2017
Created by - ashwini gupta

. . .

8 comments

Madiha Iqbal 4 years ago

hey
this is madiha iqbal
can you please tell me that in which activity i have to write this code?
menifest’s activity or main activity

anchit (Moderator) 4 years ago
the first two lines of code needs to be written in the Manifest file.

Rest of the code needs to be written in any of the acitivity file where you need to use this permission

Reply

emmet ray 4 years ago

Good piece of info, helped me to learn smthng. Thank you

Gurudas 6 years ago

Thanks .. it was very helpful

gee12 7 years ago

Thanks, it helped me.

wannassi rahma 7 years ago

Hello sir ,i want to import data from xls file and insert it in my sqlite ,but when i click the button to import data my app stopped any help plz //

btnimport.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(final View v) {
File file = new File(directory_path);
if (!file.exists()) {
Utils.showSnackBar(v, “No file”);
return;
}
dbQueries.open();
ExcelToSQLite excelToSQLite = new ExcelToSQLite(getApplicationContext(), DBHelper.DBinfo.dataBase_Name, true);

// Import EXCEL FILE to SQLite
excelToSQLite.importFromFile(directory_path, new ExcelToSQLite.ImportListener() {
@Override
public void onStart() {

}

@Override
public void onCompleted(String dbName) {
Toast.makeText(Excel2SQLitActivity.this,”Data imported”,Toast.LENGTH_LONG).show();

}

@Override
public void onError(Exception e) {
Toast.makeText(Excel2SQLitActivity.this,”somthing go wrong”,Toast.LENGTH_LONG).show();

}
});
dbQueries.close();
}
});

hari shankar 8 years ago

kindly share source code, yr site is awesome. thank u

Shubham Agarwal 8 years ago
Thanks for comment, I have already share code snippets.

Reply

Getting read and write permission from External Storage in android

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