Android unable to save image file to SD card

Question

I'm using OpenGL to draw frame in Android phone and I want to save the image to the storage, but I get error: the directory is not found and no such file directory, I do put permission in the Android Manifest like this:

<manifest xmlns:android="http://schemas.android.com/apk/res/android" package="com.etoff.appsopengl">
    <uses-permission android:name="android.permission.WRITE_INTERNAL_STORAGE" />
    <uses-permission android:name="android.permission.STORAGE" />
    <uses-permission android:name="android.permission.READ_INTERNAL_STORAGE" />
<application android:allowBackup="true" android:label="@string/app_name"
    android:icon="@mipmap/ic_launcher" android:theme="@style/AppTheme">

    <activity
        android:name="com.etoff.appsopengl.MainActivity"
        android:label="@string/app_name"
        android:theme="@android:style/Theme.NoTitleBar"
        android:screenOrientation="portrait" >
        <intent-filter>
            <action android:name="android.intent.action.MAIN" />
            <category android:name="android.intent.category.LAUNCHER" />
        </intent-filter>
    </activity>

</application>

this is my coding in stage class:

if(SC==true){
            int screenshotSize = screenWidth * screenHeight;
            ByteBuffer bb = ByteBuffer.allocateDirect(screenshotSize * 4);
            bb.order(ByteOrder.nativeOrder());
            gl.glReadPixels(0, 0, screenWidth, screenHeight, GL10.GL_RGBA, GL10.GL_UNSIGNED_BYTE, bb);
            int pixelsBuffer[] = new int[screenshotSize];
            bb.asIntBuffer().get(pixelsBuffer);
            bb = null;
            Bitmap bitmap = Bitmap.createBitmap(screenWidth, screenHeight, Bitmap.Config.RGB_565);
            bitmap.setPixels(pixelsBuffer, screenshotSize-screenWidth, -screenWidth, 0, 0, screenWidth, screenHeight);
            pixelsBuffer = null;
            short sBuffer[] = new short[screenshotSize];
            ShortBuffer sb = ShortBuffer.wrap(sBuffer);
            bitmap.copyPixelsToBuffer(sb);
            for (int i = 0; i < screenshotSize; ++i) {
                short v = sBuffer[i];
                sBuffer[i] = (short) (((v&0x1f) << 11) | (v&0x7e0) | ((v&0xf800) >> 11));
            }
            sb.rewind();
            bitmap.copyPixelsFromBuffer(sb);
            screen = bitmap;

            String file_path = Environment.getExternalStorageDirectory().toString() + "/OpenGL";
            File dir = new File(file_path);
            if(!dir.exists()){
                dir.mkdirs();
            }
            String format = new SimpleDateFormat("yyyyMMddHHmmss", java.util.Locale.getDefault()).format(new Date());
            File file = new File(file_path, format + ".png");
            OutputStream fOut;
            try {
                fOut = new FileOutputStream(file);
                screen.compress(Bitmap.CompressFormat.PNG, 85, fOut);
                fOut.flush();
                fOut.close();
            } catch (Exception e) {
                e.printStackTrace();
            }

            SC = false;
        }

this is the error I get in the console:

W/System.err﹕ java.io.FileNotFoundException: /storage/emulated/0/OpenGL/20151001152329.png: open failed: ENOENT (No such file or directory)
W/System.err﹕ at libcore.io.IoBridge.open(IoBridge.java:409)
W/System.err﹕ at java.io.FileOutputStream.<init>(FileOutputStream.java:88)
W/System.err﹕ at java.io.FileOutputStream.<init>(FileOutputStream.java:73)
W/System.err﹕ at com.etoff.appsopengl.Stage$MyRenderer.onDrawFrame(Stage.java:167)
W/System.err﹕ at android.opengl.GLSurfaceView$GLThread.guardedRun(GLSurfaceView.java:1531)
W/System.err﹕ at android.opengl.GLSurfaceView$GLThread.run(GLSurfaceView.java:1248)
W/System.err﹕ Caused by: libcore.io.ErrnoException: open failed: ENOENT (No such file or directory)
W/System.err﹕ at libcore.io.Posix.open(Native Method)
W/System.err﹕ at libcore.io.BlockGuardOs.open(BlockGuardOs.java:110)
W/System.err﹕ at libcore.io.IoBridge.open(IoBridge.java:393)
W/System.err﹕ ... 5 more

http://stackoverflow.com/a/11620848/3593066 – Mustanser Iqbal Oct 01 '15 at 04:56 — Mustanser Iqbal, Oct 01 '15 at 04:56
I do create folder where I write the file – Le Parkour Oct 01 '15 at 06:40 — Le Parkour, Oct 01 '15 at 06:40

Rajesh Jadav · Accepted Answer · 2015-10-01T08:44:59.257

1

Error:

Caused by: libcore.io.ErrnoException: open failed: ENOENT (No such file or directory) at libcore.io.Posix.open(Native Method)

basically your image file is not found because file path you have given is wrong.

Use Environment.getExternalStorageDirectory() to get Path of SD Card.

Remove the .getAbsolutePath() and it will be fine. Environment.getExternalStoreDirectory() will give you the path to wherever the manufacture has set their external storage.

Try

String file_path = Environment.getExternalStorageDirectory().toString()+"/OpenGL"

instead of

String file_path = Environment.getExternalStorageDirectory()+ "/OpenGL";

EDIT1:

You need to add this permission to write file into Internal storage.

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

I recommend you to save image in Internal Storage rather that SD card because Different manufacturer use different SD card name so there is different SD card path for different devices.

EDIT2:

Try this code

 String file_path = Environment.getExternalStorageDirectory().getAbsolutePath() + "/OpenGL";
 File dir = new File(file_path);
 if(!dir.exists()){
     dir.mkdirs();
 }
 String format = new SimpleDateFormat("yyyyMMddHHmmss", java.util.Locale.getDefault()).format(new Date());
 File file = new File(file_path, format + ".png");

instead of

String file_path = Environment.getExternalStorageDirectory().getAbsolutePath() + "/OpenGL";
File dir = new File(file_path);
if(!dir.exists()){
    dir.mkdirs();
}
String format = new SimpleDateFormat("yyyyMMddHHmmss", java.util.Locale.getDefault()).format(new Date());
File file = new File(dir, format + ".png");

EDIT3: give both permission in manifest file:

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

and also try to use both dir.mkdir(); and dir.mkdirs(); with above 2 permissions.

edited Oct 01 '15 at 08:44

answered Oct 01 '15 at 04:47

Rajesh Jadav

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Ok Sir I try use internal storage – Le Parkour Oct 01 '15 at 06:43
String file_path = Environment.getDataDirectory().toString() + "/OpenGL"; I updated my code but I still have the same error – Le Parkour Oct 01 '15 at 06:48
do you have added pemission ?and pls post updated code in your question – Rajesh Jadav Oct 01 '15 at 07:00
also try this OutputStream fOut = new FileOutputStream(file); instead of FileOutputStream fOut = new FileOutputStream(file); – Rajesh Jadav Oct 01 '15 at 07:01
use File file = new File(file_path, format + ".png"); instead File file = new File(dir, format + ".png"); – Rajesh Jadav Oct 01 '15 at 07:05
you have not updated your code . i can find you are using String file_path = Environment.getDataDirectory().toString() + "/OpenGL"; instead of String file_path = Environment.getExternalStorageDirectory()+ "/OpenGL" – Rajesh Jadav Oct 01 '15 at 07:09
No sir, I using Environment.getDataDirectory().toString() – Le Parkour Oct 01 '15 at 07:10
use Environment.getExternalStorageDirectory()+ "/OpenGL" there – Rajesh Jadav Oct 01 '15 at 07:11
Ya used, after change android Manifest to external storage, now error still same – Le Parkour Oct 01 '15 at 07:12
pls post your all updated code you are using till now – Rajesh Jadav Oct 01 '15 at 07:13
Ok done, I have updated all now and tested, the error still same – Le Parkour Oct 01 '15 at 07:20
why you have not given this permission ? – Rajesh Jadav Oct 01 '15 at 07:21
because you are asking me to use external? Environment.getExternalStorageDirectory() – Le Parkour Oct 01 '15 at 07:22
Environment.getExternalStorageDirectory() return internal storage path not SD card path – Rajesh Jadav Oct 01 '15 at 07:23
Ok, I have updated again and tried, the error still same – Le Parkour Oct 01 '15 at 07:25
Sir, what is the main problem with my coding? – Le Parkour Oct 01 '15 at 07:48
I have given solutions which i have known these solutions should have to work – Rajesh Jadav Oct 01 '15 at 08:01
I dunno why the directory and PNG file is not written in the storage? – Le Parkour Oct 01 '15 at 08:16
It's worked, but the saved image only save my rendered texture but it's ignored the background... I dunno why? – Le Parkour Oct 01 '15 at 09:34
there might be some issue while creating bitmap – Rajesh Jadav Oct 01 '15 at 09:37
Probably in onDraweFrame I did't draw the background I think I need study again, anyway thanks Bro – Le Parkour Oct 01 '15 at 09:55

score 0 · Answer 2 · answered Oct 01 '15 at 05:04

you can use this method to save image bitmap to save into SD card

public static Uri saveBitmap(Bitmap bitmap) {

    File imagePath = new File(Environment.getExternalStorageDirectory() + "/screenshot.png");
    FileOutputStream fos;
    try {
        fos = new FileOutputStream(imagePath);
        bitmap.compress(Bitmap.CompressFormat.JPEG, 100, fos);
        fos.flush();
        fos.close();
    } catch (FileNotFoundException e) {
        Log.e("GREC", e.getMessage(), e);
    } catch (IOException e) {
        Log.e("GREC", e.getMessage(), e);
    }
    Uri parse = Uri.parse(new File(Environment.getExternalStorageDirectory() + "/screenshot.png").toString());
    return parse;
}

note-Add permission in manifest:

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

enjoy your code time:)

not work, this is the error Caused by: libcore.io.ErrnoException: open failed: ENOENT (No such file or directory) at libcore.io.Posix.open(Native Method) — Le Parkour, Oct 01 '15 at 06:53

Android unable to save image file to SD card

2 Answers2