NullPointerException in android

Question

Here i am try to open photo from folder which i saved in before activity of this program's but here i still face the Exception.

ImageView img = null;
Bitmap bmp = null;
@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.photoeffect_1);
    Intent i = this.getIntent();
    String s = i.getStringExtra("second");
    Toast.makeText(getApplicationContext(), s, Toast.LENGTH_LONG).show();

    bmp = BitmapFactory.decodeFile("/sdcard/GWonderPhoto/"+s+".jpg");
    img = (ImageView) findViewById(R.id.imageView1);
    img.setImageBitmap(bmp);
    // TODO Auto-generated method stub

}

Exception :

'02-25 17:07:07.543: E/BitmapFactory(24805): Unable to decode stream: java.io.FileNotFoundException: /sdcard/GWonderPhoto/1424905623242.jpg: open failed: ENOENT (No such file or directory)'

Log says '(No such file or directory)'. @Rami is right! Check the path — MikeKeepsOnShine, Feb 25 '15 at 11:25
Try changing `decodeFile("/sdcard/GWonderPhoto/"+s+".jpg");` to : `decodeFile("file://" +"/sdcard/GWonderPhoto/"+s+".jpg");` or to : `decodeFile("content://sdcard/GWonderPhoto/"+s+".jpg");` — Josef, Feb 25 '15 at 12:47
Here is solution for you :http://stackoverflow.com/questions/15939733/where-do-i-put-the-image-resource-file-bitmapfactory-decodefile — Josef, Feb 25 '15 at 13:31

score 3 · Answer 1 · answered Feb 25 '15 at 11:18

3

use

setContentView(R.layout.photoeffect_1);

just after

super.onCreate(savedInstanceState);

i.e. rewrite onCreate method as

@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
 // TODO Auto-generated method stub
    setContentView(R.layout.photoeffect_1);
    Intent i = this.getIntent();
    String s = i.getStringExtra("second");
    Toast.makeText(getApplicationContext(), s, Toast.LENGTH_LONG).show();

    bmp = BitmapFactory.decodeFile("/sdcard/GWonderPhoto/"+s+".jpg");
    img = (ImageView) findViewById(R.id.imageView1);
    img.setImageBitmap(bmp);
}

answered Feb 25 '15 at 11:18

Giru Bhai

14,370
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@GautamPatadiya because your image path is wrong as it says `ENOENT (No such file or directory)'` – Giru Bhai Feb 25 '15 at 11:23
still face problem here – Gautam Patadiya Feb 25 '15 at 11:23
@GautamPatadiya which problem,please be more clear,Did you clear your project? – Giru Bhai Feb 25 '15 at 11:24
sir first as your suggestion i edit my code but then after image doesn't load in imageVIew – Gautam Patadiya Feb 25 '15 at 11:26
@GautamPatadiya did you get any exception,please check image path – Giru Bhai Feb 25 '15 at 11:26
02-25 17:18:53.343: E/BitmapFactory(25994): Unable to decode stream: java.io.FileNotFoundException: /sdcard/GWonderPhoto/1424906328300 .jpg: open failed: ENOENT (No such file or directory) – Gautam Patadiya Feb 25 '15 at 11:27
sir but if i try to access a particular image for example '12121.jpg' then it will show me but dynamically that doesn't show – Gautam Patadiya Feb 25 '15 at 11:30
@GautamPatadiya replace `bmp = BitmapFactory.decodeFile("/sdcard/GWonderPhoto/"+s+".jpg");` with `bmp = BitmapFactory.decodeFile("/sdcard/GWonderPhoto/12121.jpg");` and check if it working or not? – Giru Bhai Feb 25 '15 at 11:32
@GautamPatadiya then debug and check the value of `s`(it may be empty.). – Giru Bhai Feb 25 '15 at 11:36
Excetly you right but i show Toast ,That show me the image name – Gautam Patadiya Feb 25 '15 at 11:38
@GautamPatadiya thwn what is the value of `s`? – Giru Bhai Feb 25 '15 at 11:39
from before activity i pass the timestamp which is catch by 's' variable then after i append the '.jpg' extension but the name i can see in Toast but image still doesn't – Gautam Patadiya Feb 25 '15 at 11:41

Amrut Bidri · Answer 2 · 2015-02-25T11:56:56.793

0

bmp = BitmapFactory.decodeFile("/sdcard/GWonderPhoto/"+s+".jpg");

change this line to:

bmp = BitmapFactory.decodeFile(Environment.getExternalStorageDirectory()+"/GWonderPhoto/"+s+".jpg");

EDIT

also see if following permissions are added in Manifest:

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

i hope this will help you.

edited Feb 25 '15 at 11:56

answered Feb 25 '15 at 11:48

Amrut Bidri

6,276
6
38
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Thank you but that still throws Exception – Gautam Patadiya Feb 25 '15 at 11:58

NullPointerException in android

2 Answers2