CODEWITHSUNDEEP
androidandroid-sdcardandroid-imageview
kmurph79
kmurph79

Reputation: 1202

Android: Display Image from SD CARD

This is driving me insane! Here's my code (I know this file exists):

File imageFile = new File("/sdcard/gallery_photo_4.jpg");
ImageView jpgView = (ImageView)findViewById(R.id.imageView);
BitmapDrawable d = new BitmapDrawable(getResources(), imageFile.getAbsolutePath());
jpgView.setImageDrawable(d);

The error occurs on that last line (line 28, referenced below).

Error output:

W/dalvikvm(  865): threadid=1: thread exiting with uncaught exception (group=0x4001d800)
E/AndroidRuntime(  865): FATAL EXCEPTION: main
E/AndroidRuntime(  865): java.lang.RuntimeException: Unable to start activity ComponentInfo{org.example.camera/org.example.camera.Imgview}: java.lang.NullPointerException
E/AndroidRuntime(  865):    at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2663)
E/AndroidRuntime(  865):    at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2679)
E/AndroidRuntime(  865):    at android.app.ActivityThread.access$2300(ActivityThread.java:125)
E/AndroidRuntime(  865):    at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2033)
E/AndroidRuntime(  865):    at android.os.Handler.dispatchMessage(Handler.java:99)
E/AndroidRuntime(  865):    at android.os.Looper.loop(Looper.java:123)
E/AndroidRuntime(  865):    at android.app.ActivityThread.main(ActivityThread.java:4627)
E/AndroidRuntime(  865):    at java.lang.reflect.Method.invokeNative(Native Method)
E/AndroidRuntime(  865):    at java.lang.reflect.Method.invoke(Method.java:521)
E/AndroidRuntime(  865):    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:868)
E/AndroidRuntime(  865):    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:626)
E/AndroidRuntime(  865):    at dalvik.system.NativeStart.main(Native Method)
E/AndroidRuntime(  865): Caused by: java.lang.NullPointerException
E/AndroidRuntime(  865):    at org.example.camera.Imgview.onCreate(Imgview.java:28)
E/AndroidRuntime(  865):    at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1047)
E/AndroidRuntime(  865):    at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2627)
E/AndroidRuntime(  865):    ... 11 more
W/ActivityManager(   59):   Force finishing activity org.example.camera/.Imgview

My layout looks like (probably not necessary):

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical" android:layout_width="fill_parent"
android:layout_height="fill_parent">
<ImageView android:id="@+id/imageView" android:layout_width="fill_parent"
android:layout_height="fill_parent" android:scaleType="center">
</ImageView>
</LinearLayout>

Thank you very much for any help.

Upvotes: 16

Views: 58541

Answers (4)

Pir Fahim Shah
Pir Fahim Shah

Reputation: 10633

USE THIS LINE OF CODE FOR GETTING IMAGE FROM SDCARD. AND THEN DISPLAY IT IN YOUR IMAGEVIEW

where "FileInputOutput" is a folder in your sdcard

    String path = Environment.getExternalStorageDirectory()+ "/FileInputOutput/img1.jpg"; 
            File imgFile = new File(path);
            if(imgFile.exists())
        {
                Bitmap myBitmap = BitmapFactory.decodeFile(imgFile.getAbsolutePath());                  
                ImageView myImage = (ImageView) findViewById(R.id.imageView1);
                myImage.setImageBitmap(myBitmap);
        }
            else                    
                Toast.makeText(v.getContext(),"no IMAGE IS PRESENT'",Toast.LENGTH_SHORT).show();
        }

Upvotes: 3

Lukas Knuth
Lukas Knuth

Reputation: 25755

I would rather use a BitmapFactory to decode the Image from the file-path:

Bitmap bitmap = BitmapFactory.decodeFile(imageFile.getAbsolutePath());
jpgView.setImageBitmap(bitmap);

The Docs say:

If the specified file name is null, or cannot be decoded into a bitmap, the function returns null.

Can you check if the code works with another image and if you can open your image on your PC thought. Maybe the file is corrupt.

Upvotes: 33

Puttaraju
Puttaraju

Reputation: 481

This code worked for me finally:

    setContentView(R.layout.main);
    ImageView jpgView = (ImageView)findViewById(R.id.imageView);
    Bitmap bitmap = BitmapFactory.decodeFile("/sdcard/sample-1.jpg");
    jpgView.setImageBitmap(bitmap);

Crash was happening because setContentView() was not performed before attaching the jpgview:

code that was crashing:

    ImageView jpgView = (ImageView)findViewById(R.id.imageView);
    Bitmap bitmap = BitmapFactory.decodeFile("/sdcard/sample-1.jpg");
    jpgView.setImageBitmap(bitmap);
    setContentView(R.layout.main);

Upvotes: 10

Londeren
Londeren

Reputation: 3341

String imagePath = Environment.getExternalStorageDirectory().toString() + PATH_TO_IMAGE;
return Drawable.createFromPath(imagePath)

Upvotes: 7

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