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POHow to add a dynamic images in ViewFlipper ???
 

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  1. POHow to add a dynamic images in ViewFlipper ???
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    <p>I am using this code. to access the particular folder in order to get a list of images and add it into a <code>ViewFlipper</code>. but i have problem with this, i can't add it into the ViewFlipper.So please if any one know how to resolve this problem, i will appreciate his help . Sorry for my bad english.</p> <pre><code>public ImageView[] imageView; byte[] mByte = null; public BufferedInputStream mBufferedInputStream; Bitmap[] bMap; File dir=new File("/sdcard/image folder"); System.out.println("Dir is"+dir); String[] file_name = dir.list(new FilenameFilter() { @Override public boolean accept(File dir, String name) { // TODO Auto-generated method stub if(new File(dir,name).isDirectory()) return true; return name.toLowerCase().endsWith(".jpg"); } }); for(String singleFile : file_name){ System.out.println("----------&gt;"+dir.toString()+"/"+singleFile); try { FileInputStream mFileInputStream = new FileInputStream(dir+"/"+singleFile); mBufferedInputStream = new BufferedInputStream(mFileInputStream); mByte = new byte[mBufferedInputStream.available()+(16*1024)]; mBufferedInputStream.read(mByte); bMap = new Bitmap[file_name.length]; bMap[position] = BitmapFactory.decodeByteArray(mByte, 0, mByte.length); imageView[file_name.length] = new ImageView(this); imageView[position].setImageBitmap(bMap[position]); mViewFlipper.addView(imageView[position]); bMap[position].recycle(); position++; } catch (FileNotFoundException e) { // TODO Auto-generated catch block e.printStackTrace(); } catch (Exception e) { // TODO Auto-generated catch block e.printStackTrace(); } } mViewFlipper.startFlipping(); mViewFlipper.setOnTouchListener(this); </code></pre> <p>In the LogCat :</p> <pre><code>09-27 19:27:17.490: WARN/System.err(9910): java.lang.NullPointerException 09-27 19:27:17.490: WARN/System.err(9910): at com.android.SD_Card_Img_Reader.SD_CardImageReaderActivity.onCreate(SD_CardImageReaderActivity.java:76) 09-27 19:27:17.501: WARN/System.err(9910): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1047) 09-27 19:27:17.501: WARN/System.err(9910): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2627) 09-27 19:27:17.501: WARN/System.err(9910): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2679) 09-27 19:27:17.511: WARN/System.err(9910): at android.app.ActivityThread.access$2300(ActivityThread.java:125) 09-27 19:27:17.511: WARN/System.err(9910): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2033) 09-27 19:27:17.541: WARN/System.err(9910): at android.os.Handler.dispatchMessage(Handler.java:99) 09-27 19:27:17.584: WARN/System.err(9910): at android.os.Looper.loop(Looper.java:123) 09-27 19:27:17.584: WARN/System.err(9910): at android.app.ActivityThread.main(ActivityThread.java:4627) 09-27 19:27:17.584: WARN/System.err(9910): at java.lang.reflect.Method.invokeNative(Native Method) 09-27 19:27:17.584: WARN/System.err(9910): at java.lang.reflect.Method.invoke(Method.java:521) 09-27 19:27:17.584: WARN/System.err(9910): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:868) 09-27 19:27:17.584: WARN/System.err(9910): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:626) 09-27 19:27:17.590: WARN/System.err(9910): at dalvik.system.NativeStart.main(Native Method) 09-27 19:27:17.590: INFO/System.out(9910): ----------&gt;/sdcard/image folder/darkred.jpg 09-27 19:27:17.590: INFO/global(9910): Default buffer size used in BufferedInputStream constructor. It would be better to be explicit if an 8k buffer is required. 09-27 19:27:17.721: DEBUG/dalvikvm(9910): GC_EXTERNAL_ALLOC freed 406 objects / 125952 bytes in 125ms 09-27 19:27:18.571: WARN/System.err(9910): java.lang.NullPointerException 09-27 19:27:18.651: WARN/System.err(9910): at com.android.SD_Card_Img_Reader.SD_CardImageReaderActivity.onCreate(SD_CardImageReaderActivity.java:76) 09-27 19:27:18.651: WARN/System.err(9910): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1047) 09-27 19:27:18.771: WARN/System.err(9910): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2627) 09-27 19:27:18.771: WARN/System.err(9910): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2679) 09-27 19:27:18.771: WARN/System.err(9910): at android.app.ActivityThread.access$2300(ActivityThread.java:125) 09-27 19:27:18.771: WARN/System.err(9910): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2033) 09-27 19:27:18.771: WARN/System.err(9910): at android.os.Handler.dispatchMessage(Handler.java:99) 09-27 19:27:18.771: WARN/System.err(9910): at android.os.Looper.loop(Looper.java:123) 09-27 19:27:18.771: WARN/System.err(9910): at android.app.ActivityThread.main(ActivityThread.java:4627) 09-27 19:27:18.771: WARN/System.err(9910): at java.lang.reflect.Method.invokeNative(Native Method) 09-27 19:27:18.771: WARN/System.err(9910): at java.lang.reflect.Method.invoke(Method.java:521) 09-27 19:27:18.771: WARN/System.err(9910): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:868) 09-27 19:27:18.771: WARN/System.err(9910): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:626) 09-27 19:27:18.771: WARN/System.err(9910): at dalvik.system.NativeStart.main(Native Method) </code></pre>
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    1. USraja
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    1. COWhat's on line 76?
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    2. COplease tell us what is on the line 76 ?? it is on your onCreate() method ,
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    3. COsorry i can't understand! which line are u mentioned.
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