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POAndroid - .getInputStream() keeps on crashing
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2013-07-01T21:34:17.007
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I'm really new to Android, java and HTML. So I'm pretty much stuffed. I'm just trying to get data from a URL with an android application. I tried the following code in java and it works fine, so I really stuck with what is wrong with it. I tried googling and used different options, such as setting connection time <pre><code> URL url = new URL("http://www.google.com/"); HttpURLConnection conn = (HttpURLConnection) url.openConnection(); conn.setDoInput(true); conn.setDoOutput(true); try { input = new InputStreamReader(conn.getInputStream()); in =new BufferedReader(input); } </code></pre> I tried a lot of different versions, such as adding a bunch of stuff like: urlConnection.setRequestProperty("Connection", "keep-alive"); urlConnection.setRequestProperty("ConnectionTimeout", "12000"); urlConnection.setRequestProperty("Content-Length", "" + request.length); I think the following post has a similar problem: <a href="https://stackoverflow.com/questions/10057942/ioexception-with-urlconnection-and-getinputstream/17413587#17413587">IOException with URLConnection and getInputStream</a> I didn't get an IOException (well at least I don't think so), but I got this (and a whole bunch of others) 07-01 23:18:33.870: E/AndroidRuntime(30713): java.lang.IllegalStateException: Could not execute method of the activity And yes, I did add the permission to INTERNET and ACCESS_NETWORK_STATE <pre><code> <uses-permission android:name="android.permission.INTERNET" /> <uses-permission android:name = "android.permission.ACCESS_NETWORK_STATE"/> </code></pre> I'm using Eclipse and running on my Android HTC One X. Please help. Thanks in advance! Here's the stack trace after I added the AsyncTask: <pre><code>07-02 00:02:34.775: W/IInputConnectionWrapper(3799): getExtractedText on inactive InputConnection 07-02 00:02:34.785: W/IInputConnectionWrapper(3799): getTextBeforeCursor on inactive InputConnection 07-02 00:02:34.785: W/IInputConnectionWrapper(3799): getSelectedText on inactive InputConnection 07-02 00:02:34.785: W/IInputConnectionWrapper(3799): getTextAfterCursor on inactive InputConnection 07-02 00:02:34.790: W/IInputConnectionWrapper(3799): getExtractedText on inactive InputConnection 07-02 00:02:34.795: W/IInputConnectionWrapper(3799): getTextBeforeCursor on inactive InputConnection 07-02 00:02:34.795: W/IInputConnectionWrapper(3799): getExtractedText on inactive InputConnection 07-02 00:02:34.795: W/IInputConnectionWrapper(3799): getTextBeforeCursor on inactive InputConnection 07-02 00:02:34.800: W/IInputConnectionWrapper(3799): getSelectedText on inactive InputConnection 07-02 00:02:34.800: W/IInputConnectionWrapper(3799): getTextAfterCursor on inactive InputConnection 07-02 00:02:34.800: W/IInputConnectionWrapper(3799): getExtractedText on inactive InputConnection 07-02 00:02:34.805: W/IInputConnectionWrapper(3799): getTextBeforeCursor on inactive InputConnection 07-02 00:02:34.805: W/IInputConnectionWrapper(3799): getSelectedText on inactive InputConnection 07-02 00:02:34.810: W/IInputConnectionWrapper(3799): getTextAfterCursor on inactive InputConnection 07-02 00:02:34.810: W/IInputConnectionWrapper(3799): beginBatchEdit on inactive InputConnection 07-02 00:02:34.815: W/IInputConnectionWrapper(3799): getExtractedText on inactive InputConnection 07-02 00:02:34.815: W/IInputConnectionWrapper(3799): getTextBeforeCursor on inactive InputConnection 07-02 00:02:34.820: W/IInputConnectionWrapper(3799): getSelectedText on inactive InputConnection 07-02 00:02:34.820: W/IInputConnectionWrapper(3799): getTextAfterCursor on inactive InputConnection 07-02 00:02:34.830: W/IInputConnectionWrapper(3799): getExtractedText on inactive InputConnection 07-02 00:02:34.830: W/IInputConnectionWrapper(3799): getTextBeforeCursor on inactive InputConnection 07-02 00:02:34.830: W/IInputConnectionWrapper(3799): getSelectedText on inactive InputConnection 07-02 00:02:34.835: W/IInputConnectionWrapper(3799): getTextAfterCursor on inactive InputConnection 07-02 00:02:34.845: W/IInputConnectionWrapper(3799): endBatchEdit on inactive InputConnection 07-02 00:02:34.845: W/IInputConnectionWrapper(3799): getExtractedText on inactive InputConnection 07-02 00:02:34.845: W/IInputConnectionWrapper(3799): getTextBeforeCursor on inactive InputConnection 07-02 00:02:34.850: W/IInputConnectionWrapper(3799): getSelectedText on inactive InputConnection 07-02 00:02:34.850: W/IInputConnectionWrapper(3799): getTextAfterCursor on inactive InputConnection 07-02 00:02:34.855: W/IInputConnectionWrapper(3799): beginBatchEdit on inactive InputConnection 07-02 00:02:34.855: W/IInputConnectionWrapper(3799): setComposingRegion on inactive InputConnection 07-02 00:02:34.855: W/IInputConnectionWrapper(3799): endBatchEdit on inactive InputConnection 07-02 00:02:34.865: W/IInputConnectionWrapper(3799): getExtractedText on inactive InputConnection 07-02 00:02:34.865: W/IInputConnectionWrapper(3799): getTextBeforeCursor on inactive InputConnection 07-02 00:02:34.870: W/IInputConnectionWrapper(3799): getSelectedText on inactive InputConnection 07-02 00:02:34.870: W/IInputConnectionWrapper(3799): getTextAfterCursor on inactive InputConnection 07-02 00:05:06.105: W/LoadedApk(5867): pakageInfo is null! try again 07-02 00:05:06.105: W/LoadedApk(5867): packageInfo still null! 07-02 00:05:06.110: D/LoadedApk(5867): dalvik.system.VMStack.getThreadStackTrace(Native Method) 07-02 00:05:06.110: D/LoadedApk(5867): java.lang.Thread.getStackTrace(Thread.java:599) 07-02 00:05:06.110: D/LoadedApk(5867): android.app.LoadedApk.initializeJavaContextClassLoader(LoadedApk.java:388) 07-02 00:05:06.110: D/LoadedApk(5867): android.app.LoadedApk.getClassLoader(LoadedApk.java:330) 07-02 00:05:06.110: D/LoadedApk(5867): android.app.LoadedApk.makeApplication(LoadedApk.java:535) 07-02 00:05:06.110: D/LoadedApk(5867): android.app.ActivityThread.handleBindApplication(ActivityThread.java:4803) 07-02 00:05:06.110: D/LoadedApk(5867): android.app.ActivityThread.access$1300(ActivityThread.java:151) 07-02 00:05:06.110: D/LoadedApk(5867): android.app.ActivityThread$H.handleMessage(ActivityThread.java:1401) 07-02 00:05:06.110: D/LoadedApk(5867): android.os.Handler.dispatchMessage(Handler.java:99) 07-02 00:05:06.110: D/LoadedApk(5867): android.os.Looper.loop(Looper.java:155) 07-02 00:05:06.110: D/LoadedApk(5867): android.app.ActivityThread.main(ActivityThread.java:5493) 07-02 00:05:06.110: D/LoadedApk(5867): java.lang.reflect.Method.invokeNative(Native Method) 07-02 00:05:06.110: D/LoadedApk(5867): java.lang.reflect.Method.invoke(Method.java:511) 07-02 00:05:06.110: D/LoadedApk(5867): com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1028) 07-02 00:05:06.110: D/LoadedApk(5867): com.android.internal.os.ZygoteInit.main(ZygoteInit.java:795) 07-02 00:05:06.110: D/LoadedApk(5867): dalvik.system.NativeStart.main(Native Method) 07-02 00:05:09.565: I/dalvikvm-heap(6053): Grow heap (frag case) to 5.448MB for 1705652-byte allocation 07-02 00:05:09.810: I/dalvikvm-heap(6053): Grow heap (frag case) to 8.340MB for 3034580-byte allocation 07-02 00:05:09.905: I/MediaPlayer(6053): setLPAflag() in 07-02 00:05:09.905: I/MediaPlayer(6053): mContext is null, can't getMirrorDisplayStatus!!! 07-02 00:05:09.905: I/MediaPlayer(6053): setLPAflag() out 07-02 00:05:09.910: W/MediaPlayer(6053): info/warning (1, 902) 07-02 00:05:09.915: D/MediaPlayer(6053): [DLNA]contentType = 902 07-02 00:05:09.915: D/MediaPlayer(6053): doStart() in 07-02 00:05:09.915: D/MediaPlayer(6053): getIntParameter = 902 07-02 00:05:10.190: D/MediaPlayer(6053): Mediaplayer receives message, message type: 200 07-02 00:05:10.190: I/MediaPlayer(6053): Info (1,902) 07-02 00:05:10.190: D/MediaPlayer(6053): Mediaplayer receives message, message type: 5 07-02 00:05:10.190: D/MediaPlayer(6053): Mediaplayer receives message, message type: 1 07-02 00:05:10.295: E/(6053): file /data/data/com.nvidia.NvCPLSvc/files/driverlist.txt: not found! 07-02 00:05:10.295: I/(6053): Attempting to load EGL implementation /system/lib//egl/libEGL_tegra_impl 07-02 00:05:10.485: I/(6053): Loaded EGL implementation /system/lib//egl/libEGL_tegra_impl 07-02 00:05:10.595: I/(6053): Loading GLESv2 implementation /system/lib//egl/libGLESv2_tegra_impl 07-02 00:05:11.080: W/IInputConnectionWrapper(6053): getExtractedText on inactive InputConnection 07-02 00:05:11.140: W/IInputConnectionWrapper(6053): getTextBeforeCursor on inactive InputConnection 07-02 00:05:11.430: I/dalvikvm-heap(6053): Grow heap (frag case) to 10.851MB for 2731536-byte allocation 07-02 00:05:11.830: I/MediaPlayer(6053): setLPAflag() in 07-02 00:05:11.830: I/MediaPlayer(6053): mContext is null, can't getMirrorDisplayStatus!!! 07-02 00:05:11.830: I/MediaPlayer(6053): setLPAflag() out 07-02 00:05:11.845: W/MediaPlayer(6053): info/warning (1, 902) 07-02 00:05:11.870: W/IInputConnectionWrapper(6053): getSelectedText on inactive InputConnection 07-02 00:05:11.875: D/MediaPlayer(6053): Mediaplayer receives message, message type: 200 07-02 00:05:11.875: I/MediaPlayer(6053): Info (1,902) 07-02 00:05:11.875: D/MediaPlayer(6053): Mediaplayer receives message, message type: 5 07-02 00:05:11.875: D/MediaPlayer(6053): Mediaplayer receives message, message type: 1 07-02 00:05:12.025: W/IInputConnectionWrapper(6053): getTextAfterCursor on inactive InputConnection 07-02 00:05:12.600: D/MediaPlayer(6053): [DLNA]contentType = 902 07-02 00:05:12.600: D/MediaPlayer(6053): doStart() in 07-02 00:05:12.600: D/MediaPlayer(6053): getIntParameter = 902 07-02 00:05:12.645: W/IInputConnectionWrapper(6053): getExtractedText on inactive InputConnection 07-02 00:05:12.940: W/IInputConnectionWrapper(6053): getExtractedText on inactive InputConnection 07-02 00:05:12.945: W/IInputConnectionWrapper(6053): getTextBeforeCursor on inactive InputConnection 07-02 00:05:12.950: W/IInputConnectionWrapper(6053): getSelectedText on inactive InputConnection 07-02 00:05:12.955: W/IInputConnectionWrapper(6053): getTextAfterCursor on inactive InputConnection 07-02 00:05:12.960: W/IInputConnectionWrapper(6053): getExtractedText on inactive InputConnection 07-02 00:05:12.965: W/IInputConnectionWrapper(6053): getTextBeforeCursor on inactive InputConnection 07-02 00:05:12.980: W/IInputConnectionWrapper(6053): getExtractedText on inactive InputConnection 07-02 00:05:12.980: W/IInputConnectionWrapper(6053): getTextBeforeCursor on inactive InputConnection 07-02 00:05:12.985: W/IInputConnectionWrapper(6053): getSelectedText on inactive InputConnection 07-02 00:05:12.985: W/IInputConnectionWrapper(6053): getTextAfterCursor on inactive InputConnection 07-02 00:05:12.995: W/IInputConnectionWrapper(6053): getExtractedText on inactive InputConnection 07-02 00:05:13.000: W/IInputConnectionWrapper(6053): getTextBeforeCursor on inactive InputConnection 07-02 00:05:13.000: W/IInputConnectionWrapper(6053): getSelectedText on inactive InputConnection 07-02 00:05:13.005: W/IInputConnectionWrapper(6053): getTextAfterCursor on inactive InputConnection 07-02 00:05:13.005: W/IInputConnectionWrapper(6053): getExtractedText on inactive InputConnection 07-02 00:05:13.010: W/IInputConnectionWrapper(6053): getTextBeforeCursor on inactive InputConnection 07-02 00:05:13.010: W/IInputConnectionWrapper(6053): getSelectedText on inactive InputConnection 07-02 00:05:13.010: W/IInputConnectionWrapper(6053): getTextAfterCursor on inactive InputConnection 07-02 00:05:13.015: W/IInputConnectionWrapper(6053): getExtractedText on inactive InputConnection 07-02 00:05:13.015: W/IInputConnectionWrapper(6053): getTextBeforeCursor on inactive InputConnection 07-02 00:05:13.015: W/IInputConnectionWrapper(6053): getSelectedText on inactive InputConnection 07-02 00:05:13.015: W/IInputConnectionWrapper(6053): getTextAfterCursor on inactive InputConnection 07-02 00:05:13.015: W/IInputConnectionWrapper(6053): beginBatchEdit on inactive InputConnection 07-02 00:05:13.020: W/IInputConnectionWrapper(6053): endBatchEdit on inactive InputConnection 07-02 00:05:13.020: W/IInputConnectionWrapper(6053): getExtractedText on inactive InputConnection 07-02 00:05:13.020: W/IInputConnectionWrapper(6053): getTextBeforeCursor on inactive InputConnection 07-02 00:05:13.020: W/IInputConnectionWrapper(6053): getSelectedText on inactive InputConnection 07-02 00:05:13.020: W/IInputConnectionWrapper(6053): getTextAfterCursor on inactive InputConnection 07-02 00:05:13.025: W/IInputConnectionWrapper(6053): beginBatchEdit on inactive InputConnection 07-02 00:05:13.025: W/IInputConnectionWrapper(6053): setComposingRegion on inactive InputConnection 07-02 00:05:13.025: W/IInputConnectionWrapper(6053): endBatchEdit on inactive InputConnection 07-02 00:05:13.025: W/IInputConnectionWrapper(6053): getExtractedText on inactive InputConnection 07-02 00:05:13.025: W/IInputConnectionWrapper(6053): getTextBeforeCursor on inactive InputConnection 07-02 00:05:13.025: W/IInputConnectionWrapper(6053): getSelectedText on inactive InputConnection 07-02 00:05:13.025: W/IInputConnectionWrapper(6053): getTextAfterCursor on inactive InputConnection 07-02 00:05:13.165: E/SpannableStringBuilder(6053): SPAN_EXCLUSIVE_EXCLUSIVE spans cannot have a zero length 07-02 00:05:13.165: E/SpannableStringBuilder(6053): SPAN_EXCLUSIVE_EXCLUSIVE spans cannot have a zero length 07-02 00:05:13.295: D/MediaPlayer(6053): Mediaplayer receives message, message type: 2 07-02 00:05:16.440: W/System.err(6053): java.io.FileNotFoundException: http://www.google.com/ 07-02 00:05:16.445: W/System.err(6053): at libcore.net.http.HttpURLConnectionImpl.getInputStream(HttpURLConnectionImpl.java:177) 07-02 00:05:16.445: W/System.err(6053): at aiti.mit.edu.sa.wu.calculator.MyAsynTask.doInBackground(ActivityHi.java:139) 07-02 00:05:16.445: W/System.err(6053): at aiti.mit.edu.sa.wu.calculator.MyAsynTask.doInBackground(ActivityHi.java:1) 07-02 00:05:16.445: W/System.err(6053): at android.os.AsyncTask$2.call(AsyncTask.java:287) 07-02 00:05:16.445: W/System.err(6053): at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:305) 07-02 00:05:16.445: W/System.err(6053): at java.util.concurrent.FutureTask.run(FutureTask.java:137) 07-02 00:05:16.445: W/System.err(6053): at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:230) 07-02 00:05:16.445: W/System.err(6053): at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1076) 07-02 00:05:16.450: W/System.err(6053): at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:569) 07-02 00:05:16.450: W/System.err(6053): at java.lang.Thread.run(Thread.java:864) 07-02 00:05:16.450: W/dalvikvm(6053): threadid=12: thread exiting with uncaught exception (group=0x40c392d0) 07-02 00:05:16.460: E/AndroidRuntime(6053): FATAL EXCEPTION: AsyncTask #1 07-02 00:05:16.460: E/AndroidRuntime(6053): java.lang.RuntimeException: An error occured while executing doInBackground() 07-02 00:05:16.460: E/AndroidRuntime(6053): at android.os.AsyncTask$3.done(AsyncTask.java:299) 07-02 00:05:16.460: E/AndroidRuntime(6053): at java.util.concurrent.FutureTask$Sync.innerSetException(FutureTask.java:273) 07-02 00:05:16.460: E/AndroidRuntime(6053): at java.util.concurrent.FutureTask.setException(FutureTask.java:124) 07-02 00:05:16.460: E/AndroidRuntime(6053): at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:307) 07-02 00:05:16.460: E/AndroidRuntime(6053): at java.util.concurrent.FutureTask.run(FutureTask.java:137) 07-02 00:05:16.460: E/AndroidRuntime(6053): at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:230) 07-02 00:05:16.460: E/AndroidRuntime(6053): at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1076) 07-02 00:05:16.460: E/AndroidRuntime(6053): at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:569) 07-02 00:05:16.460: E/AndroidRuntime(6053): at java.lang.Thread.run(Thread.java:864) 07-02 00:05:16.460: E/AndroidRuntime(6053): Caused by: java.lang.NullPointerException 07-02 00:05:16.460: E/AndroidRuntime(6053): at aiti.mit.edu.sa.wu.calculator.MyAsynTask.doInBackground(ActivityHi.java:153) 07-02 00:05:16.460: E/AndroidRuntime(6053): at aiti.mit.edu.sa.wu.calculator.MyAsynTask.doInBackground(ActivityHi.java:1) 07-02 00:05:16.460: E/AndroidRuntime(6053): at android.os.AsyncTask$2.call(AsyncTask.java:287) 07-02 00:05:16.460: E/AndroidRuntime(6053): at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:305) 07-02 00:05:16.460: E/AndroidRuntime(6053): ... 5 more 07-02 00:05:19.770: D/Process(6053): killProcess, pid=6053 07-02 00:05:19.800: D/Process(6053): dalvik.system.VMStack.getThreadStackTrace(Native Method) 07-02 00:05:19.800: D/Process(6053): java.lang.Thread.getStackTrace(Thread.java:599) 07-02 00:05:19.800: D/Process(6053): android.os.Process.killProcess(Process.java:944) 07-02 00:05:19.800: D/Process(6053): com.android.internal.os.RuntimeInit$UncaughtHandler.uncaughtException(RuntimeInit.java:108) 07-02 00:05:19.800: D/Process(6053): java.lang.ThreadGroup.uncaughtException(ThreadGroup.java:693) 07-02 00:05:19.800: D/Process(6053): java.lang.ThreadGroup.uncaughtException(ThreadGroup.java:690) 07-02 00:05:20.290: I/dalvikvm-heap(6336): Grow heap (frag case) to 5.287MB for 1536016-byte allocation 07-02 00:05:20.375: I/dalvikvm-heap(6336): Grow heap (frag case) to 7.890MB for 2731536-byte allocation 07-02 00:05:20.590: I/MediaPlayer(6336): setLPAflag() in 07-02 00:05:20.590: I/MediaPlayer(6336): mContext is null, can't getMirrorDisplayStatus!!! 07-02 00:05:20.590: I/MediaPlayer(6336): setLPAflag() out 07-02 00:05:20.590: W/MediaPlayer(6336): info/warning (1, 902) 07-02 00:05:20.635: D/MediaPlayer(6336): Mediaplayer receives message, message type: 200 07-02 00:05:20.635: I/MediaPlayer(6336): Info (1,902) 07-02 00:05:20.635: D/MediaPlayer(6336): Mediaplayer receives message, message type: 5 07-02 00:05:20.635: D/MediaPlayer(6336): Mediaplayer receives message, message type: 1 07-02 00:05:20.685: E/(6336): file /data/data/com.nvidia.NvCPLSvc/files/driverlist.txt: not found! 07-02 00:05:20.685: I/(6336): Attempting to load EGL implementation /system/lib//egl/libEGL_tegra_impl 07-02 00:05:20.735: I/(6336): Loaded EGL implementation /system/lib//egl/libEGL_tegra_impl 07-02 00:05:20.820: I/(6336): Loading GLESv2 implementation /system/lib//egl/libGLESv2_tegra_impl 07-02 00:05:21.215: E/SpannableStringBuilder(6336): SPAN_EXCLUSIVE_EXCLUSIVE spans cannot have a zero length 07-02 00:05:21.215: E/SpannableStringBuilder(6336): SPAN_EXCLUSIVE_EXCLUSIVE spans cannot have a zero length 07-02 00:05:22.575: E/SpannableStringBuilder(6336): SPAN_EXCLUSIVE_EXCLUSIVE spans cannot have a zero length 07-02 00:05:22.575: E/SpannableStringBuilder(6336): SPAN_EXCLUSIVE_EXCLUSIVE spans cannot have a zero length </code></pre> and this is AsyncTank... <pre><code>protected String doInBackground(String... arg0) { try { URL url = new URL("http://www.google.com/"); HttpURLConnection conn = (HttpURLConnection) url.openConnection(); conn.setDoInput(true); conn.setDoOutput(true); input = new InputStreamReader(conn.getInputStream()); in =new BufferedReader(input); System.out.println("HELLO"); } catch (MalformedURLException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); } finally { conn.disconnect(); } return null; } </code></pre>
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Android - .getInputStream() keeps on crashing
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