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Why does second http request is always null?

When I do http request in the PoolData(), request returns with data, and in AccoutData is always null.
In debugger, if I wait 1-2 sec after PoolData(), next request - returns not null. Method oder doesn't metter. Why is that, and how can I wait for 2nd request?
public void onClick(View v) {
new PoolData().execute();
}
private class PoolData extends AsyncTask<Void, Void, Void> {
#Override
protected void onPreExecute() {
super.onPreExecute();
dataPool.clear();
}
#Override
protected Void doInBackground(Void... arg0) {
PoolData();
AccoutData();
return null;
}
private void PoolData(){
HttpHandler sh = new HttpHandler();
String statsBrowser = "http://api.electroneum.space/v1/stats/nonBrowser";
String browserStr = sh.makeServiceCall(statsBrowser);
//parsing...
}
private void AccoutData(){
HttpHandler sh = new HttpHandler();
String statsAddress = "http://api.electroneum.space/v1/stats/address/" + settings.getString(lp, "n/a");
String addressStr = sh.makeServiceCall(statsAddress);
//parsing...
}
public class HttpHandler {
private static final String TAG = HttpHandler.class.getSimpleName();
public HttpHandler() {
}
public String makeServiceCall(String reqUrl) {
String response = null;
try {
URL url = new URL(reqUrl);
HttpURLConnection conn = (HttpURLConnection) url.openConnection();
conn.setRequestMethod("GET");
InputStream in = new BufferedInputStream(conn.getInputStream());
response = convertStreamToString(in);
Log.e(TAG, "Responce: " + response);
} catch (MalformedURLException e) {
Log.e(TAG, "MalformedURLException: " + e.toString());
} catch (ProtocolException e) {
Log.e(TAG, "ProtocolException: " + e.toString());
} catch (IOException e) {
Log.e(TAG, "IOException: " + e.toString());
} catch (Exception e) {
Log.e(TAG, "Exception: " + e.toString());
}
return response;
}
private String convertStreamToString(InputStream is) {
BufferedReader reader = new BufferedReader(new InputStreamReader(is));
StringBuilder sb = new StringBuilder();
String line;
try {
while ((line = reader.readLine()) != null) {
sb.append(line).append('\n');
}
} catch (IOException e) {
e.printStackTrace();
} finally {
try {
is.close();
} catch (IOException e) {
e.printStackTrace();
}
}
return sb.toString();
}
}
12-14 14:27:18.941 6624-6651/dev.flair.the.electroneumspacepool
I/OpenGLRenderer: Initialized EGL, version 1.4
12-14 14:27:18.956 6624-6651/dev.flair.the.electroneumspacepool I/OpenGLRenderer: Get enable program binary service property (1)
12-14 14:27:18.956 6624-6651/dev.flair.the.electroneumspacepool I/OpenGLRenderer: Initializing program atlas...
12-14 14:27:18.958 6624-6651/dev.flair.the.electroneumspacepool I/OpenGLRenderer: Program binary detail: Binary length is 169916, program map length is 152.
12-14 14:27:18.958 6624-6651/dev.flair.the.electroneumspacepool I/OpenGLRenderer: Succeeded to mmap program binaries. File descriptor is 54, and path is /dev/ashmem .
12-14 14:27:18.958 6624-6651/dev.flair.the.electroneumspacepool I/OpenGLRenderer: No need to use file discriptor anymore, close fd(54).
12-14 14:27:18.979 6624-6624/dev.flair.the.electroneumspacepool W/art: Before Android 4.1, method int android.support.v7.widget.ListViewCompat.lookForSelectablePosition(int, boolean) would have incorrectly overridden the package-private method in android.widget.ListView
12-14 14:27:19.035 6624-6651/dev.flair.the.electroneumspacepool W/MALI: glDrawArrays:714: [MALI] glDrawArrays takes more than 5ms here. Total elapse time(us): 10394
12-14 14:27:23.448 6624-6672/dev.flair.the.electroneumspacepool I/System.out: url:http://api.electroneum.space/v1/stats/address/hVDo4adTwWsPK1
12-14 14:27:23.452 6624-6672/dev.flair.the.electroneumspacepool I/System.out: open:http://api.electroneum.space/v1/stats/address/hVDo4adTwWsPK1
12-14 14:27:23.454 6624-6672/dev.flair.the.electroneumspacepool D/libc-netbsd: [getaddrinfo]: mtk hostname=api.electroneum.space; servname=(null); cache_mode=(null), netid=0; mark=0
12-14 14:27:23.454 6624-6672/dev.flair.the.electroneumspacepool D/libc-netbsd: getaddrinfo( app_uid:10085
12-14 14:27:23.454 6624-6672/dev.flair.the.electroneumspacepool D/libc-netbsd: getaddrinfo() uid prop:
12-14 14:27:23.454 6624-6672/dev.flair.the.electroneumspacepool D/libc-netbsd: getaddrinfo() getuid():10085
12-14 14:27:23.454 6624-6672/dev.flair.the.electroneumspacepool D/libc-netbsd: [getaddrinfo]: mtk ai_addrlen=0; ai_canonname=(null); ai_flags=4; ai_family=0
12-14 14:27:23.454 6624-6672/dev.flair.the.electroneumspacepool D/libc-netbsd: [getaddrinfo]: mtk hostname=api.electroneum.space; servname=(null); cache_mode=(null), netid=0; mark=0
12-14 14:27:23.454 6624-6672/dev.flair.the.electroneumspacepool D/libc-netbsd: getaddrinfo( app_uid:10085
12-14 14:27:23.454 6624-6672/dev.flair.the.electroneumspacepool D/libc-netbsd: getaddrinfo() uid prop:
12-14 14:27:23.454 6624-6672/dev.flair.the.electroneumspacepool D/libc-netbsd: getaddrinfo() getuid():10085
12-14 14:27:23.454 6624-6672/dev.flair.the.electroneumspacepool D/libc-netbsd: [getaddrinfo]: mtk ai_addrlen=0; ai_canonname=(null); ai_flags=1024; ai_family=0
12-14 14:27:23.457 6624-6672/dev.flair.the.electroneumspacepool D/libc-netbsd: getaddrinfo: api.electroneum.space get result from proxy >>
12-14 14:27:23.457 6624-6672/dev.flair.the.electroneumspacepool I/System.out: propertyValue:true
12-14 14:27:23.459 6624-6672/dev.flair.the.electroneumspacepool I/System.out: [CDS]connect[api.electroneum.space/104.27.156.123:80] tm:90
12-14 14:27:23.497 6624-6672/dev.flair.the.electroneumspacepool I/System.out: [OkHttp] sendRequest>>
12-14 14:27:23.497 6624-6672/dev.flair.the.electroneumspacepool I/System.out: [OkHttp] sendRequest<<
12-14 14:27:23.612 6624-6672/dev.flair.the.electroneumspacepool E/HttpHandler: MalformedURLException: java.io.BufferedInputStream#3d6a54f5
12-14 14:27:23.613 6624-6672/dev.flair.the.electroneumspacepool I/NetworkManagementSocketTagger: untagSocket(56)
12-14 17:08:49.897 19931-20613/dev.flair.the.electroneumspacepool E/HttpHandler: Responce:
{"stats":{"data...."}}
12-14 17:08:49.899 19931-20613/dev.flair.the.electroneumspacepool I/System.out: url:http://api.electroneum.space/v1/stats/nonBrowser
12-14 17:08:49.900 19931-20613/dev.flair.the.electroneumspacepool I/System.out: open:http://api.electroneum.space/v1/stats/nonBrowser
12-14 17:08:49.901 19931-20613/dev.flair.the.electroneumspacepool I/System.out: [OkHttp] sendRequest>>
12-14 17:08:49.901 19931-20613/dev.flair.the.electroneumspacepool I/System.out: [OkHttp] sendRequest<<
12-14 17:08:50.008 19931-20613/dev.flair.the.electroneumspacepool E/HttpHandler: IOException: java.io.FileNotFoundException: http://api.electroneum.space/v1/stats/nonBrowser
12-14 17:08:50.008 19931-20613/dev.flair.the.electroneumspacepool E/MainActivity: Response from browser: null

Bitmap returns null when taking screenshot

I'm trying to get a screenshot from a fragment, but seems that when I do
bitmap = view.getDrawingCache(); it returns null. Does anyone knows why is this happening and how can I fix this?
here is my code:
public void takeScreenshot(View view) {
OutputStream output;
view = view.getRootView();
view.setDrawingCacheEnabled(true);
view.buildDrawingCache(true);
File filepath = Environment.getExternalStorageDirectory();
File dir = new File(filepath + "/"
+ getString(R.string.app_name) + "/");
dir.mkdirs();
File file = new File(dir, getString(R.string.app_name) + ".jpg");
bitmap = view.getDrawingCache();
try {
output = new FileOutputStream(file);
bitmap.compress(Bitmap.CompressFormat.PNG, 80, output);
output.flush();
output.close();
Log.d(TAG, "screenshot saved");
} catch (FileNotFoundException e1) {
e1.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
}
and calling the method
takeScreenshot(getActivity().findViewById(R.id.fragment_container));
and here is the logCat output:
java.lang.RuntimeException: Unable to start activity ComponentInfo{com.contractfit/com.contractfit.activities.MainActivity}: java.lang.NullPointerException
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2413)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2471)
at android.app.ActivityThread.access$900(ActivityThread.java:175)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1308)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:146)
at android.app.ActivityThread.main(ActivityThread.java:5602)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:515)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1283)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1099)
at dalvik.system.NativeStart.main(Native Method)
Caused by: java.lang.NullPointerException
at com.contractfit.fragments.BaseFragment.takeScreenshot(BaseFragment.java:532)
at com.contractfit.fragments.MainFragment.init(MainFragment.java:211)
at com.contractfit.fragments.MainFragment.onCreateView(MainFragment.java:116)
at android.support.v4.app.Fragment.performCreateView(Fragment.java:1789)
at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:955)
at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1138)
at android.support.v4.app.BackStackRecord.run(BackStackRecord.java:740)
at android.support.v4.app.FragmentManagerImpl.execPendingActions(FragmentManager.java:1501)
at android.support.v4.app.FragmentActivity.onStart(FragmentActivity.java:551)
at android.app.Instrumentation.callActivityOnStart(Instrumentation.java:1177)
at android.app.Activity.performStart(Activity.java:5461)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2386)
            at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2471)
            at android.app.ActivityThread.access$900(ActivityThread.java:175)
            at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1308)
            at android.os.Handler.dispatchMessage(Handler.java:102)
            at android.os.Looper.loop(Looper.java:146)
            at android.app.ActivityThread.main(ActivityThread.java:5602)
            at java.lang.reflect.Method.invokeNative(Native Method)

Consider doing this like Instrumentation test cases do it, your code is close but differs a bit.
From https://android.googlesource.com/platform/external/droiddriver/+/367267b/src/io/appium/droiddriver/instrumentation/InstrumentationUiDevice.java
Get root view (if it's public):
context.getDriver().getRootElement().getRawElement()));
Take screenshot
public Bitmap call() {
Bitmap screenshot;
rootView.destroyDrawingCache();
rootView.buildDrawingCache(false);
Bitmap drawingCache = rootView.getDrawingCache();
int[] xy = new int[2];
rootView.getLocationOnScreen(xy);
if (xy[0] == 0 && xy[1] == 0) {
screenshot = Bitmap.createBitmap(drawingCache);
} else {
Canvas canvas = new Canvas();
Rect rect = new Rect(0, 0, drawingCache.getWidth(), drawingCache.getHeight());
rect.offset(xy[0], xy[1]);
screenshot =
Bitmap.createBitmap(rect.width() + xy[0], rect.height() + xy[1], Config.ARGB_8888);
canvas.setBitmap(screenshot);
canvas.drawBitmap(drawingCache, null, new RectF(rect), null);
canvas.setBitmap(null);
}
rootView.destroyDrawingCache();
return screenshot;

How to check if android.hardware.Camera is released?

I got an exception while releasing camera object "java.lang.RuntimeException: Method called after release"
following is my code and exception stack trace.
if (camera != null) {
camera.stopPreview();
camera.release();
camera = null;
}
Exception stack trace -
java.lang.RuntimeException: Method called after release()
Thread[main,5,main] android.hardware.Camera._stopPreview(Native Method)
android.hardware.Camera.stopPreview(Camera.java:626)
com.s5.selfiemonkey1.activity.Preview.surfaceDestroyed(Preview.java:152)
android.view.SurfaceView.updateWindow(SurfaceView.java:601)
android.view.SurfaceView.access$000(SurfaceView.java:88)
android.view.SurfaceView$3.onPreDraw(SurfaceView.java:183)
android.view.ViewTreeObserver.dispatchOnPreDraw(ViewTreeObserver.java:680)
android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:2123)
android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1139)
android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:4872)
android.view.Choreographer$CallbackRecord.run(Choreographer.java:776)
android.view.Choreographer.doCallbacks(Choreographer.java:579)
android.view.Choreographer.doFrame(Choreographer.java:548)
android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:762)
android.os.Handler.handleCallback(Handler.java:800)
android.os.Handler.dispatchMessage(Handler.java:100)
android.os.Looper.loop(Looper.java:194)
android.app.ActivityThread.main(ActivityThread.java:5371)
java.lang.reflect.Method.invokeNative(Native Method)
java.lang.reflect.Method.invoke(Method.java:525)
com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:833)
com.android.internal.os.ZygoteInit.main(ZygoteInit.java:600)
it look like stopPreview() is called on released object.

I had made a method which would return me boolean depending of whether camera is in use or not. Below is a small snipet:
public static Camera checkForCamera(){
Camera camera = null;
try {
camera = Camera.open(); // this line will throw exception if camera is not in use.
}
catch (Exception e){
// if exception is thrown, return your boolean value here...
}
return camera; // if instance of camera, if it is not available it will return null.
}

Java RuntimeException: Unable to instaniate activity component info widget

I've looked around on SOF and haven't been able to find anything helpful.
First off, I'll say what is happening. When I run my widget, it all works fine until I hit a checkbox on a listView item and run this coding:
#Override
public void onClick(View v) {
if (addCheckbox.isChecked()) {
System.out.println("Checked");
PackageManager pm = mContext.getPackageManager();
final int DEST_IMAGE_WIDTH = 100;
final int DEST_IMAGE_HEIGHT = 100;
ApplicationInfo appInfo = mContext.getApplicationInfo();
Drawable appIcon = pm.getApplicationIcon(appInfo);
Bitmap appBmp = Bitmap.createBitmap(DEST_IMAGE_WIDTH, DEST_IMAGE_HEIGHT, Config.ARGB_8888);
// Creates a new canvas based on the image specification
// created just above.
Canvas canvas = new Canvas(appBmp);
// (optional) Fills the entire canvas
canvas.drawColor(Color.WHITE);
// You need to set bounds otherwise a 0,0 sized image would be drawn.
appIcon.setBounds(0, 0, DEST_IMAGE_WIDTH, DEST_IMAGE_HEIGHT);
appIcon.draw(canvas);
/// Let's save to a .jpg file ...
File file = new File(mContext.getFilesDir().getAbsolutePath() + "/test2.jpg");
FileOutputStream out;
try
{
file.createNewFile();
out = mContext.getApplicationContext().openFileOutput("BitmapImage", Context.MODE_PRIVATE);
appBmp.compress(Bitmap.CompressFormat.JPEG, 80, out);
Log.i("AppInfoAdapter", "the icon(s) have been saved");
out.close();
// Load back the image file to confirm it works
// Bitmap bitmap = BitmapFactory.decodeFile(file.getAbsolutePath() );
// ImageView imageV = (ImageView)findViewById(R.id.);
// imageV.setImageBitmap(bitmap);
}
catch (FileNotFoundException e1)
{
e1.printStackTrace();
}
catch (IOException e2)
{
e2.printStackTrace();
}
Intent intent = new Intent (v.getContext(), GridViewAdapter.class);
v.getContext().startActivity(intent);
Log.i("AppInfoAdapter", "New intent started to send icon bitmap");
} else {
System.out.println("Un-Checked");
}
Everything works great and I even get the Log message that "New intent started to send icon bitmap". However, as soon as this is done, I get this error:
12-14 13:47:54.413: E/AndroidRuntime(1785): FATAL EXCEPTION: main
12-14 13:47:54.413: E/AndroidRuntime(1785): java.lang.RuntimeException: Unable to instantiate activity ComponentInfo{com.example.awesomefilebuilderwidget/com.example.awesomefilebuilderwidget.GridViewAdapter}: java.lang.InstantiationException: com.example.awesomefilebuilderwidget.GridViewAdapter
12-14 13:47:54.413: E/AndroidRuntime(1785): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1746)
12-14 13:47:54.413: E/AndroidRuntime(1785): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1854)
12-14 13:47:54.413: E/AndroidRuntime(1785): at android.app.ActivityThread.access$1500(ActivityThread.java:135)
12-14 13:47:54.413: E/AndroidRuntime(1785): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1041)
12-14 13:47:54.413: E/AndroidRuntime(1785): at android.os.Handler.dispatchMessage(Handler.java:99)
12-14 13:47:54.413: E/AndroidRuntime(1785): at android.os.Looper.loop(Looper.java:150)
12-14 13:47:54.413: E/AndroidRuntime(1785): at android.app.ActivityThread.main(ActivityThread.java:4333)
12-14 13:47:54.413: E/AndroidRuntime(1785): at java.lang.reflect.Method.invokeNative(Native Method)
12-14 13:47:54.413: E/AndroidRuntime(1785): at java.lang.reflect.Method.invoke(Method.java:507)
12-14 13:47:54.413: E/AndroidRuntime(1785): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:839)
12-14 13:47:54.413: E/AndroidRuntime(1785): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:597)
12-14 13:47:54.413: E/AndroidRuntime(1785): at dalvik.system.NativeStart.main(Native Method)
12-14 13:47:54.413: E/AndroidRuntime(1785): Caused by: java.lang.InstantiationException: com.example.awesomefilebuilderwidget.GridViewAdapter
12-14 13:47:54.413: E/AndroidRuntime(1785): at java.lang.Class.newInstanceImpl(Native Method)
12-14 13:47:54.413: E/AndroidRuntime(1785): at java.lang.Class.newInstance(Class.java:1409)
12-14 13:47:54.413: E/AndroidRuntime(1785): at android.app.Instrumentation.newActivity(Instrumentation.java:1040)
12-14 13:47:54.413: E/AndroidRuntime(1785): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1738)
12-14 13:47:54.413: E/AndroidRuntime(1785): ... 11 more
This is the class in question:
package com.example.awesomefilebuilderwidget;
IMPORTS
public class GridViewAdapter extends BaseAdapter {
private Context Context;
// Keep all Images in array list
public ArrayList<Integer> drawables = new ArrayList<Integer>();
CheckBox mCheckBox=null;
// Constructor
public GridViewAdapter(Context c){
Context = c;
Log.d("GridViewAdapter", "Constructor is set");
drawables.add(R.drawable.pattern1);
Log.d("GridViewAdapter", "pattern1 added");
drawables.add(R.drawable.pattern2);
Log.d("GridViewAdapter", "pattern2 added");
drawables.add(R.drawable.trashcan);
Log.d("GridViewAdapter", "trashcan added");
drawables.add(R.drawable.ic_launcher);
Log.d("GridViewAdapter", "ic_launcher added");
}
public void setCheckBox(CheckBox checkbox){
mCheckBox=checkbox;
}
#Override
// How many items are in the data set represented by this Adapter
public int getCount() {
return drawables.size();
}
#Override
// Get the data item associated with the specified position in the
// data set
public Object getItem(int position) {
return drawables.get(position);
}
#Override
public long getItemId(int position) {
return position;
}
public boolean isSdReadable() {
boolean mExternalStorageAvailable = false;
String state = Environment.getExternalStorageState();
if (Environment.MEDIA_MOUNTED.equals(state)) {
// We can read and write the media
mExternalStorageAvailable = true;
Log.i("isSdReadable", "External storage card is readable.");
} else if (Environment.MEDIA_MOUNTED_READ_ONLY.equals(state)) {
// We can only read the media
Log.i("isSdReadable", "External storage card is readable.");
mExternalStorageAvailable = true;
} else {
// Something else is wrong. It may be one of many other
// states, but all we need to know is we can neither read nor write
mExternalStorageAvailable = false;
}
return mExternalStorageAvailable;
}
public Bitmap getThumbnail() {
final String APP_PATH_SD_CARD = "/TEST/";
final String APP_THUMBNAIL_PATH_SD_CARD = "thumbnails";
String filename = "AFBWIcon.png";
String fullPath = Environment.getExternalStorageDirectory().getAbsolutePath() + APP_PATH_SD_CARD + APP_THUMBNAIL_PATH_SD_CARD;
Bitmap thumbnail = null;
// Look for the file on the external storage
try {
if (isSdReadable() == true) {
thumbnail = BitmapFactory.decodeFile(fullPath + "/" + filename);
}
} catch (Exception e) {
Log.e("getThumbnail() on external storage", e.getMessage());
}
// If no file on external storage, look in internal storage
if (thumbnail == null) {
try {
File filePath = Context.getFileStreamPath(filename);
FileInputStream fi = new FileInputStream(filePath);
thumbnail = BitmapFactory.decodeStream(fi);
} catch (Exception ex) {
Log.e("getThumbnail() on internal storage", ex.getMessage());
}
}
return thumbnail;
}
#Override
public View getView(int position, View convertView, ViewGroup parent) {
// Try to reuse the views
ImageView view = (ImageView) convertView;
boolean checked = (mCheckBox==null)?false:(((CheckBox) mCheckBox).isChecked());
// if convert view is null then create a new instance else reuse it
if (view == null) {
view = new ImageView(Context);
Log.d("GridViewAdapter", "new imageView added");
}
if(checked == true){
isSdReadable();
try {
Log.i("GridViewAdapter", "checkbox is checked");
FileInputStream in = Context.openFileInput("BitmapImage");
// Load back the image file to confirm it works
Bitmap bitmap = BitmapFactory.decodeStream(in);
view.setImageBitmap(bitmap);
in.close();
} catch (FileNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
// getThumbnail();
catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
} else {
Log.e("GridView", "Icons not for use/checkbox not checked");
}
view.setImageResource(drawables.get(position));
view.setScaleType(ImageView.ScaleType.CENTER_CROP);
view.setLayoutParams(new android.widget.GridView.LayoutParams(70, 70));
view.setTag(String.valueOf(position));
return view;
}
}
Also, this is my Manifest:
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.awesomefilebuilderwidget"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk
android:minSdkVersion="8"
android:targetSdkVersion="18" />
<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<application
android:allowBackup="true"
android:icon="#drawable/ic_launcher"
android:label="#string/app_name"
android:theme="#style/AppTheme" >
<receiver android:name="com.example.awesomefilebuilderwidget.AFBWidget" android:label="#string/app_name">
<intent-filter>
<action android:name="android.appwidget.action.APPWIDGET_UPDATE"/>
</intent-filter>
<meta-data android:name="android.appwidget.provider"
android:resource="#xml/widget_stuff"/>
</receiver>
<activity android:name="com.example.awesomefilebuilderwidget.WidgetConfig" android:label="#string/app_name">
<intent-filter>
<action android:name="android.appwidget.action.APPWIDGET_CONFIGURE"/>
</intent-filter>
</activity>
<activity android:name="com.example.awesomefilebuilderwidget.Drag_and_Drop_App" android:label="#string/app_name" android:windowSoftInputMode="stateHidden" android:screenOrientation="portrait"></activity>
<activity android:name="com.example.awesomefilebuilderwidget.AppInfoAdapter" android:label="#string/app_name" ></activity>
<activity android:name="com.example.awesomefilebuilderwidget.Feedback" android:label="#string/app_name" ></activity>
<activity android:name="com.example.awesomefilebuilderwidget.GridView" android:label="#string/app_name" ></activity>
<activity android:name="com.example.awesomefilebuilderwidget.SendMessageActivity" android:label="#string/app_name" ></activity>
<activity android:name="com.example.awesomefilebuilderwidget.Utilities" android:label="#string/app_name" ></activity>
<activity android:name="com.example.awesomefilebuilderwidget.Personalize" android:label="#string/app_name" ></activity>
<activity android:name="com.example.awesomefilebuilderwidget.SwipeDetector" android:label="#string/app_name"></activity>
<activity android:name="com.example.awesomefilebuilderwidget.GridViewAdapter" android:label="#string/app_name"></activity>/
</application>
</manifest>
I was told that since it is an adapter, not an activity, I should remove it from my Manifest. But, when I do this, I get this error:
12-14 12:57:04.047: E/AndroidRuntime(708): android.content.ActivityNotFoundException: Unable to find explicit activity class {com.example.awesomefilebuilderwidget/com.example.awesomefilebuilderwidget.GridV‌​iewAdapter}; have you declared this activity in your AndroidManifest.xml?
It seems as though I am stuck between the choice of having the class or not.
I haven't had this issue up until now and I have tried cleaning my project.
Please help!

I was told that since it is an adapter, not an activity, I should remove it from my Manifest.
Correct.
But, when I do this, I get this error:
That would be because in your code shown above, you are calling startActivity() incorrectly, trying to start GridV‌​iewAdapter as an activity. GridV‌​iewAdapter is not an activity. If you want to start an activity, write an activity, add it to the manifest, and then call startActivity() for your newly-written activity.
You can learn more about activities in the documentation.

Android downloading a file getting a FileNotFoundException

else if (v.getId() == R.id.update) {
StrictMode.ThreadPolicy policy = new StrictMode.ThreadPolicy.Builder().permitAll().build();
StrictMode.setThreadPolicy(policy);
try {
URL url = new URL("http://darkliteempire.gaming.multiplay.co.uk/testdownload.txt");
//create the new connection
HttpURLConnection urlConnection = (HttpURLConnection) url.openConnection();
//set up some things on the connection
urlConnection.setRequestMethod("GET");
urlConnection.setDoOutput(true);
//and connect!
urlConnection.connect();
//set the path where we want to save the file
//in this case, going to save it on the root directory of the
//sd card.
File SDCardRoot = new File("/sdcard/"+"download/");
//create a new file, specifying the path, and the filename
//which we want to save the file as.
File file = new File(SDCardRoot,"test.txt");
//this will be used to write the downloaded data into the file we created
FileOutputStream fileOutput = new FileOutputStream(file);
//this will be used in reading the data from the internet
InputStream inputStream = urlConnection.getInputStream();
//this is the total size of the file
int totalSize = urlConnection.getContentLength();
//variable to store total downloaded bytes
int downloadedSize = 0;
//create a buffer...
byte[] buffer = new byte[1024];
int bufferLength = 0; //used to store a temporary size of the buffer
//now, read through the input buffer and write the contents to the file
while ( (bufferLength = inputStream.read(buffer)) > 0 )
{
//add the data in the buffer to the file in the file output stream (the file on the sd card
fileOutput.write(buffer, 0, bufferLength);
//add up the size so we know how much is downloaded
downloadedSize += bufferLength;
int progress=(int)(downloadedSize*100/totalSize);
//this is where you would do something to report the prgress, like this maybe
//updateProgress(downloadedSize, totalSize);
}
//close the output stream when done
fileOutput.close();
} catch (MalformedURLException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
} catch (ProtocolException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
} catch (FileNotFoundException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
} catch (IOException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
}
this code keeps coming out with the FileNotFoundException, but the file is there, if you follow the url you can see it.
does it have to be hosted in a specific way? or is it something wrong with the way im getting it
EDIT: this is the logcat message
12-14 22:29:19.890: W/System.err(24557): java.io.FileNotFoundException: http://darkliteempire.gaming.multiplay.co.uk/testdownload.txt
12-14 22:29:19.890: W/System.err(24557): at libcore.net.http.HttpURLConnectionImpl.getInputStream(HttpURLConnectionImpl.java:177)
12-14 22:29:19.890: W/System.err(24557): at com.MasterZangetsu.kentrocksoc.MainActivity.onClick(MainActivity.java:99)
12-14 22:29:19.890: W/System.err(24557): at android.view.View.performClick(View.java:3591)
12-14 22:29:19.890: W/System.err(24557): at android.view.View$PerformClick.run(View.java:14263)
12-14 22:29:19.895: W/System.err(24557): at android.os.Handler.handleCallback(Handler.java:605)
12-14 22:29:19.895: W/System.err(24557): at android.os.Handler.dispatchMessage(Handler.java:92)
12-14 22:29:19.895: W/System.err(24557): at android.os.Looper.loop(Looper.java:137)
12-14 22:29:19.895: W/System.err(24557): at android.app.ActivityThread.main(ActivityThread.java:4507)
12-14 22:29:19.895: W/System.err(24557): at java.lang.reflect.Method.invokeNative(Native Method)
12-14 22:29:19.895: W/System.err(24557): at java.lang.reflect.Method.invoke(Method.java:511)
12-14 22:29:19.895: W/System.err(24557): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:790)
12-14 22:29:19.895: W/System.err(24557): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:557)
12-14 22:29:19.895: W/System.err(24557): at dalvik.system.NativeStart.main(Native Method)
12-14 22:29:20.170: W/WifiStateTracker(2010): getNetworkInfo : NetworkInfo: type: WIFI[], state: DISCONNECTED/DISCONNECTED, reason: (unspecified), extra: (none), roaming: false, failover: false, isAvailable: false

comment the below piece of line in your code.
urlConnection.setDoOutput(true);