Develop Reference

How to fix Integer.intValue() for RTL languages in Android

In my application I write some codes and this codes I used string.
I want use UTF-8 languages (Farsi), But after run application show me error and force close application.
But when use English language not show me any error and run successfully!!
My codes :
this.q.put("dry land swim", Integer.valueOf(R.array.dry_land_swim));
TypedArray obtainTypedArray = getResources().obtainTypedArray(((Integer) this.q.get(stringArray[i])).intValue());
int length = obtainTypedArray.length();
int[] iArr2 = new int[length];
WorkoutData workoutData = new WorkoutData();
for (int i2 = 0; i2 < length; i2++) {
iArr2[i2] = obtainTypedArray.getResourceId(i2, -1);
}
workoutData.setExcName(stringArray[i]);
Log.e("ShowError", "" + (this.r.get(stringArray[i])).intValue());
workoutData.setExcDescResId(((Integer) this.r.get(stringArray[i])).intValue());
When change this line text (from En to Fa) :
this.q.put("تست", Integer.valueOf(R.array.dry_land_swim));
Show me error for this lines :
TypedArray obtainTypedArray = getResources().obtainTypedArray(((Integer) this.q.get(stringArray[i])).intValue());
workoutData.setExcDescResId(((Integer) this.r.get(stringArray[i])).intValue());
Error message :
java.lang.RuntimeException: Unable to start receiver com.crazytrends.healthmanager.WalkandStep.receivers.HardwareStepCountReceiver: java.lang.IllegalStateException: Not allowed to start service Intent { cmp=com.crazytrends.healthmanager/.WalkandStep.services.HardwareStepCounterService }: app is in background uid UidRecord{528e8bd u0a841 RCVR idle change:idle|uncached procs:1 seq(0,0,0)}
at android.app.ActivityThread.handleReceiver(ActivityThread.java:4452)
at android.app.ActivityThread.access$1600(ActivityThread.java:301)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2159)
at android.os.Handler.dispatchMessage(Handler.java:106)
at android.os.Looper.loop(Looper.java:246)
at android.app.ActivityThread.main(ActivityThread.java:8512)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:602)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1130)
Caused by: java.lang.IllegalStateException: Not allowed to start service Intent { cmp=com.crazytrends.healthmanager/.WalkandStep.services.HardwareStepCounterService }: app is in background uid UidRecord{528e8bd u0a841 RCVR idle change:idle|uncached procs:1 seq(0,0,0)}
at android.app.ContextImpl.startServiceCommon(ContextImpl.java:1795)
at android.app.ContextImpl.startService(ContextImpl.java:1740)
at android.content.ContextWrapper.startService(ContextWrapper.java:738)
at android.content.ContextWrapper.startService(ContextWrapper.java:738)
at com.crazytrends.healthmanager.WalkandStep.receivers.HardwareStepCountReceiver.onReceive(HardwareStepCountReceiver.java:22)
at android.app.ActivityThread.handleReceiver(ActivityThread.java:4443)
How can I Fix it?

Trying to get balance with web3j (Android), geting nullpointer exception

Struggling getting anything to work in web3j on android, trying this example (I have replaced token and addr) the address I used does have some rinkeby ETH in it. Testing on phone, application crashes when I load up this class/activity, code is in the oncreate method. Have internet permission turned on in the manifest, and compile android web3j in the build gradle.
Web3j web3 = Web3jFactory.build(new
HttpService("https://rinkeby.infura.io/token"));
EthGetBalance ethGetBalance = null;
try {
ethGetBalance = web3
.ethGetBalance("addr",DefaultBlockParameterName.LATEST)
.sendAsync()
.get();
} catch (InterruptedException e) {
e.printStackTrace();
} catch (ExecutionException e) {
e.printStackTrace();
}
BigInteger wei = ethGetBalance.getBalance();
The error
06-30 02:15:47.115 18904-18904/? E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.test.user.test, PID: 18904
java.lang.RuntimeException: Unable to start activity ComponentInfo{com.test.user.test/com.test.user.test.balance}: java.lang.NullPointerException
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2548)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2607)
at android.app.ActivityThread.access$900(ActivityThread.java:174)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1325)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:146)
at android.app.ActivityThread.main(ActivityThread.java:5756)
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:1291)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1107)
at dalvik.system.NativeStart.main(Native Method)
Caused by: java.lang.NullPointerException
at com.test.user.test.balance.onCreate(balance.java:43)
at android.app.Activity.performCreate(Activity.java:5619)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1093)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2512)
Line 43 referenced in error is the last line of code in my submitted code. When I comment out that line app doesn't crash and just get a few (what I assume are all) warnings.

Your ethGetBalance return a null value .i think you put a invalid address. thats why method
web3j.ethGetBalance failes. try this with valid address.
Web3j web3 = Web3jFactory.build(new HttpService("https://ropsten.infura.io/your-token"));
String strAddress="0x24b********************"; //strAddress is your wallet address
EthGetBalance ethGetBalance=
web3.ethGetBalance(strAddress,DefaultBlockParameterName.LATEST).sendAsync().get();
BigInteger wei = ethGetBalance.getBalance();
ethGetBalance.getBalance() is used to get your ether balance in wei.
To get actual token in your wallet use this Conversion method.
java.math.BigDecimal tokenValue = Convert.fromWei(String.valueOf(wei), Convert.Unit.ETHER);
String strTokenAmount = String.valueOf(tokenValue);

ethGetBalance = web3.ethGetBalance(public_address, DefaultBlockParameterName.LATEST).sendAsync().get();
BigInteger wei = ethGetBalance.getBalance();
Log.e("ether balance", "wei" + wei);
This is working fine in my app which is available on playstore
https://play.google.com/store/apps/details?id=multi.erc20.devgenesis.token.wallet

The problem is that the ethGetBalance is null, when you want to access it, because the method web3j.ethGetBalance fails.
You are sending "addr" as an address, this is not a valid Ethereum address.
A valid Ethereum address has a format similar that begins with: 0x and then has 40 elements (digits 0-9 or letters A to F).
To see if your address exists, just try to find it in the website https://etherscan.io/
Try with a correct Ethereum address and it should work.
EthGetBalance ethGetBalance = web3j
.ethGetBalance(userAddress, DefaultBlockParameterName.LATEST)
.sendAsync()
.get();
BigInteger wei = ethGetBalance.getBalance();

Strange runtime exception on Android 4.4.4

I've got this strange stack trace from Flurry Analytics and I have no idea where it comes from. All the classes are from android system and not a single line that tells me where it comes from.
This error happened 3 times on a same device with android 4.4.4
Any ideas? Thanks.
java.lang.RuntimeException
android.app.ActivityThread.performResumeActivity(ActivityThread.java:2836)
android.app.ActivityThread.handleResumeActivity(ActivityThread.java:2865)
android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2291)
android.app.ActivityThread.access$800(ActivityThread.java:144)
android.app.ActivityThread$H.handleMessage(ActivityThread.java:1246)
android.os.Handler.dispatchMessage(Handler.java:102)
android.os.Looper.loop(Looper.java:212)
android.app.ActivityThread.main(ActivityThread.java:5135)
java.lang.reflect.Method.invokeNative(Native Method)
java.lang.reflect.Method.invoke(Method.java:515)
com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:877)
com.android.internal.os.ZygoteInit.main(ZygoteInit.java:693)
dalvik.system.NativeStart.main(Native Method)
Caused by: android.app.ActivityThread.deliverResults(ActivityThread.java:3455)
android.app.ActivityThread.performResumeActivity(ActivityThread.java:2823)
android.app.ActivityThread.handleResumeActivity(ActivityThread.java:2865)
android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2291)
android.app.ActivityThread.access$800(ActivityThread.java:144)
android.app.ActivityThread$H.handleMessage(ActivityThread.java:1246)
android.os.Handler.dispatchMessage(Handler.java:102)
android.os.Looper.loop(Looper.java:212)
android.app.ActivityThread.main(ActivityThread.java:5135)
java.lang.reflect.Method.invokeNative(Native Method)
java.lang.reflect.Method.invoke(Method.java:515)
com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:877)
com.android.internal.os.ZygoteInit.main(ZygoteInit.java:693)
dalvik.system.NativeStart.main(Native Method)

Part of the problem here seems to be that Flurry error reporting is leaving out important information.
Anyhow, this is where I think the exception is coming from:
private void deliverResults(ActivityClientRecord r, List<ResultInfo> results) {
final int N = results.size();
for (int i=0; i<N; i++) {
ResultInfo ri = results.get(i);
try {
if (ri.mData != null) {
ri.mData.setExtrasClassLoader(r.activity.getClassLoader());
}
if (DEBUG_RESULTS) Slog.v(TAG,
"Delivering result to activity " + r + " : " + ri);
r.activity.dispatchActivityResult(ri.mResultWho,
ri.mRequestCode, ri.mResultCode, ri.mData);
} catch (Exception e) {
if (!mInstrumentation.onException(r.activity, e)) {
throw new RuntimeException(
"Failure delivering result " + ri + " to activity "
+ r.intent.getComponent().toShortString()
+ ": " + e.toString(), e);
}
}
}
}
(This code isn't from Android 4.4.4, but this particular method is identical in the versions I looked at ...)
It would seem that deliverResults is catching some exception it got further up the stack, and wrapping / resthoring it as a RuntimeException. At the point that the exception is constructed, it has a message, and cause. Whatever is generating the stacktrace has removed that information, and that is going to make diagnosis hard.

Out of Memory on Samsung Galaxy devices

I've really tried my best, but I just can't find a fix for this Problem.
I wrote a Soundboard for Android devices, where every sound as well as its button images is loaded dynamically.
Here is the crucial paragraph in my code:
private void loadButtonColors(){
int rescount = AppConfig.BUTTONBACKGROUNDSRES(getApplicationContext()).size();
SharedPreferences prefs = getSharedPreferences("buttoncolors", 0);
String colors = null;
colors = prefs.getString("colors", null);
List<String> tempList = new ArrayList<String>();
if(colors != null){
tempList.addAll(Arrays.asList(TextUtils.split(colors, "~")));
}
if(colors == null || tempList.size() != MainActivity.SOUNDBUTTONS.size()){
for(#SuppressWarnings("unused") SoundButton s : MainActivity.SOUNDBUTTONS){
int randomint = new Random().nextInt(rescount);
Integer randominteger = Integer.valueOf(randomint);
String randomstring = String.valueOf(randominteger);
tempList.add(randomstring);
}
prefs.edit().putString("colors", TextUtils.join("~", tempList)).commit();
}
MainActivity.BUTTONCOLORS = (ArrayList<String>) tempList;
}
Later the button's images will be displayed with the images out of the following Arrays where the error seems to arise.
public static ArrayList<Drawable> BUTTONBACKGROUNDSRES(Context context){
ArrayList<Drawable> tempList = new ArrayList<Drawable>();
tempList.add(context.getResources().getDrawable(R.color.button_lblue));
tempList.add(context.getResources().getDrawable(R.color.button_lime));
tempList.add(context.getResources().getDrawable(R.color.button_orange));
tempList.add(context.getResources().getDrawable(R.color.button_pink));
tempList.add(context.getResources().getDrawable(R.color.button_red));
tempList.add(context.getResources().getDrawable(R.color.button_yellow));
return tempList;
};
The resulting error looks like this:
java.lang.OutOfMemoryError
at android.graphics.BitmapFactory.nativeDecodeAsset(Native Method)
at android.graphics.BitmapFactory.decodeStream(BitmapFactory.java:587)
at android.graphics.BitmapFactory.decodeResourceStream(BitmapFactory.java:422)
at android.graphics.drawable.Drawable.createFromResourceStream(Drawable.java:840)
at android.content.res.Resources.loadDrawable(Resources.java:2150)
at android.content.res.Resources.getDrawable(Resources.java:715)
at android.graphics.drawable.StateListDrawable.inflate(StateListDrawable.java:176)
at android.graphics.drawable.Drawable.createFromXmlInner(Drawable.java:937)
at android.graphics.drawable.Drawable.createFromXml(Drawable.java:877)
at android.content.res.Resources.loadDrawable(Resources.java:2132)
at android.content.res.Resources.getDrawable(Resources.java:715)
at com.centivo.inscope21soundboard.AppConfig.BUTTONBACKGROUNDSRES(AppConfig.java:45)
at com.centivo.inscope21soundboard.LauncherActivity.loadButtonColors(LauncherActivity.java:128)
at com.centivo.inscope21soundboard.LauncherActivity.access$1(LauncherActivity.java:127)
at com.centivo.inscope21soundboard.LauncherActivity$1.run(LauncherActivity.java:43)
at android.os.Handler.handleCallback(Handler.java:733)
at android.os.Handler.dispatchMessage(Handler.java:95)
at android.os.Looper.loop(Looper.java:136)
at android.app.ActivityThread.main(ActivityThread.java:5105)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:515)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:792)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:608)
at dalvik.system.NativeStart.main(Native Method)
If you wanna check out the App visit the Playstore
EDIT: The size of every button image is about 70kb.

If you are running out of memory, store the tempList in BUTTONBACKGROUNDSRES in a member or static variable. It looks like every time you call BUTTONBACKGROUNDSRES, you are going to load a new set of Drawables. If these are always the same, there is no sense in loading them frequently from scratch and then leaving the tempList to be garbage collected. Just create the list once, then refer it.

java + app engine + cloudSQL + spring/hibernate

I am using Spring Hibernate with app engine and cloudSQL for my project but i am getting one error frequently. This occurs when application becomes ideal for sometimes.
For every query (fetching or save/update to database), i open session and close session after its use. like this --
My code for database fetching is
try{
Session session = getSessionFactory().openSession();
if(session != null)
{
List<Account> accounts = session.createQuery("from " + this.clazz.getName() + " where subDomainName = '"+subDomain+"'").list();
session.close();
if(accounts != null)
{
if(accounts.size()>0){
return accounts.get(0);
}
else{
return null;
}
}
else
{
return null;
}
}
else {
return null;
}
}
catch(Exception e){
log.info("Error in retriving subdomain details :: in Account Dao");
return null;
}
I am using Autowired structuring. but when application becomes ideal for sometime and after some time when i refresh page its display the error as Stream Closed of CloudSQL on app engine, error is shown below...
Error is :
6 Jan, 2014 6:21:04 AM com.google.appengine.repackaged.org.apache.http.impl.client.DefaultRequestDirector handleResponse
WARNING: Authentication error: Unable to respond to any of these challenges: {bearer=WWW-Authenticate: Bearer realm="https://www.google.com/accounts/AuthSubRequest", error=invalid_token}
6 Jan, 2014 6:21:04 AM com.google.appengine.api.rdbms.dev.LocalRdbmsServiceRemoteDriver openConnection
WARNING: openConnection
java.sql.SQLException: Stream closed
at com.google.cloud.sql.jdbc.internal.googleapi.RpcGoogleApi.newOpenConnectionIOException(RpcGoogleApi.java:187)
at com.google.cloud.sql.jdbc.internal.googleapi.RpcGoogleApi.openConnection(RpcGoogleApi.java:105)
at com.google.appengine.api.rdbms.dev.LocalRdbmsServiceRemoteDriver.openConnection(LocalRdbmsServiceRemoteDriver.java:206)
at com.google.appengine.api.rdbms.dev.LocalRdbmsService.openConnection(LocalRdbmsService.java:119)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at com.google.appengine.tools.development.ApiProxyLocalImpl$AsyncApiCall.callInternal(ApiProxyLocalImpl.java:498)
at com.google.appengine.tools.development.ApiProxyLocalImpl$AsyncApiCall.call(ApiProxyLocalImpl.java:452)
at com.google.appengine.tools.development.ApiProxyLocalImpl$AsyncApiCall.call(ApiProxyLocalImpl.java:430)
at java.util.concurrent.Executors$PrivilegedCallable$1.run(Executors.java:461)
at java.security.AccessController.doPrivileged(Native Method)
at java.util.concurrent.Executors$PrivilegedCallable.call(Executors.java:458)
at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
at java.util.concurrent.FutureTask.run(FutureTask.java:138)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:895)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:918)
at java.lang.Thread.run(Thread.java:662)
Caused by: java.io.IOException: Stream closed
at java.util.zip.GZIPInputStream.ensureOpen(GZIPInputStream.java:42)
at java.util.zip.GZIPInputStream.read(GZIPInputStream.java:85)
For this to engage app engine and cloudSQL i have wriiten cron job of certains request but this is not feasible solution, i can not gets why cloudSQL closes its stream for app engine.