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2014/10/16 ¤W¤È 08:17:07
android Programming Glossary: jvmHow can I catch SIGSEGV (segmentation fault) and get a stack trace under JNI on Android? http://stackoverflow.com/questions/1083154/how-can-i-catch-sigsegv-segmentation-fault-and-get-a-stack-trace-under-jni-on possibly some attempt by the OS to restart it. Edit The JVM Dalvik VM catches the signal and logs a stack trace and other..
Android App Crashes Suddenly while running? http://stackoverflow.com/questions/11190469/android-app-crashes-suddenly-while-running statement The fact that no error is reported by the JVM also indicates it caused by your native code. Was one of the.. my native code. The fact that no error is reported by the JVM also indicates it caused by your native code. This question..
Android - Tabs, MapView, activities within tabs http://stackoverflow.com/questions/1590340/android-tabs-mapview-activities-within-tabs . The simplest way to do that without introducing a hard JVM coupling between the activities is to broadcast an Intent and..
Android static object lifecycle (Application act crazy) http://stackoverflow.com/questions/1944369/android-static-object-lifecycle-application-act-crazy comes into existence when a class is loaded by the JVM and dies when the class is unloaded. So if you create an android.. and initialize a static variable it will remain in the JVM until one of the following happens 1. the class is unloaded.. of the following happens 1. the class is unloaded 2. the JVM shuts down 3. the process dies Note that the value of the static..
Alternatives to Java for Android development? [closed] http://stackoverflow.com/questions/2419556/alternatives-to-java-for-android-development to run. I've done some investigation as to how other JVM languages work and it appears Dalvik messes them up pretty hard...
Using static variables in Android http://stackoverflow.com/questions/2475978/using-static-variables-in-android Also when does this get cleaned up by the Android JVM Thank you. java android dalvik share improve this question..
Adding a library/JAR to an Eclipse Android project http://stackoverflow.com/questions/3642928/adding-a-library-jar-to-an-eclipse-android-project This will not work however for Android whose Dalvik JVM cannot handle an ordinary Java compiled class but must have..
What happens to JavaScript code after app is compiled using Titanium Mobile http://stackoverflow.com/questions/4217551/what-happens-to-javascript-code-after-app-is-compiled-using-titanium-mobile I assumed that on Android javascript is being compiled for JVM. Why can't these be found in app.apk javascript iphone android..
ByteBuffer not releasing memory http://stackoverflow.com/questions/5060307/bytebuffer-not-releasing-memory memory is not released. Also keep in mind this bug in the JVM not sure how it applies to Dalvik though where heavy allocation..
Static references are cleared--does Android unload classes at runtime if unused? http://stackoverflow.com/questions/5105097/static-references-are-cleared-does-android-unload-classes-at-runtime-if-unused I can tell Android behaves different here from an ordinary JVM. The problem is this We're currently trying to cut down on singleton.. common way of implementing singletons wouldn't work on any JVM right Any idea why this is happening exactly PS one can work..
SoftReference gets garbage collected too early http://stackoverflow.com/questions/5757969/softreference-gets-garbage-collected-too-early this question SoftReference are the poor mans Cache. The JVM can hold those reference alive longer but doesn't have to. As.. have to. As soon as there's no hard reference anymore the JVM can garbage collect a the soft referenced Object. The behavior.. collect a the soft referenced Object. The behavior of the JVM you're experiencing is correct since the JVM doesn't have to..
How to make apk Secure. Protecting from Decompile http://stackoverflow.com/questions/6235290/how-to-make-apk-secure-protecting-from-decompile these classes first then loading these classes into JVM. These classes can be decrypted by hardware or software. Developers.. decrypt them. And finally loading the decrypted classes to JVM. Customed ClassLoader is a very important class in this protect..
Failed to import new Gradle project: Could not fetch model of type 'IdeaProject' [duplicate] http://stackoverflow.com/questions/16659381/failed-to-import-new-gradle-project-could-not-fetch-model-of-type-ideaproject configuration of the daemon. For example an unrecognized jvm option is used. Please refer to the user guide chapter on the..
What can you not do on the Dalvik VM (Android's VM) that you can in Sun VM? http://stackoverflow.com/questions/230193/what-can-you-not-do-on-the-dalvik-vm-androids-vm-that-you-can-in-sun-vm Scala Jython etc... not work as expected java android jvm dalvik share improve this question There is a number of.. step though I dunno if anyone tried . As to other jvm languages anything that in the end compiles to standard bytecode..
Alternatives to Java for Android development? [closed] http://stackoverflow.com/questions/2419556/alternatives-to-java-for-android-development Thanks hope you well ^_^ android programming languages jvm share improve this question Have you checked out the Android..
Can I program for android using any JVM language? http://stackoverflow.com/questions/3002566/can-i-program-for-android-using-any-jvm-language if there'd been any change since then. android clojure jvm jruby jython share improve this question Check out these..
http://stackoverflow.com/questions/3023226/android-2-2-wifi-hotspot-api and Portable Hotspot settings item . java android wifi jvm hotspot share improve this question You can call private..
Android application Wi-Fi device - AP connectivity http://stackoverflow.com/questions/5233068/android-application-wi-fi-device-ap-connectivity an access point java android network programming wifi jvm hotspot share improve this question You could read the proc..
http://stackoverflow.com/questions/7637144/android-requires-compiler-compliance-level-5-0-or-6-0-found-1-7-instead-plea delete all @Override above functions. I have Windows 7 x64 jvm7 x64. Does anyone have clue what is wrong I done Android Tools.. Tools Fix Project Properties but didn t help java android jvm share improve this question That isn't the problem Jack... problem Jack. Android SDK isn't x64 but works ok with x64 jvm and x64 eclipse IDE . As helios said you must set project compatibility..
JAVAH can't find class( android ndk) http://stackoverflow.com/questions/9985336/javah-cant-find-class-android-ndk not found. Search Path usr lib jvm java 6 openjdk jre lib resources.jar usr lib jvm java 6 openjdk.. usr lib jvm java 6 openjdk jre lib resources.jar usr lib jvm java 6 openjdk jre lib rt.jar usr lib jvm java 6 openjdk jre.. usr lib jvm java 6 openjdk jre lib rt.jar usr lib jvm java 6 openjdk jre lib sunrsasign.jar usr lib jvm java 6 openjdk..
How can I catch SIGSEGV (segmentation fault) and get a stack trace under JNI on Android? http://stackoverflow.com/questions/1083154/how-can-i-catch-sigsegv-segmentation-fault-and-get-a-stack-trace-under-jni-on happens the immediate unceremonious death of the process and possibly some attempt by the OS to restart it. Edit The JVM Dalvik VM catches the signal and logs a stack trace and other useful information I just want to offer the user the option..
Android App Crashes Suddenly while running? http://stackoverflow.com/questions/11190469/android-app-crashes-suddenly-while-running positive so far.. The problem was inside JNI I guess . @n.Collins statement The fact that no error is reported by the JVM also indicates it caused by your native code. Was one of the most correct pointers towards the solution. I really thank.. I was trying to access index n 1 in an array of n objects in my native code. The fact that no error is reported by the JVM also indicates it caused by your native code. This question c Jni Reference Table overflow has a very similar error log..
Android - Tabs, MapView, activities within tabs http://stackoverflow.com/questions/1590340/android-tabs-mapview-activities-within-tabs show a particular location then the Show activity can finish . The simplest way to do that without introducing a hard JVM coupling between the activities is to broadcast an Intent and register a BroadcastReceiver in the main activity. Upon receipt..
Android static object lifecycle (Application act crazy) http://stackoverflow.com/questions/1944369/android-static-object-lifecycle-application-act-crazy lifecycle GC etc. Lifetime of a static variable A static variable comes into existence when a class is loaded by the JVM and dies when the class is unloaded. So if you create an android application and initialize a static variable it will remain.. the class is unloaded. So if you create an android application and initialize a static variable it will remain in the JVM until one of the following happens 1. the class is unloaded 2. the JVM shuts down 3. the process dies Note that the value.. a static variable it will remain in the JVM until one of the following happens 1. the class is unloaded 2. the JVM shuts down 3. the process dies Note that the value of the static variable will persist when you switch to a different activity..
Alternatives to Java for Android development? [closed] http://stackoverflow.com/questions/2419556/alternatives-to-java-for-android-development what success the community has had getting other languages to run. I've done some investigation as to how other JVM languages work and it appears Dalvik messes them up pretty hard. Clojure seems unable to run Scala seems to be one of the..
Using static variables in Android http://stackoverflow.com/questions/2475978/using-static-variables-in-android if the_instance null the_instance new A return the_instance Also when does this get cleaned up by the Android JVM Thank you. java android dalvik share improve this question static fields are attached to the Class instance as a whole..
Adding a library/JAR to an Eclipse Android project http://stackoverflow.com/questions/3642928/adding-a-library-jar-to-an-eclipse-android-project library the one I use is the most elegant in my humble opinion. This will not work however for Android whose Dalvik JVM cannot handle an ordinary Java compiled class but must have it converted to a special format. This does not happen when..
What happens to JavaScript code after app is compiled using Titanium Mobile http://stackoverflow.com/questions/4217551/what-happens-to-javascript-code-after-app-is-compiled-using-titanium-mobile corresponding to each of the javascript files. Therefore I assumed that on Android javascript is being compiled for JVM. Why can't these be found in app.apk javascript iphone android objective c titanium share improve this question Titanium..
ByteBuffer not releasing memory http://stackoverflow.com/questions/5060307/bytebuffer-not-releasing-memory are not collected yet their finalizer is not run and native memory is not released. Also keep in mind this bug in the JVM not sure how it applies to Dalvik though where heavy allocation of direct buffers leads to unrecoverable OutOfMemoryError..
Static references are cleared--does Android unload classes at runtime if unused? http://stackoverflow.com/questions/5105097/static-references-are-cleared-does-android-unload-classes-at-runtime-if-unused have stumbled upon this issue a few times now and as far as I can tell Android behaves different here from an ordinary JVM. The problem is this We're currently trying to cut down on singleton classes in the app in favor of a single root factory.. model but I suppose that shouldn't happen otherwise this common way of implementing singletons wouldn't work on any JVM right Any idea why this is happening exactly PS one can work around this by keeping global references on the single application..
SoftReference gets garbage collected too early http://stackoverflow.com/questions/5757969/softreference-gets-garbage-collected-too-early android garbage collection soft references share improve this question SoftReference are the poor mans Cache. The JVM can hold those reference alive longer but doesn't have to. As soon as there's no hard reference anymore the JVM can garbage.. The JVM can hold those reference alive longer but doesn't have to. As soon as there's no hard reference anymore the JVM can garbage collect a the soft referenced Object. The behavior of the JVM you're experiencing is correct since the JVM doesn't.. as there's no hard reference anymore the JVM can garbage collect a the soft referenced Object. The behavior of the JVM you're experiencing is correct since the JVM doesn't have to hold such object longer around. Of course most JVMs try to..
How to make apk Secure. Protecting from Decompile http://stackoverflow.com/questions/6235290/how-to-make-apk-secure-protecting-from-decompile Before using these encrypted classes the program needs to decrypt these classes first then loading these classes into JVM. These classes can be decrypted by hardware or software. Developers often loading cryptographic classes through a customed.. ClassLoader will find cryptographic classes first then decrypt them. And finally loading the decrypted classes to JVM. Customed ClassLoader is a very important class in this protect method. Because it itself is not encrypted it may be the..
Failed to import new Gradle project: Could not fetch model of type 'IdeaProject' [duplicate] http://stackoverflow.com/questions/16659381/failed-to-import-new-gradle-project-could-not-fetch-model-of-type-ideaproject the daemon process. This problem might be caused by incorrect configuration of the daemon. For example an unrecognized jvm option is used. Please refer to the user guide chapter on the daemon at http gradle.org docs 1.6 userguide gradle_daemon.html..
What can you not do on the Dalvik VM (Android's VM) that you can in Sun VM? http://stackoverflow.com/questions/230193/what-can-you-not-do-on-the-dalvik-vm-androids-vm-that-you-can-in-sun-vm having trouble Any languages that compile to Java bytecode Scala Jython etc... not work as expected java android jvm dalvik share improve this question There is a number of things that Dalvik will not handle or will not handle quite.. should work as it uses bytecode instrumentation as a compilation step though I dunno if anyone tried . As to other jvm languages anything that in the end compiles to standard bytecode and does not use bytecode instrumentation at runtime can..
Alternatives to Java for Android development? [closed] http://stackoverflow.com/questions/2419556/alternatives-to-java-for-android-development snags in developing apps non Java once you get them to run Thanks hope you well ^_^ android programming languages jvm share improve this question Have you checked out the Android NDK It allows you to develop high performance Android Apps..
Can I program for android using any JVM language? http://stackoverflow.com/questions/3002566/can-i-program-for-android-using-any-jvm-language was a similar question asked over a year ago but I wasn't sure if there'd been any change since then. android clojure jvm jruby jython share improve this question Check out these links Scala 2.8 on Android Android examples in Scala Clojure..
http://stackoverflow.com/questions/3023226/android-2-2-wifi-hotspot-api 2.2 Froyo to create a Wifi hotspot as seen in the Tethering and Portable Hotspot settings item . java android wifi jvm hotspot share improve this question You can call private boolean setWifiApEnabled WifiConfiguration wifiConfig boolean..
Android application Wi-Fi device - AP connectivity http://stackoverflow.com/questions/5233068/android-application-wi-fi-device-ap-connectivity API does not contain setWifiApEnabled method to configure an access point java android network programming wifi jvm hotspot share improve this question You could read the proc net arp file to read all the ARP entries. See the example..
http://stackoverflow.com/questions/7637144/android-requires-compiler-compliance-level-5-0-or-6-0-found-1-7-instead-plea use Android Tools Fix Project Properties. I got errors to delete all @Override above functions. I have Windows 7 x64 jvm7 x64. Does anyone have clue what is wrong I done Android Tools Fix Project Properties but didn t help java android jvm.. x64. Does anyone have clue what is wrong I done Android Tools Fix Project Properties but didn t help java android jvm share improve this question That isn't the problem Jack. Android SDK isn't x64 but works ok with x64 jvm and x64 eclipse.. android jvm share improve this question That isn't the problem Jack. Android SDK isn't x64 but works ok with x64 jvm and x64 eclipse IDE . As helios said you must set project compatibility to Java 5.0 or Java 6.0. To do that 2 options right..
JAVAH can't find class( android ndk) http://stackoverflow.com/questions/9985336/javah-cant-find-class-android-ndk not found javadoc error Class bt.nativeclient.BtnativeActivity not found. Search Path usr lib jvm java 6 openjdk jre lib resources.jar usr lib jvm java 6 openjdk jre lib rt.jar usr lib jvm java 6 openjdk jre lib sunrsasign.jar.. Class bt.nativeclient.BtnativeActivity not found. Search Path usr lib jvm java 6 openjdk jre lib resources.jar usr lib jvm java 6 openjdk jre lib rt.jar usr lib jvm java 6 openjdk jre lib sunrsasign.jar usr lib jvm java 6 openjdk jre lib jsse.jar.. found. Search Path usr lib jvm java 6 openjdk jre lib resources.jar usr lib jvm java 6 openjdk jre lib rt.jar usr lib jvm java 6 openjdk jre lib sunrsasign.jar usr lib jvm java 6 openjdk jre lib jsse.jar usr lib jvm java 6 openjdk jre lib jce.jar..
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