2014/10/16 上午 08:17:05

android Programming Glossary: jstring

http://stackoverflow.com/questions/10285242/openssl-using-androids-ndk-problems

I call that has the proper JNI sintax which translates jstring to char and all other needed transformations and makes a call..

Android : How to change Playback Rate of music using OpenSL ES

http://stackoverflow.com/questions/11094377/android-how-to-change-playback-rate-of-music-using-opensl-es

JNIEnv env jclass clazz jstring uri SLresult result convert Java string to UTF 8 const jbyte..

Rotating a bitmap using JNI & NDK

http://stackoverflow.com/questions/14398670/rotating-a-bitmap-using-jni-ndk

IILandroid graphics Bitmap Config Landroid graphics Bitmap jstring configName env NewStringUTF ARGB_8888 jclass bitmapConfigClass..

How to cache bitmaps into native memory

http://stackoverflow.com/questions/17900732/how-to-cache-bitmaps-into-native-memory

IILandroid graphics Bitmap Config Landroid graphics Bitmap jstring configName env NewStringUTF ARGB_8888 jclass bitmapConfigClass..

JNI bitmap operations , for helping to avoid OOM when using large images [closed]

http://stackoverflow.com/questions/18250951/jni-bitmap-operations-for-helping-to-avoid-oom-when-using-large-images

IILandroid graphics Bitmap Config Landroid graphics Bitmap jstring configName env NewStringUTF ARGB_8888 jclass bitmapConfigClass..

jni converting jstring to char *

http://stackoverflow.com/questions/4181934/jni-converting-jstring-to-char

converting jstring to char I have passed a url String from java to C code as jstring.. to char I have passed a url String from java to C code as jstring data type. And my library method needs a char as url. How can.. my library method needs a char as url. How can I convert jstring in char p.s. Is there any advantage of using jcharArray in C..

Calling a java method from c++ in Android

http://stackoverflow.com/questions/5198105/calling-a-java-method-from-c-in-android

#include string.h #include stdio.h #include jni.h jstring Java_the_package_MainActivity_getJniString JNIEnv env jobject.. JNI_CreateJavaVM vm void env vm_args Construct a String jstring jstr env NewStringUTF This string comes from JNI First get the.. Get a C style string const char str env GetStringUTFChars jstring result NULL printf s n str Clean up env ReleaseStringUTFChars..

How to decode audio via FFmpeg in Android

http://stackoverflow.com/questions/5367595/how-to-decode-audio-via-ffmpeg-in-android

JNIEnv env jobject obj int argc jstring argv jbyteArray array AVFormatContext pFormatCtx int i videoStream.. Java_com_ffmpeg_Main_jniMainEntry JNIEnv env jobject obj jstring input const char pszFileName env GetStringUTFChars env input..

Android std and stl support

http://stackoverflow.com/questions/7339229/android-std-and-stl-support

file #include string.h #include jni.h extern C JNIEXPORT jstring JNICALL Java_org_android_helloworld_HelloworldActivity_invokeNativeFunction.. JNIEnv env jobject javaThis jstring Java_org_android_helloworld_HelloworldActivity_invokeNativeFunction..

GSON throwing “Expected BEGIN_OBJECT but was BEGIN_ARRAY”?

http://stackoverflow.com/questions/9598707/gson-throwing-expected-begin-object-but-was-begin-array

lcs List channelSearchEnum new Gson .fromJson jstring channelSearchEnum.class Here's an object class I'm using. import.. parser new JsonParser JsonArray Jarray parser.parse jstring .getAsJsonArray ArrayList channelSearchEnum lcs new ArrayList..

openSSL using Android's NDK problems

http://stackoverflow.com/questions/10285242/openssl-using-androids-ndk-problems

String password int passSize next I have a c file which I call that has the proper JNI sintax which translates jstring to char and all other needed transformations and makes a call to another cpp file which actually imports openssl headers..

Android : How to change Playback Rate of music using OpenSL ES

http://stackoverflow.com/questions/11094377/android-how-to-change-playback-rate-of-music-using-opensl-es

player JNIEXPORT jboolean Java_com_swssm_waveloop_audio_OSLESMediaPlayer_createAudioPlayer JNIEnv env jclass clazz jstring uri SLresult result convert Java string to UTF 8 const jbyte utf8 env GetStringUTFChars env uri NULL assert NULL utf8 configure..

Rotating a bitmap using JNI & NDK

http://stackoverflow.com/questions/14398670/rotating-a-bitmap-using-jni-ndk

env GetStaticMethodID bitmapCls createBitmap IILandroid graphics Bitmap Config Landroid graphics Bitmap jstring configName env NewStringUTF ARGB_8888 jclass bitmapConfigClass env FindClass android graphics Bitmap Config jmethodID valueOfBitmapConfigFunction..

How to cache bitmaps into native memory

http://stackoverflow.com/questions/17900732/how-to-cache-bitmaps-into-native-memory

JNI bitmap operations , for helping to avoid OOM when using large images [closed]

http://stackoverflow.com/questions/18250951/jni-bitmap-operations-for-helping-to-avoid-oom-when-using-large-images

jni converting jstring to char *

http://stackoverflow.com/questions/4181934/jni-converting-jstring-to-char

converting jstring to char I have passed a url String from java to C code as jstring data type. And my library method needs a char as url... converting jstring to char I have passed a url String from java to C code as jstring data type. And my library method needs a char as url. How can I convert jstring in char p.s. Is there any advantage of using.. a url String from java to C code as jstring data type. And my library method needs a char as url. How can I convert jstring in char p.s. Is there any advantage of using jcharArray in C i.e. Passing char instead of string in native method Thanks..

Calling a java method from c++ in Android

http://stackoverflow.com/questions/5198105/calling-a-java-method-from-c-in-android

process of getJniString method call from java to native. native.cpp #include string.h #include stdio.h #include jni.h jstring Java_the_package_MainActivity_getJniString JNIEnv env jobject obj jint depth JavaVM vm JNIEnv env JavaVMInitArgs vm_args.. 0 vm_args.ignoreUnrecognized 1 Construct a VM jint res JNI_CreateJavaVM vm void env vm_args Construct a String jstring jstr env NewStringUTF This string comes from JNI First get the class that contains the method you need to call jclass clazz.. object jobject result env CallObjectMethod jstr messageMe Get a C style string const char str env GetStringUTFChars jstring result NULL printf s n str Clean up env ReleaseStringUTFChars jstr str Shutdown the VM. vm DestroyJavaVM return env NewStringUTF..

How to decode audio via FFmpeg in Android

http://stackoverflow.com/questions/5367595/how-to-decode-audio-via-ffmpeg-in-android

solved EDIT2 My new code JNIEXPORT jint JNICALL Java_org_libsdl_app_SDLActivity_main JNIEnv env jobject obj int argc jstring argv jbyteArray array AVFormatContext pFormatCtx int i videoStream audioStream AVCodecContext pCodecCtx AVCodec pCodec AVFrame.. is full it will automatically play. JNIEXPORT int JNICALL Java_com_ffmpeg_Main_jniMainEntry JNIEnv env jobject obj jstring input const char pszFileName env GetStringUTFChars env input 0 AVFormatContext m_fc int err AVPacket pkt char pAudioBuffer..

Android std and stl support

http://stackoverflow.com/questions/7339229/android-std-and-stl-support

jni sample on my phone. It is working. The code is is a .cpp file #include string.h #include jni.h extern C JNIEXPORT jstring JNICALL Java_org_android_helloworld_HelloworldActivity_invokeNativeFunction JNIEnv env jobject javaThis jstring Java_org_android_helloworld_HelloworldActivity_invokeNativeFunction.. jstring JNICALL Java_org_android_helloworld_HelloworldActivity_invokeNativeFunction JNIEnv env jobject javaThis jstring Java_org_android_helloworld_HelloworldActivity_invokeNativeFunction JNIEnv env jobject javaThis return env NewStringUTF..

GSON throwing “Expected BEGIN_OBJECT but was BEGIN_ARRAY”?

http://stackoverflow.com/questions/9598707/gson-throwing-expected-begin-object-but-was-begin-array

03 02 23 28 57.928001 into a list of objects. List channelSearchEnum lcs List channelSearchEnum new Gson .fromJson jstring channelSearchEnum.class Here's an object class I'm using. import com.google.gson.annotations.SerializedName public class.. replys. Got it working that way. Gson gson new Gson JsonParser parser new JsonParser JsonArray Jarray parser.parse jstring .getAsJsonArray ArrayList channelSearchEnum lcs new ArrayList channelSearchEnum for JsonElement obj Jarray channelSearchEnum..