2014/10/16 上午 08:11:02

android Programming Glossary: callvoidmethod

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

clazz jclass cls env GetObjectClass thiz if cls NULL jmethodID mid env GetMethodID cls OnCompletion V if mid NULL env CallVoidMethod thiz mid 1234 void playStatusCallback SLPlayItf play void context SLuint32 event LOGD playStatusCallback create URI audio..

Rotating a bitmap using JNI & NDK

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

recycleFunction env GetMethodID bitmapCls recycle V if recycleFunction 0 LOGE error recycling return NULL env CallVoidMethod bitmap recycleFunction creating a new bitmap to put the pixels into it using Bitmap Bitmap.createBitmap int width int height..

Calling a java method from c++ in Android

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

were doing was the equivalent of jstr.messageMe . Edit I just realized since your is a void method you should call env CallVoidMethod obj messageMe jstr If you want to return a result you need to change your JNI signature the V means a method of void return..

Decoding audio via Android using FFMpeg

http://stackoverflow.com/questions/6228008/decoding-audio-via-android-using-ffmpeg

RAH 2 env ReleaseByteArrayElements env array bytes 0 __android_log_print ANDROID_LOG_DEBUG DEBUG_TAG RAH 3 env CallVoidMethod env obj play array len __android_log_print ANDROID_LOG_DEBUG DEBUG_TAG RAH 4 size len decoded len av_free_packet.. GetByteArrayElements env array NULL memcpy bytes outbuf out_size env ReleaseByteArrayElements env array bytes 0 env CallVoidMethod env obj play array out_size avpkt.size len avpkt.data len if avpkt.size AUDIO_REFILL_THRESH Refill the input buffer to..

Issues with SHA1 hash implementation in Android

http://stackoverflow.com/questions/6350657/issues-with-sha1-hash-implementation-in-android

long Signature J V ... If the method is found the variable is not equal 0. Calling the method is very easy callEnv CallVoidMethod callObj midSet size The first argument is the given jobject from the main method and I think the others are clear. Remember..