Android pjsip使用

以下是Android中使用pjsip的步骤：

1.下载pjsip库并解压缩。

2.在Android Studio中创建一个新项目。

3.将pjsip库中的pjlib、pjlib-util、pjnath、pjmedia、pjsip文件夹复制到您的项目的jni文件夹中。

4.在jni文件夹中创建一个Android.mk文件，内容如下：

LOCAL_PATH := $(call my-dir)

include $(CLEAR_VARS)

# pjlib
PJLIB_VER := 2.7.2
PJLIB_PATH := $(LOCAL_PATH)/pjlib-$(PJLIB_VER)

# pjlib-util
PJLIB_UTIL_VER := 2.7.2
PJLIB_UTIL_PATH := $(LOCAL_PATH)/pjlib-util-$(PJLIB_UTIL_VER)

# pjnath
PJNATH_VER := 2.7.2
PJNATH_PATH := $(LOCAL_PATH)/pjnath-$(PJNATH_VER)

# pjmedia
PJMEDIA_VER := 2.7.2
PJMEDIA_PATH := $(LOCAL_PATH)/pjmedia-$(PJMEDIA_VER)

# pjsip
PJSIP_VER := 2.7.2
PJSIP_PATH := $(LOCAL_PATH)/pjsip-$(PJSIP_VER)

include $(PJLIB_PATH)/build.mak
include $(PJLIB_UTIL_PATH)/build.mak
include $(PJNATH_PATH)/build.mak
include $(PJMEDIA_PATH)/build.mak
include $(PJSIP_PATH)/build.mak

include $(CLEAR_VARS)

LOCAL_MODULE    := pjsua2
LOCAL_SRC_FILES := pjsua2.cpp

LOCAL_C_INCLUDES := \
    $(PJLIB_PATH)/include \
    $(PJLIB_UTIL_PATH)/include \
    $(PJNATH_PATH)/include \
    $(PJMEDIA_PATH)/include \
    $(PJSIP_PATH)/include

LOCAL_SHARED_LIBRARIES := \
    libpjmedia-codec \
    libpjmedia-videodev \
    libpjmedia \
    libpjsua2 \
    libpjsip-ua \
    libpjsip-simple \
    libpjsip \
    libpjnath \
    libpjlib-util \
    libpj \
    libstdc++

include $(BUILD_SHARED_LIBRARY)

5.在jni文件夹中创建一个Application.mk文件，内容如下：

APP_ABI := all
APP_PLATFORM := android-21
APP_STL := gnustl_static

6.在项目的build.gradle文件中添加以下代码：

android {
    ...
    defaultConfig {
        ...
        ndk {
            moduleName "pjsua2"
        }
    }
    ...
    sourceSets.main {
        jni.srcDirs = []
        jniLibs.srcDir 'src/main/libs'
    }
}

7.在项目的AndroidManifest.xml文件中添加以下代码：

<uses-permission android:name="android.permission.USE_SIP" />
<uses-feature android:name="android.hardware.sip.voip" />

8.在您的项目中创建一个Java类，例如MyPjsip.java，以实现pjsip的功能。

public class MyPjsip {
    static {
        System.loadLibrary("pjsua2");
    }

    public native void init();
    public native void makeCall(String uri);
    public native void hangupCall();
    public native void answerCall();
}

9.在您的项目中使用MyPjsip类来实现pjsip的功能。

MyPjsip pjsip = new MyPjsip();
pjsip.init();
pjsip.makeCall("sip:1234567890@192.168.1.100");
pjsip.hangupCall();
pjsip.answerCall();