public static IntPtr GetObjectField(IntPtr jobject, IntPtr jfieldID); 參數 jobject IntPtr jfieldID IntPtr 傳回 IntPtr 備註 此頁面的部分是根據 Android 開放原始碼專案所建立和共用的工作進行修改,並根據 Creative Commons 2.5 屬性授權中所述的詞彙使用。 適用於 產品版本 .NET for Android .NET for...
JNIEnv.GetObjectField(IntPtr, IntPtr) Method Reference Feedback Definition Namespace: Android.Runtime Assembly: Mono.Android.dll C# 複製 public static IntPtr GetObjectField (IntPtr jobject, IntPtr jfieldID); Parameters jobject IntPtr jfieldID IntPtr Returns IntPtr Remarks Portions of ...
保存 添加到集合 添加到计划 通过 Facebookx.com 共享LinkedIn电子邮件 打印 参考 定义 命名空间: Android.Runtime 程序集: Mono.Android.dll C# publicstaticIntPtrGetObjectField(IntPtr jobject, IntPtr jfieldID); 参数 jobject IntPtr jfieldID IntPtr ...
publicstaticIntPtrGetObjectField(IntPtr jobject, IntPtr jfieldID); Parameters jobject IntPtr jfieldID IntPtr Returns IntPtr Remarks Portions of this page are modifications based on work created and shared by theAndroid Open Source Projectand used according to terms described in theCreative Commons 2.5...
jobject father = env->GetObjectField(obj,id_father); //获取father对象的class对象 jclass clazz_father = env->FindClass("com/jni/demo/Father"); //获取father对象中的function方法的id jmethodID id_father_function = env->GetMethodID(clazz_father,"function","()V"); ...
jobject father = env->GetObjectField(obj,id_father); //获取father对象的class对象 jclass clazz_father = env->FindClass("com/jni/demo/Father"); //获取father对象中的function方法的id jmethodID id_father_function = env->GetMethodID(clazz_father,"function","()V"); ...
{//获取obj中对象的class对象jclass clazz = env->GetObjectClass(obj);//获取Java中的father字段的id(最后一个参数是father字段的签名)jfieldID id_father = env->GetFieldID(clazz,"father","Lcom/jni/demo/Father;");//获取father字段的对象类型jobject father = env->GetObjectField(obj,id_father);//获取...
frameworks/base/media/jni/android_media_MediaRecorder.cpp 在注释1处调用了JNIEnv的GetObjectField函数,参数中的fields.surface用来保存Java层MediaRecorde中的成员变量mSurface,mSurface的类型为Surface,这样通过GetObjectField函数就得到了mSurface在JNI层中对应的jobject类型变量surface 。
env->GetObjectField(jobj, jfieldId) 2.Java调用C函数 在Java中声明Native方法(即需要调用的本地方法) 编译上述 Java源文件javac(得到 .class文件) 3。 通过 javah 命令导出JNI的头文件(.h文件) 使用Java需要交互的本地代码 实现在 Java中声明的Native方法 ...
sig 属性的签名jfieldID j_fid=(*env)->GetFieldID(env,j_clz,"name","Ljava/lang/String;");// 1.获取 name 属性的值jstring j_str=(*env)->GetObjectField(env,jobj,j_fid);// 打印字符串 jstring -> c_strchar*c_str=(*env)->GetStringUTFChars(env,j_str,NULL);printf("name is %s",c_...