AndroidJNI

Android JNI example code for my blog https://saurabhsharma123k.blogspot.com I am going to add all JNI related uses in Android (Application or System programming)

• Application(java/Upper layer) to lower layer(c++/native) communication
• Native Layer to Upper Layer communication
• System App call to lower level call
• Android Framework to Lower level call
• All code are in java/c++
• Detail explanation on my blog( I will publish it time to time)

1. Android JNI Example 1

In this example :

• Received String from Native layer to Upper layer (App)
• Send String from Application to native layer
• Received String Array from Native to Upper layer
• More detail check My Blog

Below is application screenshot

2. Android JNI Example 2

In this example :

• Call and set value for POJO or Getter/setter class in Native(jni/c++)
• Call and set value for below Java Static and instance Method in Native(jni/c++) :
  • Boolean
  • Int
  • Float
  • Array
  • String
• Access and set following Static and Instance variable value in Native(jni/c++):
  • Int
  • String
  • float
• More detail check My Blog

Below is application screenshot

3. Android JNI Example 3 : Handling Exception

In this example :

• Handle Java/App exception from native(jni)
• Catch java/App exception in native and return back it to App
• Example of Fatal exception in native

Below is application screenshot