Description:
call
call #
You can use the package to open the dylib defined in the assets field of pubsepc.yaml.
1.Prepare your dynamic link library #
Write your C-code
// file: ${PROJECT_ROOT}/assets/main.c
int add(int a, int b) {
return a + b;
}
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Compile it to a dylib
gcc -shared -fPIC -o libadd.so main.c # Linux
gcc -shared -fPIC -o libadd.dll main.c # Windows
clang -shared -fPIC -o libadd.dylib main.c # MacOS
# file: ${PROJECT_ROOT}/assets/libadd.dll
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2. Declare the assets path #
You should declare path of the dylib in the pubspec.yaml file as images.
flutter:
assets:
- assets/libadd.dll # Fill it in according to your storage location
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3. Write flutter core code to call native function. #
import 'package:flutter/material.dart';
import 'dart:ffi' as ffi;
import 'package:call/call.dart';
typedef FuncNative = ffi.Int32 Function(ffi.Int32, ffi.Int32);
typedef FuncDart = int Function(int, int);
void main() => runApp(App());
class App extends StatefulWidget {
@override
_AppState createState() => _AppState();
}
class _AppState extends State<App> {
@override
Widget build(BuildContext context) {
var dll = getDyLibModule('assets/libadd.dll'); // use it as images.
var add = dll.lookupFunction<FuncNative, FuncDart>('add');
return Text(
add(999, 54639).toString(),
textDirection: TextDirection.ltr
);
}
}
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4. Run the flutter application #
Finally, You can see the number 55638 in the top left corner of the application.
License
For personal and professional use. You cannot resell or redistribute these repositories in their original state.
Files:
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