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ui/app: call main from Android and iOS

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Android can only run c-shared libraries which means that every
Gio program must create its window and event loop from an init
function.

The same applies to iOS but for a more benign reason: the gio tool
builds programs in c-archive mode for iOS and links the binary with
a Objective-C driver.

Allow Gio programs to run off its main function by linking to and
invoking main even from Android libraries and iOS ditto.

Signed-off-by: Elias Naur <mail@eliasnaur.com>
This commit is contained in:
Elias Naur
2019-07-22 11:17:09 +02:00
parent 4e0d820a5b
commit c080a54038
13 changed files with 87 additions and 41 deletions
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cmd/gio/iosbuild.go
+6 -3
View File
@@ -139,10 +139,13 @@ func exeIOS(tmpDir, target, app string, bi *buildInfo) error {
const mainmSrc = `@import UIKit;
@import Gio;
void gio_runMain(void);
int main(int argc, char * argv[]) {
@autoreleasepool {
return UIApplicationMain(argc, argv, nil, NSStringFromClass([GioAppDelegate class]));
}
@autoreleasepool {
gio_runMain();
return UIApplicationMain(argc, argv, nil, NSStringFromClass([GioAppDelegate class]));
}
}`
if err := ioutil.WriteFile(mainm, []byte(mainmSrc), 0660); err != nil {
return err