IOS orientation doesn't set

[ghost]

Whether I specify portrait or landscape in the buildozer.spec, when I launch the app via buildozer ios debug deploy run, it uses both portrait and landscape. Any workaround? I want to specify portrait only or landscape only at times.

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[hackalog]

As of Jan 2019, this still requires manual editing of main.m (this is mentioned in a comment in that file, but I don't think anyone is expecting to have to edit it manually)

e.g. Here I've forced it to Landscape-only

    // Orientation restrictions
    // ========================
    // Comment or uncomment blocks 1-3 in order the limit orientation support

    // 1. Landscape only
    NSString *result = [[NSString alloc] initWithString:@"KIVY_ORIENTATION=LandscapeLeft LandscapeRight"];

    // 2. Portrait only
    // NSString *result = [[NSString alloc] initWithString:@"KIVY_ORIENTATION=Portrait PortraitUpsideDown"];

    // 3. All orientations
    //NSString *result = [[NSString alloc] initWithString:@"KIVY_ORIENTATION="];
    //for (int i = 0; i < [orientations count]; i++) {
    //    NSString *item = [orientations objectAtIndex:i];
    //    item = [item substringFromIndex:22];
    //    if (i > 0)
    //        result = [result stringByAppendingString:@" "];
    //    result = [result stringByAppendingString:item];
    //}
    // ========================

This is a pain to do all the time, so in our build scripts, we use a chunk of code like this to automate it:

    sed -i .ORIG 's/void export_orientation() {/void OLD_export_orientation() {/' $(IOS_BUILD_DIR)/$(IOS)-ios/main.m
    cat $(IOS_FILES_DIR)/export_orientation.m >> $(IOS_BUILD_DIR)/$(IOS)-ios/main.m

It's a brutal hack, but we basically just rename the original function, and append a copy of the function with the orientation set correctly.
Here's our export_orientation.m:

void export_orientation() {
    // 1. Landscape only
    NSString *result = [[NSString alloc] initWithString:@"KIVY_ORIENTATION=LandscapeLeft LandscapeRight"];

    putenv((char *)[result UTF8String]);
    NSLog(@"Available orientation: %@", result);
}

The right answer is either fix the code to check the environment, or add a conditional block to the cookiecutter, using some kind of jinja mojo.

[hackalog]

I should also mention, this is likely also a kivy-ios issue, since the cookiecutter changes would have to happen there. I've opened an issue there and linked to this one

[Julian-O]

On hold pending Kivy-ios support.