Error compiling to Android with cargo apk

[naomijub]

Hi, I have tried to compile a project to android and I get this error.
Rust nightly:

error[E0599]: no method named `set_suspend_callback` found for reference `&winit::event_loop::EventLoopWindowTarget<T>` in the current scope
  --> /Users/julia.boeira/.cargo/registry/src/github.com-1ecc6299db9ec823/glutin-0.24.1/src/api/android/mod.rs:86:12
   |
86 |         el.set_suspend_callback(Some(Box::new(move |suspended| {
   |            ^^^^^^^^^^^^^^^^^^^^ method not found in `&winit::event_loop::EventLoopWindowTarget<T>`

error[E0615]: attempted to take value of method `SwapBuffersWithDamageKHR` on type `&api::egl::egl::Egl`
   --> /Users/julia.boeira/.cargo/registry/src/github.com-1ecc6299db9ec823/glutin-0.24.1/src/api/egl/mod.rs:694:17
    |
694 |         if !egl.SwapBuffersWithDamageKHR.is_loaded() {
    |                 ^^^^^^^^^^^^^^^^^^^^^^^^ method, not a field
    |
help: use parentheses to call the method
    |
694 |         if !egl.SwapBuffersWithDamageKHR(_, _, _, _).is_loaded() {
    |                                         ^^^^^^^^^^^^

error[E0615]: attempted to take value of method `SwapBuffersWithDamageKHR` on type `&api::egl::egl::Egl`
   --> /Users/julia.boeira/.cargo/registry/src/github.com-1ecc6299db9ec823/glutin-0.24.1/src/api/egl/mod.rs:740:13
    |
740 |         egl.SwapBuffersWithDamageKHR.is_loaded()
    |             ^^^^^^^^^^^^^^^^^^^^^^^^ method, not a field
    |
help: use parentheses to call the method
    |
740 |         egl.SwapBuffersWithDamageKHR(_, _, _, _).is_loaded()
    |                                     ^^^^^^^^^^^^

error: aborting due to 3 previous errors

Some errors have detailed explanations: E0599, E0615.
For more information about an error, try `rustc --explain E0599`.
error: could not compile `glutin`.

rust stable:

error[E0599]: no associated item named `EPSILON` found for type `f64` in the current scope
   --> /Users/julia.boeira/.cargo/registry/src/github.com-1ecc6299db9ec823/winit-0.22.2/src/platform_impl/android/mod.rs:101:75
    |
101 |                         if (scale_factor - old_scale_factor).abs() < f64::EPSILON {
    |                                                                           ^^^^^^^ associated item not found in `f64`
    |
help: you are looking for the module in `std`, not the primitive type
    |
101 |                         if (scale_factor - old_scale_factor).abs() < std::f64::EPSILON {
    |                                                                      ^^^^^^^^^^^^^^^^^

error: aborting due to previous error

For more information about this error, try `rustc --explain E0599`.
error: could not compile `winit`.

To learn more, run the command again with --verbose.
Error: Command 'cargo build --target aarch64-linux-android' had a non-zero exit code.

[katyo]

@naomijub, looks like your stable rustc outdated.

[naomijub]

Updated it and got

Compiling glutin v0.24.1
error[E0599]: no method named `set_suspend_callback` found for reference `&winit::event_loop::EventLoopWindowTarget<T>` in the current scope
  --> /Users/julia.boeira/.cargo/registry/src/github.com-1ecc6299db9ec823/glutin-0.24.1/src/api/android/mod.rs:86:12
   |
86 |         el.set_suspend_callback(Some(Box::new(move |suspended| {
   |            ^^^^^^^^^^^^^^^^^^^^ method not found in `&winit::event_loop::EventLoopWindowTarget<T>`

error[E0615]: attempted to take value of method `SwapBuffersWithDamageKHR` on type `&api::egl::egl::Egl`
   --> /Users/julia.boeira/.cargo/registry/src/github.com-1ecc6299db9ec823/glutin-0.24.1/src/api/egl/mod.rs:694:17
    |
694 |         if !egl.SwapBuffersWithDamageKHR.is_loaded() {
    |                 ^^^^^^^^^^^^^^^^^^^^^^^^ method, not a field
    |
help: use parentheses to call the method
    |
694 |         if !egl.SwapBuffersWithDamageKHR(_, _, _, _).is_loaded() {
    |                                         ^^^^^^^^^^^^

error[E0615]: attempted to take value of method `SwapBuffersWithDamageKHR` on type `&api::egl::egl::Egl`
   --> /Users/julia.boeira/.cargo/registry/src/github.com-1ecc6299db9ec823/glutin-0.24.1/src/api/egl/mod.rs:740:13
    |
740 |         egl.SwapBuffersWithDamageKHR.is_loaded()
    |             ^^^^^^^^^^^^^^^^^^^^^^^^ method, not a field
    |
help: use parentheses to call the method
    |
740 |         egl.SwapBuffersWithDamageKHR(_, _, _, _).is_loaded()
    |                                     ^^^^^^^^^^^^

error: aborting due to 3 previous errors

Some errors have detailed explanations: E0599, E0615.
For more information about an error, try `rustc --explain E0599`.
error: could not compile `glutin`.

To learn more, run the command again with --verbose.
Error: Command 'cargo build --target aarch64-linux-android' had a non-zero exit code.

[naomijub]

cargo 1.44.0 (05d080faa 2020-05-06)
rustup 1.21.1 (7832b2ebe 2019-12-20)
rustc 1.44.0 (49cae5576 2020-06-01)

[kchibisov]

glutin doesn't work on android now IIRC. There's a branch to make it work #1274

[Araminos]

glutin doesn't work on android now IIRC. There's a branch to make it work #1274

I have same errors with android. Unfortunately, I don't understand discussion #1274. I tried this branch with no success. Would you be able to provide path for stable version of glutin?

[PonasKovas]

Did anyone manage to compile?

[philipp-kaiser]

I'm also trying for days to get either winit, glutin or just some hello world app running on android without success. Is there any compiling and running example out there?

[naomijub]

I tried once and gave up after. Was waiting for this to be merged #1313

[philipp-kaiser]

Wow, i got it 🎉

To be honest, i don't know what exactly i did. But give me some days to figure out and then i'll push all information needed.

Just so far:

• I used the simple app project from @katyo
• I used the the glutin branch of @katyo plus some minor changes
• I changed some functions on Winit

[katyo]

@Kaiser1989 Great. Can you publish your changes?

[philipp-kaiser]

Here is my running example:

https://github.com/Kaiser1989/rust-android-example

I forked glutin and winit to get some nice and easy cargo dependencies. It's completly based on your (@katyo ) glutin_simple project. I just did some hacky changes to winit and changed the ContextBuilder config.

[Araminos]

Here is my running example:

https://github.com/Kaiser1989/rust-android-example

I forked glutin and winit to get some nice and easy cargo dependencies. It's completly based on your (@katyo ) glutin_simple project. I just did some hacky changes to winit and changed the ContextBuilder config.

Hello Philipp. Thank you so much for this grate job. This example works perfect. Grate respect. Many thanks to @katyo for support and ideas.