Re-export 'ndk' and 'ndk_sys' crates

Since we expose `ndk` types in the public API it makes sense to
re-export these APIs so users of android-activity can defer to these
without needing to manually sync the versions for explicit dependencies.

Author: rib

android-activity/CHANGELOG.md

@@ -6,6 +6,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+- The `ndk` and `ndk-sys` crates are now re-exported under `android_activity::ndk` and `android_activity::ndk_sys` ([#194](https://github.com/rust-mobile/android-activity/pull/194))
+
 ## [0.6.0] - 2024-04-26
 
 ### Changed
@@ -25,32 +27,32 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ### Changed
 - Avoids depending on default features for `ndk` crate to avoid pulling in any `raw-window-handle` dependencies ([#142](https://github.com/rust-mobile/android-activity/pull/142))
 
-    **Note:** Technically, this could be observed as a breaking change in case you
-    were depending on the `rwh_06` feature that was enabled by default in the
-    `ndk` crate. This could be observed via the `NativeWindow` type (exposed via
-    `AndroidApp::native_window()`) no longer implementing `rwh_06::HasWindowHandle`.
+  **Note:** Technically, this could be observed as a breaking change in case you
+  were depending on the `rwh_06` feature that was enabled by default in the
+  `ndk` crate. This could be observed via the `NativeWindow` type (exposed via
+  `AndroidApp::native_window()`) no longer implementing `rwh_06::HasWindowHandle`.
 
-    In the unlikely case that you were depending on the `ndk`'s `rwh_06` API
-    being enabled by default via `android-activity`'s `ndk` dependency, your crate
-    should explicitly enable the `rwh_06` feature for the `ndk` crate.
+  In the unlikely case that you were depending on the `ndk`'s `rwh_06` API
+  being enabled by default via `android-activity`'s `ndk` dependency, your crate
+  should explicitly enable the `rwh_06` feature for the `ndk` crate.
 
-    As far as could be seen though, it's not expected that anything was
-    depending on this (e.g. anything based on Winit enables the `ndk` feature
-    based on an equivalent `winit` feature).
+  As far as could be seen though, it's not expected that anything was
+  depending on this (e.g. anything based on Winit enables the `ndk` feature
+  based on an equivalent `winit` feature).
 
-    The benefit of the change is that it can help avoid a redundant
-    `raw-window-handle 0.6` dependency in projects that still need to use older
-    (non-default) `raw-window-handle` versions. (Though note that this may be
-    awkward to achieve in practice since other crates that depend on the `ndk`
-    are still likely to use default features and also pull in
-    `raw-window-handles 0.6`)
+  The benefit of the change is that it can help avoid a redundant
+  `raw-window-handle 0.6` dependency in projects that still need to use older
+  (non-default) `raw-window-handle` versions. (Though note that this may be
+  awkward to achieve in practice since other crates that depend on the `ndk`
+  are still likely to use default features and also pull in
+  `raw-window-handles 0.6`)
 
 - The IO thread now gets named `stdio-to-logcat` and main thread is named `android_main` ([#145](https://github.com/rust-mobile/android-activity/pull/145))
 - Improved IO error handling in `stdio-to-logcat` IO loop. ([#133](https://github.com/rust-mobile/android-activity/pull/133))
 
 ## [0.5.0] - 2023-10-16
 ### Added
-- Added `MotionEvent::action_button()` exposing the button associated with button press/release actions ()
+- Added `MotionEvent::action_button()` exposing the button associated with button press/release actions ([#138](https://github.com/rust-mobile/android-activity/pull/138))
 
 ### Changed
 - rust-version bumped to 0.68 ([#123](https://github.com/rust-mobile/android-activity/pull/123))

android-activity/src/lib.rs

@@ -119,12 +119,17 @@ use std::sync::Arc;
 use std::sync::RwLock;
 use std::time::Duration;
 
-use input::KeyCharacterMap;
+use bitflags::bitflags;
 use libc::c_void;
+
 use ndk::asset::AssetManager;
 use ndk::native_window::NativeWindow;
 
-use bitflags::bitflags;
+// Since we expose `ndk` types in our public API it's convenient if crates can
+// defer to these re-exported APIs and avoid having to bump explicit
+// dependencies when they pull in new releases of android-activity.
+pub use ndk;
+pub use ndk_sys;
 
 #[cfg(not(target_os = "android"))]
 compile_error!("android-activity only supports compiling for Android");
@@ -162,6 +167,7 @@ pub mod error;
 use error::Result;
 
 pub mod input;
+use input::KeyCharacterMap;
 
 mod config;
 pub use config::ConfigurationRef;