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JNI based show_soft_input #178

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JNI based show_soft_input #178

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99c0b3d
Use InputMethodManager#showSoftInput to show_soft_input
jancespivo Dec 28, 2024
0919742
replaced error handling with simple unwrap, it did not work at all an…
jancespivo Dec 28, 2024
d61558c
cargo fmt
jancespivo Dec 28, 2024
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53 changes: 44 additions & 9 deletions android-activity/src/native_activity/mod.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -353,15 +353,50 @@ impl AndroidAppInner {

// TODO: move into a trait
pub fn show_soft_input(&self, show_implicit: bool) {
let na = self.native_activity();
unsafe {
let flags = if show_implicit {
ndk_sys::ANATIVEACTIVITY_SHOW_SOFT_INPUT_IMPLICIT
} else {
0
};
ndk_sys::ANativeActivity_showSoftInput(na as *mut _, flags);
}
let na = unsafe { jni::objects::JObject::from_raw(self.activity_as_ptr() as _) };
let jvm = self.jvm.clone();
let mut env = jvm.attach_current_thread().unwrap();
let class_ctxt = env.find_class("android/content/Context").unwrap();
let ims = env
.get_static_field(class_ctxt, "INPUT_METHOD_SERVICE", "Ljava/lang/String;")
.unwrap();

let im_manager = env
.call_method(
&na,
"getSystemService",
"(Ljava/lang/String;)Ljava/lang/Object;",
&[ims.borrow()],
)
.unwrap()
.l()
.unwrap();

let jni_window = env
.call_method(na, "getWindow", "()Landroid/view/Window;", &[])
.unwrap()
.l()
.unwrap();
let view = env
.call_method(jni_window, "getDecorView", "()Landroid/view/View;", &[])
.unwrap()
.l()
.unwrap();

env.call_method(
im_manager,
"showSoftInput",
"(Landroid/view/View;I)Z",
&[
jni::objects::JValue::Object(&view),
if show_implicit {
(ndk_sys::ANATIVEACTIVITY_SHOW_SOFT_INPUT_IMPLICIT as i32).into()
} else {
0i32.into()
},
],
)
.unwrap();
}

// TODO: move into a trait
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