android: add missing impl for clipboard

java/MainActivity.java

@@ -22,6 +22,8 @@
 import android.content.Context;
 import android.content.Intent;
 import android.content.res.Configuration;
+import android.content.ClipData;
+import android.content.ClipboardManager;
 
 import android.graphics.Color;
 import android.graphics.Insets;
@@ -342,5 +344,25 @@ public void run() {
                 }
             });
     }
+
+    public String getClipboardText() {
+        ClipboardManager clipboard = (ClipboardManager) getSystemService(Context.CLIPBOARD_SERVICE);
+
+        if (clipboard == null || !clipboard.hasPrimaryClip()) {
+            return null;
+        }
+
+        CharSequence clipData = clipboard.getPrimaryClip().getItemAt(0).getText();
+        if (clipData == null) {
+            return null;
+        }
+
+        return clipData.toString();
+    }
+    public void setClipboardText(String text) {
+        ClipboardManager clipboard = (ClipboardManager) getSystemService(Context.CLIPBOARD_SERVICE);
+        ClipData clip = ClipData.newPlainText("label", text);
+        clipboard.setPrimaryClip(clip);
+    }
 }
 

src/native/android.rs

@@ -331,10 +331,41 @@ impl AndroidClipboard {
 }
 impl crate::native::Clipboard for AndroidClipboard {
     fn get(&mut self) -> Option<String> {
-        None
+        unsafe {
+            let env = attach_jni_env();
+
+            let text = ndk_utils::call_object_method!(
+                env,
+                ACTIVITY,
+                "getClipboardText",
+                "()Ljava/lang/String;"
+            );
+            if text.is_null() {
+                return None;
+            }
+
+            let text = ndk_utils::get_utf_str!(env, text).to_string();
+            Some(text)
+        }
     }
 
-    fn set(&mut self, data: &str) {}
+    fn set(&mut self, data: &str) {
+        let data = std::ffi::CString::new(data).unwrap();
+        unsafe {
+            let env = attach_jni_env();
+
+            let new_string_utf = (**env).NewStringUTF.unwrap();
+            let jtext = new_string_utf(env, data.as_ptr());
+
+            ndk_utils::call_void_method!(
+                env,
+                ACTIVITY,
+                "setClipboardText",
+                "(Ljava/lang/String;)V",
+                jtext
+            );
+        }
+    }
 }
 
 pub unsafe fn run<F>(conf: crate::conf::Conf, f: F)