Got initial directory picking working

android/src/main/java/com/rndirectorypicker/DirectoryPicker.java

@@ -1,20 +0,0 @@
-package com.rndirectorypicker;
-
-import android.os.Build;
-import android.graphics.Color;
-import android.view.View;
-import android.view.Window;
-import android.app.Activity;
-
-public class DirectoryPicker {
-    /**
-     * For usage in the React Module
-     */
-    public static void changeBarColors(final Activity activity, final Boolean isDarkMode, final String translucentLightStr, final String translucentDarkStr) {
-        if (activity == null) {
-            return;
-        }
-        final Window window = activity.getWindow();
-
-    }
-}

android/src/main/java/com/rndirectorypicker/DirectoryPickerModule.java

@@ -1,6 +1,13 @@
 package com.rndirectorypicker;
 
+import android.app.Activity;
+import android.content.Intent;
+import android.net.Uri;
+import android.support.v7.app.AppCompatActivity;
+import android.util.Log;
+
 import com.facebook.react.bridge.Arguments;
+import com.facebook.react.bridge.Callback;
 import com.facebook.react.bridge.ReactApplicationContext;
 import com.facebook.react.bridge.ReactContextBaseJavaModule;
 import com.facebook.react.bridge.ReactMethod;
@@ -8,12 +15,20 @@ import com.facebook.react.bridge.Promise;
 import com.facebook.react.bridge.WritableMap;
 import com.facebook.react.uimanager.IllegalViewOperationException;
 
+import static android.app.Activity.RESULT_OK;
+
 public class DirectoryPickerModule extends ReactContextBaseJavaModule {
     private static final String ERROR_NO_ACTIVITY = "E_NO_ACTIVITY";
     private static final String ERROR_NO_ACTIVITY_MESSAGE = "Tried to change the navigation bar while not attached to an Activity";
 
+    private Callback onDone;
+
+    private static final int RQS_OPEN_DOCUMENT_TREE = 2;
+
     public DirectoryPickerModule(ReactApplicationContext reactContext) {
         super(reactContext);
+
+        getReactApplicationContext().addActivityEventListener(new ActivityEventListener());
     }
 
     @Override
@@ -22,12 +37,39 @@ public class DirectoryPickerModule extends ReactContextBaseJavaModule {
     }
 
     @ReactMethod
-    public void changeBarColors(final Boolean isDarkMode, Promise promise) {
-        DirectoryPicker.changeBarColors(
-                getCurrentActivity(),
-                isDarkMode,
-                "",
-                ""
-        );
+    public void selectDirectory(final Callback onDone) {
+        Activity activity = getCurrentActivity();
+        if (activity == null) {
+            return;
+        }
+        Intent intent = new Intent(Intent.ACTION_OPEN_DOCUMENT_TREE);
+        intent.putExtra(Intent.EXTRA_LOCAL_ONLY, true);
+        activity.startActivityForResult(intent, RQS_OPEN_DOCUMENT_TREE);
+
+        this.onDone = onDone;
+    }
+
+
+    private class ActivityEventListener implements com.facebook.react.bridge.ActivityEventListener {
+
+        @Override
+        public void onActivityResult(Activity activity, int requestCode, int resultCode, Intent data) {
+           this.onActivityResult(requestCode, resultCode, data);
+        }
+
+        public void onActivityResult(int requestCode, int resultCode, Intent data) {
+            Log.i("MYTAG", String.format("requestCode %s", requestCode));
+            Log.i("MYTAG", String.format("resultCode %s", resultCode));
+
+            if(resultCode == RESULT_OK && requestCode == RQS_OPEN_DOCUMENT_TREE){
+                Uri uriTree = data.getData();
+
+                Log.i("MYTAG", String.format("uriTree %s", uriTree.toString()));
+            }
+        }
+
+        @Override
+        public void onNewIntent(Intent intent) {
+        }
     }
 }

index.android.js

@@ -1,13 +1,9 @@
 import { NativeModules } from "react-native";
 
-const { ImmersiveBars } = NativeModules;
+const { DirectoryPicker } = NativeModules;
 
-const changeBarColors = (
-    isDarkMode = false,
-    translucentLightStr = "",
-    translucentDarkStr = "",
-) => {
-    ImmersiveBars.changeBarColors(isDarkMode, translucentLightStr, translucentDarkStr);
+const selectDirectory = (onDone) => {
+    DirectoryPicker.selectDirectory(onDone);
 };
 
-export { changeBarColors };
+export { selectDirectory };

index.d.ts

@@ -1,7 +1,5 @@
-declare module "react-native-immersive-bars" {
-    export function changeBarColors(
-        isDarkMode: boolean,
-        translucentLightStr?: string,
-        translucentDarkStr?: string
+declare module "react-native-directory-picker" {
+    export function selectDirectory(
+        onDone: () => {},
     ): void;
 }

index.js

@@ -1,3 +1,3 @@
-const changeBarColors = () => {};
+const selectDirectory = () => {};
 
-export { changeBarColors };
+export { selectDirectory };

package.json

@@ -26,8 +26,5 @@
   "peerDependencies": {
     "react-native": ">=0.57.0"
   },
-  "homepage": "https://github.com/crutchcorn/react-native-immersive-bars#readme",
-  "devDependencies": {
-    "react-native": "^0.62.2"
-  }
+  "homepage": "https://github.com/crutchcorn/react-native-immersive-bars#readme"
 }