Allow setting windowSoftInputMode (#1462)

* Allow setting windowSoftInputMode

* Extract method

Author: M-i-k-e-l

lib/android/src/main/java/com/wix/reactnativeuilib/keyboardinput/CustomKeyboardLayout.java

@@ -24,6 +24,8 @@ public class CustomKeyboardLayout implements ReactSoftKeyboardMonitor.Listener,
     private final InputMethodManager mInputMethodManager;
     private final ReactSoftKeyboardMonitor mKeyboardMonitor;
     private WeakReference<CustomKeyboardRootViewShadow> mShadowNode = new WeakReference<>(null);
+    private int mSoftInputMode;
+    private boolean mIsShown = false;
 
     public CustomKeyboardLayout(ReactContext reactContext, ReactSoftKeyboardMonitor keyboardMonitor, ReactScreenMonitor screenMonitor) {
         mKeyboardMonitor = keyboardMonitor;
@@ -33,6 +35,18 @@ public CustomKeyboardLayout(ReactContext reactContext, ReactSoftKeyboardMonitor
         screenMonitor.addListener(this);
     }
 
+    public void setShown(boolean isShown) {
+        mIsShown = isShown;
+        Window window = getWindow();
+        if (window != null) {
+            if (mIsShown) {
+                mSoftInputMode = window.getAttributes().softInputMode;
+            } else {
+                window.setSoftInputMode(mSoftInputMode);
+            }
+        }
+    }
+
     @Override
     public void onSoftKeyboardVisible(boolean distinct) {
         if (distinct) {
@@ -167,16 +181,19 @@ private int getHeightForCustomContent() {
     }
 
     private void setKeyboardOverlayMode() {
-        Window window = getWindow();
-        if (window != null) {
-            window.setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_ADJUST_PAN);
-        }
+        setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_ADJUST_PAN);
     }
 
     private void clearKeyboardOverlayMode() {
-        Window window = getWindow();
-        if (window != null) {
-            window.setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_ADJUST_RESIZE);
+        setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_ADJUST_RESIZE);
+    }
+
+    private void setSoftInputMode(int softInputMode) {
+        if (mIsShown) {
+            Window window = getWindow();
+            if (window != null) {
+                window.setSoftInputMode(softInputMode);
+            }
         }
     }
 

lib/android/src/main/java/com/wix/reactnativeuilib/keyboardinput/CustomKeyboardRootView.java

@@ -24,4 +24,16 @@ public void onViewAdded(View child) {
         }
         super.onViewAdded(child);
     }
+
+    @Override
+    protected void onAttachedToWindow() {
+        super.onAttachedToWindow();
+        mLayout.setShown(true);
+    }
+
+    @Override
+    protected void onDetachedFromWindow() {
+        mLayout.setShown(false);
+        super.onDetachedFromWindow();
+    }
 }