Android系统软键盘高度获取

通过阅读Rn插件的源码，发现在Android11系统以上，当Activity的android:windowSoftInputMode="adjustNothing"这种模式下可以通过这种方法获取软键盘的高度

 rootLayout = (ViewGroup) getWindow().getDecorView();
        rootLayout.getViewTreeObserver().addOnGlobalLayoutListener(new ViewTreeObserver.OnGlobalLayoutListener() {
            @RequiresApi(api = Build.VERSION_CODES.R)
            @Override
            public void onGlobalLayout() {
                rootLayout.getWindowVisibleDisplayFrame(VoiceInputActivity.this.mVisibleViewArea);
                WindowInsets rootInsets =rootLayout.getRootWindowInsets();
                if (rootInsets != null) {
                    boolean keyboardIsVisible = rootInsets.isVisible(WindowInsets.Type.ime());
                    if (keyboardIsVisible != VoiceInputActivity.this.mKeyboardIsVisible) {
                        VoiceInputActivity.this.mKeyboardIsVisible = keyboardIsVisible;
                        if (keyboardIsVisible) {
                            Insets imeInsets = rootInsets.getInsets(WindowInsets.Type.ime());
                            Insets barInsets = rootInsets.getInsets(WindowInsets.Type.systemBars());
                            int height = imeInsets.bottom - barInsets.bottom;
                            int softInputMode = VoiceInputActivity.this.getWindow().getAttributes().softInputMode;
                            int screenY = softInputMode == 48 ? VoiceInputActivity.this.mVisibleViewArea.bottom - height : VoiceInputActivity.this.mVisibleViewArea.bottom;

                            Log.d(TAG, "软键盘弹起 onGlobalLayout: " + height + " , screenY: " + screenY);
//                            ReactRootView.this.sendEvent("keyboardDidShow", this.createKeyboardEventPayload((double)PixelUtil.toDIPFromPixel((float)screenY), (double)PixelUtil.toDIPFromPixel((float)this.mVisibleViewArea.left), (double)PixelUtil.toDIPFromPixel((float)this.mVisibleViewArea.width()), (double)PixelUtil.toDIPFromPixel((float)height)));
                        } else {
//                            ReactRootView.this.sendEvent("keyboardDidHide", this.createKeyboardEventPayload((double)PixelUtil.toDIPFromPixel((float)ReactRootView.this.mLastHeight), 0.0, (double)PixelUtil.toDIPFromPixel((float)this.mVisibleViewArea.width()), 0.0));
                            Log.d(TAG, "软键盘收起");

                        }
                    }

                }
            }
        });