android近期心得整理

private class MyStateListener implements ViewTreeObserver.OnGlobalLayoutListener {
        private final View mDecorView;
        private final CameraFragment mFragment;
        private int mFrameHeight = 0;
        private boolean mKeyboardShow;
        private final Rect mVisibleDisplayFrame;

        IMEStateListener(CameraFragment paramView, View view) {
            this.mFragment = paramView;
            this.mDecorView = view;
            this.mVisibleDisplayFrame = new Rect();
        }

        @Override
        public void onGlobalLayout() {
            this.mDecorView.getWindowVisibleDisplayFrame(mVisibleDisplayFrame);
            int i = this.mVisibleDisplayFrame.height();
            if (this.mFrameHeight == 0) {
                this.mFrameHeight = i;
            }
            if (i < this.mFrameHeight) {
                this.mKeyboardShow = true;
            } else if (this.mKeyboardShow) {
                this.mKeyboardShow = false;
                mHandler.sendEmptyMessage(KEYBOARD_HIDE);
            }
        }
    }