Levi

@Override protected void onRestoreInstanceState(Parcelable state) { SavedState savedState = (SavedState) state; super.onRestoreInstanceState(savedState.getSuperState()); this.displayState = savedState.state; setDisplayState(this.displayState); } 其中如果设置了 this.displayState = savedState.state; 再调用 setDisplayState(this.displayState); 等于没有实际作用，不应该提前设置状态值 而是直接调用 setDisplayState(savedState.state;);