ToastUtils崩溃

version:1.30.6

### MainActivity 双击退出
``` java
@Override
public void onBackPressed() {
if (DoublePressedExit.isDoublePressed()) {
super.onBackPressed();
} else {
ToastUtils.showShort("再次点击退出应用");
}
}
```
### 出现崩溃

```
android.view.WindowLeaked: Activity com.work.demo.main.MainActivity has leaked window android.widget.ImageView{7cdd26b V.ED..... ......ID 0,0-278,83} that was originally added here
at android.view.ViewRootImpl.(ViewRootImpl.java:591)
at android.view.WindowManagerGlobal.addView(WindowManagerGlobal.java:362)
at android.view.WindowManagerImpl.addView(WindowManagerImpl.java:94)
at com.blankj.utilcode.util.ToastUtils$WindowManagerToast.show(ToastUtils.java:630)
at com.blankj.utilcode.util.ToastUtils$ActivityToast.showWithActivityWindow(ToastUtils.java:739)
at com.blankj.utilcode.util.ToastUtils$ActivityToast.show(ToastUtils.java:680)
at com.blankj.utilcode.util.ToastUtils$2.run(ToastUtils.java:494)
at com.blankj.utilcode.util.ThreadUtils.runOnUiThread(ThreadUtils.java:70)
at com.blankj.utilcode.util.UtilsBridge.runOnUiThread(UtilsBridge.java:554)
at com.blankj.utilcode.util.ToastUtils.show(ToastUtils.java:483)
at com.blankj.utilcode.util.ToastUtils.show(ToastUtils.java:472)
at com.blankj.utilcode.util.ToastUtils.showShort(ToastUtils.java:383)
at com.work.demo.main.MainActivity.onBackPressed(MainActivity.java:204)
```