【发布时间】:2016-02-25 09:01:13
【问题描述】:
我想在广告关闭后更改片段。
但它会抛出一个 IllegalStateException
片段1:
...
mInterstitialAd = new InterstitialAd(this.getContext());
mInterstitialAd.setAdUnitId("ca-app-pub-3940256099942544/1033173712");
mInterstitialAd.setAdListener(new AdListener() {
@Override
public void onAdClosed() {
masterActivity.showGame(); // <---- here comes the error
}
});
requestNewInterstitial();
// Action Listener on Button show game
Button btnShowGame = (Button) view.findViewById(R.id.btnShowGame);
btnShowGame.setOnTouchListener(new View.OnTouchListener() {
@Override
public boolean onTouch(View v, MotionEvent event) {
if (mInterstitialAd.isLoaded()) {
mInterstitialAd.show();
} else {
masterActivity.showGame();
}
return true;
}
});
MasterActivity:
...
public void showGame() {
FragmentGameBoard fragment = new FragmentGameBoard();
fragment.setMasterActivity(this);
FragmentManager fm = getSupportFragmentManager();
FragmentTransaction transaction = fm.beginTransaction();
transaction.replace(R.id.contentFragment, fragment);
transaction.commit();
}
结果:
java.lang.IllegalStateException: Can not perform this action after onSaveInstanceState
从这篇文章看来,这个错误是正常的: http://www.androiddesignpatterns.com/2013/08/fragment-transaction-commit-state-loss.html
--> “避免在异步回调方法中执行事务。”
但是如何实现我想做的呢?
这显然与广告和异步逻辑有关。
我不希望用户必须再次单击按钮来切换片段。
实际
fragment1 -(clickButton)-> interstitialAd -(closeAd)-> fragment1 -(clickButton)-> fragment2
预期
fragment1 -(clickButton)-> interstitialAd -(closeAd)-> fragment2
感谢您的帮助!
【问题讨论】:
标签: android asynchronous fragment