Question

我的麻烦使朝向上的扼杀发生了变化。 I ve Trial using onSaveInstanceState()/onResshopInstanceState() and on RetainNonConfiguration Instance()/get LastNonConfiguration Instance( with no luck.

I have:

@Override
public String onRetainNonConfigurationInstance(){
    final String savedType = currentType;
    return savedType;
}

www.un.org/chinese/sc/presidency.asp 我有:

currentType = (String) getLastNonConfigurationInstance();

这一吨位对我来说仍然有效, Current Type在方向变化之后始终为null<>.>。任何建议?



Revision

因此,这是我目前已经做的事,它仍然没有发挥作用:
@Override
protected void onSaveInstanceState(Bundle outState){
    outState.putString("savedType", currentType);
    super.onSaveInstanceState(outState);
}

@Override
protected void onRestoreInstanceState(Bundle savedInstanceState){
    currentType = savedInstanceState.getString("savedType");
    super.onRestoreInstanceState(savedInstanceState);
}

I ve tried putting the super method calls at the beginning and end of each method in every combination I could think of but am still getting a NullPointerException for currentType when the view is created again.

Also

在迪亚洛,我不敢肯定这是否与它有任何关系,但认为这可能是一种有用的信息。


Partial Solution/Partial New Question

因此,我只想从事这项工作。在生命周期结束时,如果再需要变数t,则用一种方法填写了<代码> 当前Type至null。这一点现在已经消失了。屏幕将成功地改变方向,但如果在连续两次之间变换得太快,就会起推波助澜的作用。这是我用来在这个国家开展工作的:

班级:

private String currentType;

在<代码>末尾我有:

currentType = (String) getLastNonConfigurationInstance();

之后:

@Override
public Object onRetainNonConfigurationInstance() {
    final String s = currentType;
    return s;
}

如果取向没有变化,则会进行罚款,然后迅速重新调整。我愿确定这一点,因为各部和零售店正在使用/将使用这一产品,我可以看到人们会放弃这一产品,这将导致产生一种促进作用(把它放到我的库中测试)。我只剩下一根str子,而我stor忙却不忘。对这一新情况提出的任何建议?

Answer 1

So I got this working somewhat like I wanted. There was a statement buried in a method that set currentType to null towards the end of the life cycle when the variable wouldn t be needed again. That s now out of the way. The screen will successfully change orientations but if it s changed between the two successively too quickly it will FC. This is what I used to get it working in this state:

Class Field:

private String currentType;

在条约结束时,我已经:

currentType = (String) getLastNonConfigurationInstance();

之后:

@Override
public Object onRetainNonConfigurationInstance() {
    final String s = currentType;
    return s;
}

如果取向没有变化,则会进行罚款,然后迅速重新调整。提出这个新难题,

Answer 2

你们是否试图把它放入一个布局?

private static final String CURRENT_TYPE = "currentType";
private static final String DEFAULT_TYPE = "defaultType";
@Override
protected void onSaveInstanceState (Bundle outState) {
  outState.putString(CURRENT_TYPE, currentType);
  super.onSaveInstanceState(outState);
}
@Override
protected void onCreate (Bundle savedInstanceState) {
  ...
  currentType = (savedInstanceState == null)? null : 
        savedInstanceState.getString(CURRENT_TYPE, DEFAULT_TYPE);
  ...
}

Revision

Also

Partial Solution/Partial New Question

友情链接