我知道如果我旋转设备，当前的活动会被破坏并重新创建。如果活动的onCreate（）中有Html code:
input type="text" class="form-control" id="tokenfield-typeahead" value="red,green,blue" />
script:
var engine = new Bloodhound({
local: [{value: 'red'}, {value: 'blue'}, {value: 'green'} , {value: 'yellow'}, {value: 'violet'}, {value: 'brown'}, {value: 'purple'}, {value: 'black'}, {value: 'white'}],
datumTokenizer: function(d) {
return Bloodhound.tokenizers.whitespace(d.value);
},
queryTokenizer: Bloodhound.tokenizers.whitespace
});
engine.initialize();
$('#tokenfield-typeahead').tokenfield({
typeahead: [null, { source: engine.ttAdapter() }]
});
可用，我可以通过调用
savedInstanceState然而@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
if (savedInstanceState == null) {
iMyFragment = new MyFragment()
Log.d(TAG, "____ onCreate: iMyFragment: " + iMyFragment);
} else {
iLottoTicketFragment = (LottoTicketFragment) getSupportFragmentManager().findFragmentByTag(MyFragment.FRAGMENT_TAG);
Log.d(TAG, "____ savedinstance: iMyFragment: " + iLottoTicketFragment);
if(iMyFragment == null) {
iMyFragment = new MyFragment();
Log.d(TAG, "____ recreate: iMyFragment: " + iLottoTicketFragment);
}
}
}
返回的实例与之前的实例不同，会造成各种麻烦。
这是日志输出（比较ids 973eb65和73e27ce）
findFragmentByTag任何人都知道如何从06-01 15:47:16.687 15729-15729/D/MainActivity: ____ onCreate: iMyFragment: MyFragment{973eb65}
06-01 15:47:29.774 15729-15729/D/MainActivity: ____ savedinstance: iMyFragment: MyFragment{73e27ce #1 id=0x7f0f0098 MyFragment}
获取完全相同的实例？
答案 0 :(得分：0)
旋转设备时，会创建一个新活动。保留了状态，但重新创建了所有视图和片段。