如何解决ObjectBox 生成器：错误：没有名为“lazy”的命名参数
我使用此方法将我的 ObjectBox Store 注册为 LazySingleton
setupLocatorAdditions() async {
stackedAdditionLocator.registerLazySingletonAsync<Store>(() => openStore());
}
效果很好。但是从 buildrunner 多次重建后，ObjectBox Generator 抛出了这个错误，不管我是否删除了单例注册并重新运行它。
lib/objectBox.g.dart:1341:67: Error: No named parameter with the name 'lazy'.
weekDays: const fb.ListReader<int>(fb.Int8Reader(),lazy: false)
^^^^
../../Flutter/Flutter/.pub-cache/hosted/pub.dartlang.org/objectBox-1.1.1/lib/flatbuffers/flat_buffers.dart:994:9: Context: Found this candidate,but the arguments don't match.
const ListReader(this._elementReader);
^^^^^^^^^^
lib/objectBox.g.dart:1343:68: Error: No named parameter with the name 'lazy'.
locations: const fb.ListReader<int>(fb.Int8Reader(),lazy: false)
^^^^
../../Flutter/Flutter/.pub-cache/hosted/pub.dartlang.org/objectBox-1.1.1/lib/flatbuffers/flat_buffers.dart:994:9: Context: Found this candidate,but the arguments don't match.
const ListReader(this._elementReader);
^^^^^^^^^^
2
FAILURE: Build Failed with an exception.
解决方法
该参数不是已发布的 objectbox-dart v1.1.1 的一部分（它是由 this commit 在 13 天前添加的，而 v1.1.1 是在 19 天前发布的）。
看起来您使用的是不匹配的生成器？如果您在 objectbox_generator 上使用依赖覆盖，您可以检查您的 replace，例如来自 git？如果你使用依赖覆盖，你应该坚持一个特定的提交，并确保你在生成器和 objectbox 库本身上使用它。如果您不需要依赖项覆盖，只需将其从您的 private val firstFragment = firstFragment()
private val secondFragment = secondFragment()
private val thirdFragment = thirdFragment()
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
setContentView(R.layout.activity_main)
navView = findViewById(R.id.nav_view)
sharedViewModel = ViewModelProvider(this).get(SharedViewModel::class.java)
navView.setOnNavigationItemSelectedListener(mOnNavigationItemSelectedListener)
navView.menu.findItem(R.id.navigation_FIRST).isChecked = true
supportFragmentManager.beginTransaction()
.replace(R.id.nav_host_fragment,firstFragment)
.replace(R.id.nav_host_fragment,secondFragment)
.replace(R.id.nav_host_fragment,thirdFragment)
.commit()
setTabStateFragment(TabState.FIRST).commit()
}
override fun onBackPressed() {
if (supportFragmentManager.backStackEntryCount > 0 || !firstFragment.isHidden){
super.onBackPressed()
} else {
setTabStateFragment(TabState.FIRST).commit()
navView.menu.findItem(R.id.navigation_FIRST).isChecked = true
}
}
private fun setTabStateFragment(state: TabState): FragmentTransaction {
supportFragmentManager.popBackStack(null,FragmentManager.POP_BACK_STACK_INCLUSIVE)
val transaction = supportFragmentManager.beginTransaction()
when (state) {
TabState.FIRST -> {
transaction.show(firstFragment)
transaction.hide(secondFragment)
transaction.hide(thirdFragment)
}
TabState.SECOND -> {
transaction.hide(firstFragment)
transaction.show(secondFragment)
transaction.hide(thirdFragment)
}
TabState.THIRD -> {
transaction.hide(firstFragment)
transaction.hide(secondFragment)
transaction.show(thirdFragment)
}
}
return transaction
}
private val mOnNavigationItemSelectedListener = BottomNavigationView.OnNavigationItemSelectedListener { item ->
when (item.itemId) {
R.id.navigation_FIRST -> {
setTabStateFragment(TabState.FIRST).commit()
return@OnNavigationItemSelectedListener true
}
R.id.navigation_second -> {
setTabStateFragment(TabState.SECOND).commit()
return@OnNavigationItemSelectedListener true
}
R.id.navigation_third -> {
setTabStateFragment(TabState.THIRD).commit()
return@OnNavigationItemSelectedListener true
}
}
false
}
internal enum class TabState {
FIRST,SECOND,THIRD,}
中删除。
在这两种情况下，进行更改后运行 pubspec.yaml 和 pubspec.yaml。
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