增加道路名显示和详细信息功能

app/src/main/java/com/navinfo/omqs/ui/other/ShareViewModel2.kt

@@ -0,0 +1,54 @@
+//package com.navinfo.omqs.ui.other
+//
+//import androidx.lifecycle.*
+//
+//val vMStoreMap = HashMap<String, VMStoreClass>()
+//
+//inline fun <reified VM : ViewModel> LifecycleOwner.shareViewModels(
+//    scopeName: String,
+//    factory: ViewModelProvider.Factory? = null
+//): Lazy<VM> {
+//    val store: VMStoreClass
+//    if (vMStoreMap.keys.contains(scopeName)) {
+//        store = vMStoreMap[scopeName]!!
+//    } else {
+//        store = VMStoreClass()
+//        vMStoreMap[scopeName] = store
+//    }
+//    store.register(this)
+//    return ViewModelLazy(VM::class,
+//        { store.viewModelStore },
+//        { factory ?: ViewModelProvider.NewInstanceFactory() })
+//}
+//
+//class VMStoreClass : ViewModelStoreOwner {
+//
+//    private val bindTargets = ArrayList<LifecycleOwner>()
+//    private var vmStore: ViewModelStore? = null
+//
+//    fun register(host: LifecycleOwner) {
+//        if (!bindTargets.contains(host)) {
+//            bindTargets.add(host)
+//            host.lifecycle.addObserver(object : LifecycleEventObserver {
+//                override fun onStateChanged(source: LifecycleOwner, event: Lifecycle.Event) {
+//                    if (event == Lifecycle.Event.ON_DESTROY) {
+//                        host.lifecycle.removeObserver(this)
+//                        bindTargets.remove(host)
+//                        if (bindTargets.isEmpty()) {//如果当前商店没有关联对象，则释放资源
+//                            vMStoreMap.entries.find { it.value == this@VMStoreClass }?.also {
+//                                vmStore?.clear()
+//                                vMStoreMap.remove(it.key)
+//                            }
+//                        }
+//                    }
+//                }
+//            })
+//        }
+//    }
+//
+//    override fun getViewModelStore(): ViewModelStore {
+//        if (vmStore == null)
+//            vmStore = ViewModelStore()
+//        return vmStore!!
+//    }
+//}