Question

我目前正在学习Nativescript，并希望使用Angular2实现一个示例Android应用程序。

当我使用自定义标题和导航按钮路由到将覆盖模板中默认可见起始页ActionBar的组件时，没有任何反应。

我的组件与自定义ActionBar：

@Component({
  template: `
  <ActionBar title="CustomTitle">
    <NavigationButton text="Back" android.systemIcon="ic_menu_back"></NavigationButton>
  </ActionBar>

   <StackLayout>
        <Label text="Hello World" textWrap="true"></Label>
        <page-router-outlet></page-router-outlet>
    </StackLayout>
  `
})
export class TestComponent {}

标题只能由page.actionBar.title = "MyGoals"以编程方式更改，但在这种情况下我不希望这样。

我试图依靠Nativescript ActionBar Doc和Sample Groceries来实现类似的目标。

在Android应用的模板中更改ActionBar必须做些什么？

更新

当我在功能模块中使用this代码并分离TestComponent时，操作栏不再适用于TestComponent - 它显示默认标题。

// main.ts
import { platformNativeScriptDynamic, NativeScriptModule } from "nativescript-angular/platform";
import { NgModule, Component } from "@angular/core";
import { Routes } from "@angular/router";
import { NativeScriptRouterModule } from "nativescript-angular/router";

@Component({
    template: `<page-router-outlet></page-router-outlet>`
})
export class AppComponent { }

@Component({
    template: `
        <ActionBar title="Home"></ActionBar>
        <StackLayout>
            <Label text="Home component" textWrap="true"></Label>
            <Button text="test" [nsRouterLink]="['/test']"></Button>
        </StackLayout>
    `
})
export class HomeComponent { }

@Component({
    template: `
        <ActionBar title="Test"></ActionBar>
        <StackLayout>
            <Label text="Test component" textWrap="true"></Label>
            <Button text="home" [nsRouterLink]="['/']"></Button>
        </StackLayout>
    `
})
export class TestComponent { }


const testRoutes: Routes = [
    {
        path: "test",
        component: TestComponent
    }
]

@NgModule({
    declarations: [TestComponent],
    imports: [
        NativeScriptRouterModule.forChild(testRoutes)
    ],
})
class TestComponentModule { }


const appRoutes: Routes = [
    {
        path: "",
        pathMatch: "full",
        component: HomeComponent
    }
]

@NgModule({
    declarations: [AppComponent, HomeComponent],
    bootstrap: [AppComponent],
    imports: [
        NativeScriptModule,
        NativeScriptRouterModule,
        NativeScriptRouterModule.forRoot(appRoutes),
        TestComponentModule
    ],
})
class AppComponentModule { }

platformNativeScriptDynamic().bootstrapModule(AppComponentModule);

Answer 1

有！您的配置似乎正在运行。虽然<page-router-outlet>标记在TestComponent中没有意义。这是一个简单的nativescript-angular应用程序，可正确更新操作栏：

// main.ts
import { platformNativeScriptDynamic, NativeScriptModule } from "nativescript-angular/platform";
import { NgModule, Component } from "@angular/core";
import { Routes } from "@angular/router";
import { NativeScriptRouterModule } from "nativescript-angular/router";

@Component({
    template: `<page-router-outlet></page-router-outlet>`
})
export class AppComponent { }

@Component({
    template: `
        <ActionBar title="Home"></ActionBar>
        <StackLayout>
            <Label text="Home component" textWrap="true"></Label>
            <Button text="test" [nsRouterLink]="['/test']"></Button>
        </StackLayout>
    `
})
export class HomeComponent { }

@Component({
    template: `
        <ActionBar title="Test"></ActionBar>
        <StackLayout>
            <Label text="Test component" textWrap="true"></Label>
            <Button text="home" [nsRouterLink]="['/']"></Button>
        </StackLayout>
    `
})
export class TestComponent {}

const routes: Routes = [
    {
        path: "",
        pathMatch: "full",
        component: HomeComponent
    },
    {
        path: "test",
        component: TestComponent
    }
]

@NgModule({
    declarations: [ AppComponent, HomeComponent, TestComponent ],
    bootstrap: [ AppComponent ],
    imports: [
        NativeScriptModule,
        NativeScriptRouterModule,
        NativeScriptRouterModule.forRoot(routes)
    ],
})
class AppComponentModule {}

platformNativeScriptDynamic().bootstrapModule(AppComponentModule);

Nativescript：无法覆盖模板

1 个答案: