Angular Material Module Integration
This challenge focuses on a fundamental aspect of Angular development: integrating Angular Material components into an application. You will create a dedicated Angular module that imports and exports the necessary Material modules, making them readily available for use across your application's components. This promotes reusability and maintainability by centralizing Material component dependencies.
Problem Description
Your task is to create a new Angular module named SharedMaterialModule. This module should be responsible for importing common Angular Material modules that are likely to be used across multiple parts of your application. Furthermore, it should export these imported modules so that other modules can import SharedMaterialModule and gain access to the Material components without having to import them individually.
Key Requirements:
- Create a new TypeScript file (e.g.,
shared-material.module.ts). - Define an Angular module named
SharedMaterialModule. - Import the following Angular Material modules into
SharedMaterialModule:MatButtonModuleMatIconModuleMatToolbarModuleMatSidenavModuleMatListModuleMatCardModuleMatFormFieldModuleMatInputModuleMatDialogModule
- Export all the imported Material modules from
SharedMaterialModule. - Ensure
SharedMaterialModuleitself is anNgModule.
Expected Behavior:
When another Angular module (e.g., AppModule or a feature module) imports SharedMaterialModule, all the components, directives, and pipes provided by the imported Material modules (MatButtonModule, MatIconModule, etc.) should become available for use within the components of that importing module.
Edge Cases:
- Consider the scenario where a component might need a Material component not included in the initial list. While not required for this specific challenge, a good design would allow for easy extension.
- Ensure the module is correctly declared and imported in your application's root module (e.g.,
app.module.ts) for demonstration purposes.
Examples
Example 1: Module Definition
// shared-material.module.ts
import { NgModule } from '@angular/core';
import { CommonModule } from '@angular/common'; // Often needed for Material components
// Import Angular Material modules
import { MatButtonModule } from '@angular/material/button';
import { MatIconModule } from '@angular/material/icon';
import { MatToolbarModule } from '@angular/material/toolbar';
import { MatSidenavModule } from '@angular/material/sidenav';
import { MatListModule } from '@angular/material/list';
import { MatCardModule } from '@angular/material/card';
import { MatFormFieldModule } from '@angular/material/form-field';
import { MatInputModule } from '@angular/material/input';
import { MatDialogModule } from '@angular/material/dialog';
@NgModule({
declarations: [],
imports: [
CommonModule,
MatButtonModule,
MatIconModule,
MatToolbarModule,
MatSidenavModule,
MatListModule,
MatCardModule,
MatFormFieldModule,
MatInputModule,
MatDialogModule
],
exports: [
MatButtonModule,
MatIconModule,
MatToolbarModule,
MatSidenavModule,
MatListModule,
MatCardModule,
MatFormFieldModule,
MatInputModule,
MatDialogModule
]
})
export class SharedMaterialModule { }
Explanation: This code defines the SharedMaterialModule as requested, importing and exporting the specified Material modules. CommonModule is also imported as it's a prerequisite for many Angular Material components.
Example 2: Usage in Another Module
// app.module.ts (or a feature module)
import { NgModule } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { BrowserAnimationsModule } from '@angular/platform-browser/animations'; // Required for Material animations
import { AppComponent } from './app.component';
import { SharedMaterialModule } from './shared-material.module'; // Import our custom module
@NgModule({
declarations: [
AppComponent
],
imports: [
BrowserModule,
BrowserAnimationsModule, // Important for Angular Material
SharedMaterialModule // Now we have access to all exported Material components
],
providers: [],
bootstrap: [AppComponent]
})
export class AppModule { }
Explanation: Here, AppModule imports SharedMaterialModule. This means any component declared within AppModule can now use <button mat-button>, <mat-toolbar>, <mat-card>, etc., without needing to import MatButtonModule directly into AppModule.
Example 3: Component Usage (Demonstration of Success)
Imagine app.component.html:
<button mat-raised-button color="primary">Click Me!</button>
<mat-card>
<mat-card-title>Welcome</mat-card-title>
<mat-card-content>This card uses Angular Material.</mat-card-content>
</mat-card>
Explanation: This HTML snippet demonstrates that a component can successfully use Angular Material components (like mat-raised-button and mat-card) because the SharedMaterialModule has been imported into its containing module.
Constraints
- Your solution must be written in TypeScript.
- You are expected to use the
@angular/materiallibrary. - The module name must be exactly
SharedMaterialModule. - The specific Material modules listed in the Problem Description must be imported and exported.
Notes
- Remember to install Angular Material in your project if you haven't already:
ng add @angular/material. - The
BrowserAnimationsModuleis typically required in your rootAppModulefor Angular Material's animations to work correctly. - Think about how you would extend this module in the future if you needed to add more Material components or custom shared components.
- The
CommonModuleis often a prerequisite for many Angular Material components to function correctly, so it's good practice to include it in theimportsarray.