Angular Material all modules use import { AppMaterialModule } from './app-material/app-material.module';

app-material.module.ts

import { NgModule } from '@angular/core';
import { CommonModule } from '@angular/common';
import {MatCheckboxModule} from '@angular/material';
import {MatButtonModule} from '@angular/material';
import {MatInputModule} from '@angular/material/input';
import {MatAutocompleteModule} from '@angular/material/autocomplete';
import {MatDatepickerModule} from '@angular/material/datepicker';
import {MatNativeDateModule} from '@angular/material';
import {MatFormFieldModule} from '@angular/material/form-field';
import {MatRadioModule} from '@angular/material/radio';
import {MatSelectModule} from '@angular/material/select';
import {MatSliderModule} from '@angular/material/slider';
import {MatSlideToggleModule} from '@angular/material/slide-toggle';
import {MatMenuModule} from '@angular/material/menu';
import {MatSidenavModule} from '@angular/material/sidenav';
import {MatToolbarModule} from '@angular/material/toolbar';
import {MatListModule} from '@angular/material/list';
import {MatGridListModule} from '@angular/material/grid-list';
import {MatCardModule} from '@angular/material/card';
import {MatStepperModule} from '@angular/material/stepper';
import {MatTabsModule} from '@angular/material/tabs';
import {MatExpansionModule} from '@angular/material/expansion';
import {MatButtonToggleModule} from '@angular/material/button-toggle';
import {MatChipsModule} from '@angular/material/chips';
import {MatIconModule} from '@angular/material/icon';
import {MatProgressSpinnerModule} from '@angular/material/progress-spinner';
import {MatProgressBarModule} from '@angular/material/progress-bar';
import {MatDialogModule} from '@angular/material/dialog';
import {MatTooltipModule} from '@angular/material/tooltip';
import {MatSnackBarModule} from '@angular/material/snack-bar';
import {MatTableModule} from '@angular/material/table';
import {MatSortModule} from '@angular/material/sort';
import {MatPaginatorModule} from '@angular/material/paginator';

@NgModule({
  declarations: [],
  imports: [
    CommonModule,
    MatCheckboxModule,
    MatButtonModule,
    MatInputModule,
    MatAutocompleteModule,
    MatDatepickerModule,
    MatNativeDateModule,
    MatFormFieldModule,
    MatRadioModule,
    MatSelectModule,
    MatSliderModule,
    MatSlideToggleModule,
    MatMenuModule,
    MatSidenavModule,
    MatToolbarModule,
    MatListModule,
    MatGridListModule,
    MatCardModule,
    MatStepperModule,
    MatTabsModule,
    MatExpansionModule,
    MatButtonToggleModule,
    MatChipsModule,
    MatIconModule,
    MatProgressSpinnerModule,
    MatProgressBarModule,
    MatDialogModule,
    MatTooltipModule,
    MatSnackBarModule,
    MatTableModule,
    MatSortModule,
    MatPaginatorModule,
  ],
  exports: [
    CommonModule,
    MatCheckboxModule,
    MatButtonModule,
    MatInputModule,
    MatAutocompleteModule,
    MatDatepickerModule,
    MatNativeDateModule,
    MatFormFieldModule,
    MatRadioModule,
    MatSelectModule,
    MatSliderModule,
    MatSlideToggleModule,
    MatMenuModule,
    MatSidenavModule,
    MatToolbarModule,
    MatListModule,
    MatGridListModule,
    MatCardModule,
    MatStepperModule,
    MatTabsModule,
    MatExpansionModule,
    MatButtonToggleModule,
    MatChipsModule,
    MatIconModule,
    MatProgressSpinnerModule,
    MatProgressBarModule,
    MatDialogModule,
    MatTooltipModule,
    MatSnackBarModule,
    MatTableModule,
    MatSortModule,
    MatPaginatorModule,
  ]
})
export class AppMaterialModule { }

I love this

I've used this GIST a few times now and find it really helpful, but there are a couple of missing imports (buttons and checkbox), I've updated this to use the spread operator removing duplication.

import { CommonModule } from '@angular/common';
import { NgModule } from '@angular/core';
import { MatAutocompleteModule } from '@angular/material/autocomplete';
import { MatButtonModule } from '@angular/material/button';
import { MatButtonToggleModule } from '@angular/material/button-toggle';
import { MatCardModule } from '@angular/material/card';
import { MatCheckboxModule } from '@angular/material/checkbox';
import { MatChipsModule } from '@angular/material/chips';
import { MatDatepickerModule } from '@angular/material/datepicker';
import { MatDialogModule } from '@angular/material/dialog';
import { MatExpansionModule } from '@angular/material/expansion';
import { MatFormFieldModule } from '@angular/material/form-field';
import { MatGridListModule } from '@angular/material/grid-list';
import { MatIconModule } from '@angular/material/icon';
import { MatInputModule } from '@angular/material/input';
import { MatListModule } from '@angular/material/list';
import { MatMenuModule } from '@angular/material/menu';
import { MatPaginatorModule } from '@angular/material/paginator';
import { MatProgressBarModule } from '@angular/material/progress-bar';
import { MatProgressSpinnerModule } from '@angular/material/progress-spinner';
import { MatRadioModule } from '@angular/material/radio';
import { MatSelectModule } from '@angular/material/select';
import { MatSidenavModule } from '@angular/material/sidenav';
import { MatSlideToggleModule } from '@angular/material/slide-toggle';
import { MatSliderModule } from '@angular/material/slider';
import { MatSnackBarModule } from '@angular/material/snack-bar';
import { MatSortModule } from '@angular/material/sort';
import { MatStepperModule } from '@angular/material/stepper';
import { MatTableModule } from '@angular/material/table';
import { MatTabsModule } from '@angular/material/tabs';
import { MatToolbarModule } from '@angular/material/toolbar';
import { MatTooltipModule } from '@angular/material/tooltip';

const MATERIAL = [
  MatCheckboxModule,
  MatCheckboxModule,
  MatButtonModule,
  MatInputModule,
  MatAutocompleteModule,
  MatDatepickerModule,
  MatFormFieldModule,
  MatRadioModule,
  MatSelectModule,
  MatSliderModule,
  MatSlideToggleModule,
  MatMenuModule,
  MatSidenavModule,
  MatToolbarModule,
  MatListModule,
  MatGridListModule,
  MatCardModule,
  MatStepperModule,
  MatTabsModule,
  MatExpansionModule,
  MatButtonToggleModule,
  MatChipsModule,
  MatIconModule,
  MatProgressSpinnerModule,
  MatProgressBarModule,
  MatDialogModule,
  MatTooltipModule,
  MatSnackBarModule,
  MatTableModule,
  MatSortModule,
  MatPaginatorModule,
];

@NgModule({
  declarations: [],
  imports: [CommonModule, ...MATERIAL],
  exports: [...MATERIAL],
})
export class SharedModule {}