ngx-bootstrap tooltip component provides a easy to use and highly configurable Tooltip component.

TooltipDirective

selector

• [tooltip], [tooltipHtml]

Inputs

• adaptivePosition − boolean, sets disable adaptive position.

• container − string, A selector specifying the element the tooltip should be appended to.

• containerClass − string, Css class for tooltip container.

• delay − number, Delay before showing the tooltip.

• isDisabled − boolean, Allows to disable tooltip.

• isOpen − boolean, Returns whether or not the tooltip is currently being shown.

• placement − string, Placement of a tooltip. Accepts: “top”, “bottom”, “left”, “right”.

• tooltip − string | TemplateRef<any>, Content to be displayed as tooltip.

• tooltipAnimation − boolean, default: true.

• tooltipAppendToBody − boolean.

• tooltipClass − string.

• tooltipContext − any.

• tooltipEnable − boolean.

• tooltipFadeDuration − number, default: 150.

• tooltipHtml − string | TemplateRef<any>.

• tooltipIsOpen − boolean.

• tooltipPlacement − string

• tooltipPopupDelay − number

• tooltipTrigger − string | string[]

• triggers − string, Specifies events that should trigger. Supports a space separated list of event names.

Outputs

• onHidden − Emits an event when the tooltip is hidden.

• onShown − Emits an event when the tooltip is shown.

• tooltipChange − Fired when tooltip content changes.

• tooltipStateChanged − Fired when tooltip state changes.

Example

As we”re going to use Tooltip, We”ve to update app.module.ts used in ngx-bootstrap TimePicker chapter to use TooltipModule.

Update app.module.ts to use the TooltipModule.

app.module.ts

import { BrowserModule } from ''@angular/platform-browser'';
import { NgModule } from ''@angular/core'';
import { BrowserAnimationsModule } from ''@angular/platform-browser/animations'';
import { AppComponent } from ''./app.component'';
import { TestComponent } from ''./test/test.component'';
import { AccordionModule } from ''ngx-bootstrap/accordion'';
import { AlertModule,AlertConfig } from ''ngx-bootstrap/alert'';
import { ButtonsModule } from ''ngx-bootstrap/buttons'';
import { FormsModule } from ''@angular/forms'';
import { CarouselModule } from ''ngx-bootstrap/carousel'';
import { CollapseModule } from ''ngx-bootstrap/collapse'';
import { BsDatepickerModule, BsDatepickerConfig } from ''ngx-bootstrap/datepicker'';
import { BsDropdownModule,BsDropdownConfig } from ''ngx-bootstrap/dropdown'';
import { PaginationModule,PaginationConfig } from ''ngx-bootstrap/pagination'';
import { PopoverModule, PopoverConfig } from ''ngx-bootstrap/popover'';
import { ProgressbarModule,ProgressbarConfig } from ''ngx-bootstrap/progressbar'';
import { RatingModule, RatingConfig } from ''ngx-bootstrap/rating'';
import { SortableModule, DraggableItemService } from ''ngx-bootstrap/sortable'';
import { TabsModule, TabsetConfig } from ''ngx-bootstrap/tabs'';
import { TimepickerModule } from ''ngx-bootstrap/timepicker'';
import { TooltipModule  } from ''ngx-bootstrap/tooltip'';

@NgModule({
   declarations: [
      AppComponent,
      TestComponent
   ],
   imports: [
      BrowserAnimationsModule,
      BrowserModule,
      AccordionModule,
      AlertModule,
      ButtonsModule,
      FormsModule,
      CarouselModule,
      CollapseModule,
      BsDatepickerModule.forRoot(),
      BsDropdownModule,
      ModalModule,
      PaginationModule,
      PopoverModule,
      ProgressbarModule,
      RatingModule,
      SortableModule,
      TabsModule,
      TimepickerModule.forRoot(),
      TooltipModule.forRoot()
   ],
   providers: [AlertConfig, 
      BsDatepickerConfig, 
      BsDropdownConfig,
      BsModalService,
      PaginationConfig,
      ProgressbarConfig,
      RatingConfig,
      DraggableItemService,
      TabsetConfig],
   bootstrap: [AppComponent]
})
export class AppModule { }

Update test.component.html to use the timepicker component.

test.component.html

<timepicker [(ngModel)]="time"></timepicker>
<pre class="alert alert-info">Time is: {{time}}</pre>

<timepicker [(ngModel)]="time" [showMeridian]="false"></timepicker>
<pre class="alert alert-info">Time is: {{time}}</pre>

Update test.component.ts for corresponding variables and methods.

test.component.ts

import { Component, OnInit } from ''@angular/core'';

@Component({
   selector: ''app-test'',
   templateUrl: ''./test.component.html'',
   styleUrls: [''./test.component.css'']
})
export class TestComponent implements OnInit {
   time: Date = new Date();
   constructor() {}
   ngOnInit(): void {
   } 
}

Build and Serve

Run the following command to start the angular server.

ng serve

Once server is up and running. Open http://localhost:4200. Click on Open modal button and verify the following output.