在Ionic 2上录制和播放音频可以通过使用Cordova插件来实现。以下是一种实现方法:
npm install -g ionic cordova
ionic start audioApp blank
cd audioApp
ionic cordova plugin add cordova-plugin-media
import { Injectable } from '@angular/core';
import { Media, MediaObject } from '@ionic-native/media';
import { Platform } from 'ionic-angular';
@Injectable()
export class AudioService {
private media: MediaObject;
constructor(private mediaPlugin: Media, private platform: Platform) {
this.platform.ready().then(() => {
this.media = this.mediaPlugin.create(this.getMediaFilePath());
});
}
private getMediaFilePath(): string {
if (this.platform.is('ios')) {
return this.mediaPlugin.documentsDirectory.replace(/file:\/\//g, '') + 'audio.wav';
} else if (this.platform.is('android')) {
return this.mediaPlugin.externalDataDirectory + 'audio.wav';
}
}
startRecording(): void {
this.media.startRecord();
}
stopRecording(): void {
this.media.stopRecord();
}
playRecording(): void {
this.media.play();
}
stopPlaying(): void {
this.media.stop();
}
}
import { AudioService } from './audio.service';
@NgModule({
// ...
providers: [
// ...
AudioService
]
})
export class AppModule { }
import { Component } from '@angular/core';
import { AudioService } from '../../audio.service';
@Component({
selector: 'page-home',
templateUrl: 'home.html'
})
export class HomePage {
constructor(private audioService: AudioService) {}
startRecording(): void {
this.audioService.startRecording();
}
stopRecording(): void {
this.audioService.stopRecording();
}
playRecording(): void {
this.audioService.playRecording();
}
stopPlaying(): void {
this.audioService.stopPlaying();
}
}
<ion-header>
<ion-navbar>
<ion-title>
Audio App
</ion-title>
</ion-navbar>
</ion-header>
<ion-content padding>
<ion-button (click)="startRecording()">Start Recording</ion-button>
<ion-button (click)="stopRecording()">Stop Recording</ion-button>
<ion-button (click)="playRecording()">Play Recording</ion-button>
<ion-button (click)="stopPlaying()">Stop Playing</ion-button>
</ion-content>
现在你可以在Ionic 2应用中录制和播放音频了。当点击"Start Recording"按钮时,音频录制会开始;点击"Stop Recording"按钮时,录制会停止并保存音频文件;点击"Play Recording"按钮时,录制的音频会开始播放;点击"Stop Playing"按钮时,播放会停止。
请注意,上述代码中使用了Cordova插件cordova-plugin-media来处理音频录制和播放。如果你需要更多高级的音频处理功能,可以考虑使用其他Cordova插件或自定义插件来满足需求。
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