android – 使用Ionic 3将文件保存到Downloads目录

我知道这个链接：https://cordova.apache.org/docs/en/latest/reference/cordova-plugin-file/#where-to-store-files

但我想将文件保存在Downloads目录中.这可以使用Ionic在任何路径中保存文件吗？如果是这样,请分享这个例子.

这是代码：

downloadImage(image) {

this.platform.ready().then(() => {

  const fileTransfer: TransferObject = this.transfer.create();

  const imageLocation = `${cordova.file.applicationDirectory}www/assets/img/${image}`;

  fileTransfer.download(imageLocation, cordova.file.externalDataDirectory + image).then((entry) => {

    const alertSuccess = this.alertCtrl.create({
      title: `Download Succeeded!`,
      subTitle: `${image} was successfully downloaded to: ${entry.toURL()}`,
      buttons: ['Ok']
    });

    alertSuccess.present();

  }, (error) => {

    const alertFailure = this.alertCtrl.create({
      title: `Download Failed!`,
      subTitle: `${image} was not successfully downloaded. Error code: ${error.code}`,
      buttons: ['Ok']
    });

    alertFailure.present();

  });

});

}

基本上我想将文件保存在用户可见的位置.

解决方法:

要将文件下载到下载目录,您需要使用Cordova文件和FileTransfer插件.

import { File } from '@ionic-native/file';
import { FileTransfer } from '@ionic-native/file-transfer';

constructor(private transfer: FileTransfer) { }

fileTransfer: FileTransferObject = this.transfer.create();

//Use your File Url and name

downloadFile(file) {
  // Some Loading
  this.fileTransfer.download(url, this.file.externalRootDirectory + 
  '/Download/' + file).then(response => {
  console.log(response);
  this.dismissLoading();
  this.presentToast('File has been downloaded to the Downloads folder. View 
  it..')
  })
  .catch(err => {
    this.dismissLoading();
    console.log(err)
  });
}

希望能帮助到你.