uniapp保存视频到相册,权限校验,适配app、h5、小程序

保存视频
export function saveVideo() {
	// #ifdef APP-PLUS
	saveVideoAPP(...arguments)
	// #endif

	// #ifdef H5
	saveVideoH5(...arguments)
	// #endif

	// #ifdef MP-WEIXIN
	saveVideoWeiXin(...arguments)
	// #endif
}

微信小程序

function saveVideoWeiXin(url) {
	uni.showLoading({
		title: '保存中...',
		mask: true // 可选参数，设置为true时阻止用户操作
	})
	//提前发起授权申请
	wx.authorize({
		scope: 'scope.writePhotosAlbum',
		success: res => {
			console.log("授权成功---");
			wx.getSetting({
				withSubscriptions: true,
				success: res => {
					console.info(res.authSetting);
					if (res.authSetting['scope.writePhotosAlbum']) {
						wx.downloadFile({
							url,
							header: {
								'content-type': 'application/json'
							},

							success: res => {
								console.log(res, '成功');
								uni.showToast({
									icon: "none",
									title: "视频已保存到相册"