小程序相册授权后保存图片到相册

  //保存图片
saveImgToAlbum: function () {
const _this = this;
console.log('has.this.data.tempFilePath', _this.data.tempFilePath);
if (!!_this.data.tempFilePath) {
tt.saveImageToPhotosAlbum({
filePath: _this.data.tempFilePath,
success(rres) {
console.log(`tt.saveImageToPhotosAlbum.success`, rres);
//成功提示
          tt.showToast({
title: "图片结果保存成功",
duration: 3000,
icon: 'success',
success(tres) {
console.log(`${tres}`);
},
fail(tres) {
console.log(`showToast调用失败`, tres);
}
});
},
complete(rres) {
console.log(`tt.saveImageToPhotosAlbum.complete`, rres);
},
fail(rres) {
console.log(`tt.saveImageToPhotosAlbum.fail`, rres);
}
});
} else {
console.error('this.data.tempFilePath.isEmpty', _this.data.tempFilePath);
}
},
//相册授权
saveImgAuth: function () {
const _this = this;
tt.getSetting({
success: function (res) {
console.log('tt.getSetting.success', res);
console.log('is.scope.album', res.authSetting['scope.album']);
if (res.authSetting['scope.album'] && res.authSetting['scope.album'] == true) {//已授权
console.log('has.scope.album');
console.log('start.saveImg');
//保存图片
          _this.saveImgToAlbum();
} else {//未授权
console.error('non.scope.album');
console.log('start.tt.authorize');
//授权
          tt.authorize({
scope: "scope.album",
success(rres) {
// 用户同意授权
console.log('tt.authorize.success', rres);
console.log('start.saveImg');
//保存图片
              _this.saveImgToAlbum();
},
complete(rres) {
console.log('tt.authorize.complete', rres);
},
fail(rres) {
// 用户取消授权 或 取消过授权
console.error('tt.authorize.fail', rres);
tt.showModal({
title: "系统提示",
content: "打开相册权限才能保存图片哦！",
success(mres) {
if (mres.confirm) {
// console.log("confirm, continued");
console.log('start.tt.openSetting');
// 取消过授权需要打开设置页面
                    tt.openSetting({
success: function (rrres) {
console.log('tt.openSetting.success', rrres);
if (rrres.authSetting['scope.album'] && rrres.authSetting['scope.album'] == true) {//已授权
console.log('start.saveImg');
//保存图片
                          _this.saveImgToAlbum();
}
},
complete: function (rrres) {
console.log('tt.openSetting.complete', rrres);
},
fail: function (rrres) {
console.log('tt.openSetting.fail', rrres);
},
});
} else if (mres.cancel) {
// console.log("cancel, cold");
//成功提示
                    tt.showToast({
title: "图片结果保存失败",
duration: 3000,
icon: 'fail',
success(tres) {
console.log(`${tres}`);
},
fail(tres) {
console.log(`showToast调用失败`, tres);
}
});
} else {
// what happend?
                  }
},
fail(mres) {
console.log(`showModal调用失败`);
}
});
},
});
}
},
complete: function (res) {
console.log('tt.getSetting.complete', res);
},
fail: function (res) {
console.error('tt.getSetting.fail', res);
},
});
},