my.getScreenOrientation

my.getScreenOrientation({
  success(res) {
    console.log('Current orientation:', res.orientation);
  }
});

Page({
  data: {
    isLandscape: false
  },

  onLoad() {
    this.checkOrientation();
    my.onScreenOrientationChange(this.handleOrientationChange);
  },

  checkOrientation() {
    my.getScreenOrientation({
      success: (res) => {
        const isLandscape = res.orientation.includes('landscape');
        this.setData({ isLandscape });
      }
    });
  },

  handleOrientationChange(res) {
    const isLandscape = res.orientation.includes('landscape');
    this.setData({ isLandscape });
  },

  onUnload() {
    my.offScreenOrientationChange(this.handleOrientationChange);
  }
});