May 18, 2021 WeChat Mini Program Development Document
Get picture information. The network picture needs to be configured with the download domain name before it can take effect.
| Property | Type | The default | Required | Description |
|---|---|---|---|---|
| Src | string | Is | The path of the picture, supporting the network path, the local path, and the code pack path | |
| success | function | Whether | The interface calls a successful callback function | |
| fail | function | Whether | The interface calls the failed callback function | |
| complete | function | Whether | Callback function at end of interface call (call succeeds, fails are executed) |
| Property | Type | Description | The lowest version |
|---|---|---|---|
| width | number | The original width of the picture, in px. Rotation is not considered. | |
| height | number | The original height of the picture, in px. Rotation is not considered. | |
| path | string | The local path of the picture | |
| orientation | string | The orientation of the device when taking a picture | 1.9.90 |
| type | string | Picture format | 1.9.90 |
The legal value of res.orientation
| Value | Description | The lowest version |
|---|---|---|
| up | The default orientation (phone holding a photo), corresponding to 1 in Exif. or no orientation information. | |
| up-mirrored | Same up, but mirror flip, corresponding to 2 in Exif | |
| down | Rotate 180 degrees to 3 in Exif | |
| down-mirrored | same down, but mirror flip, corresponding to 4 in Exif | |
| left-mirrored | Same left, but mirror flip, corresponding to 5 in Exif | |
| right | Rotate 90 degrees clockwise to 6 in Exif | |
| right-mirrored | Same right, but mirror flip, corresponding to 7 in Exif | |
| left | Rotate 90 degrees counterclockwise to 8 in Exif |
wx.getImageInfo({
src: 'images/a.jpg',
success (res) {
console.log(res.width)
console.log(res.height)
}
})
wx.chooseImage({
success (res) {
wx.getImageInfo({
src: res.tempFilePaths[0],
success (res) {
console.log(res.width)
console.log(res.height)
}
})
}
})