Question

如何知道相机的地理标记功能是否开启？

此代码用于打开相机手机

Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
        fileUri = getOutputMediaFileUri(MEDIA_TYPE_IMAGE);


        intent.putExtra(MediaStore.EXTRA_OUTPUT, fileUri);
        // start the image capture Intent
        startActivityForResult(intent, CAMERA_CAPTURE_IMAGE_REQUEST_CODE);

Answer 1

您无法以编程方式检查此内容。您必须阅读拍摄照片的标签并手动检查GPS坐标，如果标签为空，则禁用地理标记。

您可以使用ExifInterface类从JPEG图像中读取EXIF元数据。以下是官方文档链接，解释了这一点：

http://developer.android.com/reference/android/media/ExifInterface.html

以下是可用于阅读标签的示例代码：

Bundle bundle = getIntent().getExtras();

if（null！= bundle）{ String filepath = bundle.getString（FILE_PATH_KEY）;

try {
    ExifInterface exif = new ExifInterface(filepath);
    StringBuilder builder = new StringBuilder();

    builder.append("Date & Time: " + getExifTag(exif, ExifInterface.TAG_DATETIME) + "\n\n");
    builder.append("Flash: " + getExifTag(exif, ExifInterface.TAG_FLASH) + "\n");
    builder.append("Focal Length: " + getExifTag(exif, ExifInterface.TAG_FOCAL_LENGTH) + "\n\n");
    builder.append("GPS Datestamp: " + getExifTag(exif, ExifInterface.TAG_FLASH) + "\n");
    builder.append("GPS Latitude: " + getExifTag(exif, ExifInterface.TAG_GPS_LATITUDE) + "\n");
    builder.append("GPS Latitude Ref: " + getExifTag(exif, ExifInterface.TAG_GPS_LATITUDE_REF) + "\n");
    builder.append("GPS Longitude: " + getExifTag(exif, ExifInterface.TAG_GPS_LONGITUDE) + "\n");
    builder.append("GPS Longitude Ref: " + getExifTag(exif, ExifInterface.TAG_GPS_LONGITUDE_REF) + "\n");
    builder.append("GPS Processing Method: " + getExifTag(exif, ExifInterface.TAG_GPS_PROCESSING_METHOD) + "\n");
    builder.append("GPS Timestamp: " + getExifTag(exif, ExifInterface.TAG_GPS_TIMESTAMP) + "\n\n");
    builder.append("Image Length: " + getExifTag(exif, ExifInterface.TAG_IMAGE_LENGTH) + "\n");
    builder.append("Image Width: " + getExifTag(exif, ExifInterface.TAG_IMAGE_WIDTH) + "\n\n");
    builder.append("Camera Make: " + getExifTag(exif, ExifInterface.TAG_MAKE) + "\n");
    builder.append("Camera Model: " + getExifTag(exif, ExifInterface.TAG_MODEL) + "\n");
    builder.append("Camera Orientation: " + getExifTag(exif, ExifInterface.TAG_ORIENTATION) + "\n");
    builder.append("Camera White Balance: " + getExifTag(exif, ExifInterface.TAG_WHITE_BALANCE) + "\n");

    builder = null;
} catch (IOException e) {
    e.printStackTrace();
}

}

android - 如何知道相机的地理标记功能是否开启？

1 个答案: