Use the Java class library to implement ExiFinterface support in Android: steps and skills

Use the Java class library to implement ExiFinterface support in Android: steps and skills ExiF (Exchangeable Image File Format) is a standard for storing image metadata.In Android development, you can use the ExiFinterface class library to read and edit the EXIF information of and edit pictures.This article will introduce how to use the Java class library in Android applications to achieve ExiFinterface support, and provide relevant programming code and configuration description. Step 1: Import the ExiFinterface class library First, you need to add the dependencies of the ExiFinterface class library to the Android project.You can add it to the Build.gradle file in the following way:: Add the following in Dependencies: groovy implementation 'androidx.exifinterface:exifinterface:1.3.3' Step 2: Read EXIF information You can read the EXIF information of the image file using the ExiFinterface class.The following is a simple sample code that demonstrates how to read the EXIF information of the image file and output it to the logcat: try { ExifInterface exifInterface = new ExifInterface(filePath); String date = exifInterface.getAttribute(ExifInterface.TAG_DATETIME); String make = exifInterface.getAttribute(ExifInterface.TAG_MAKE); String model = exifInterface.getAttribute(ExifInterface.TAG_MODEL); Log.d("ExifInfo", "Date: " + date); Log.d("ExifInfo", "Make: " + make); Log.d("ExifInfo", "Model: " + model); } catch (IOException e) { e.printStackTrace(); } In the above code, first create an EXIFINTERFACE object, the parameter is the path of the image file to be read.You can then use the getttribute () method to obtain a specific exif attribute.In this example, three attributes of the date, manufacturer and model are obtained, and they are printed into Logcat. Step 3: Edit EXIF information In addition to reading, the ExiFinterface class library also allows the EXIF information of the editing image file.The following is an example code that demonstrates how to modify the specific exif attribute of the image file: try { ExifInterface exifInterface = new ExifInterface(filePath); // Set the date attribute exifInterface.setAttribute(ExifInterface.TAG_DATETIME, "2022:01:01 12:00:00"); // Save the modified EXIF information exifInterface.saveAttributes(); } catch (IOException e) { e.printStackTrace(); } In the above example code, first create an ExiFinterface object, and set the value of the attribute through the settattribute () method.In this example, set the date attribute to "2022: 01: 01 12:00:00".Finally, call the saveattributes () method to save the modified ExiF information to the image file. Related configuration No special configuration, just add the dependencies of the ExiFinterface class library, you can use the ExiFinterface class in Android applications. Summarize This article introduces the steps and techniques of using the Java library in the Android application to implement the ExiFinterface support.By adding the dependencies of the ExiFinterface library, you can read and edit the EXIF information of the image file.The example code demonstrates how to read and modify the EXIF attribute and provide relevant configuration instructions.I hope this article will help you understand and apply the ExiFinterface class library.