Encapsulate a tool to delete useless resource files at will
Train of thought:
- Export a txt file with lint log through lint command
- Filter out all useless resource files by reading the "[UnusedResources]" field in it
-
Files can be deleted directly
- drawable-mdpi
- drawable-hdpi
- drawable-xhdpi
- drawable-xxhdpi
- drawable
- layout
- anim
- color
- raw
- xml- Depending on the situation, delete a line of values in the file
- arrays
- colors
- dimens
- strings
- config_main_tab
- prompt_message
- styles
- syle_base_view
- teaching_strings
- toast
- Depending on the situation, delete a line of values in the file
(1) First, you need to enter the tools in the sdk
` D:\develop\AndroidStudio\Android\sdk\tools\lint.bat `
(2) Input in cmd
` lint H:\android_workspace\smilecampus_git\SmileCampus >C:\Users\Administrator\Desktop\master_lint_log.txt`
(3) Read the exported lint log file through java code (IO stream)
By filtering "[UnusedResources]" in the resource file, determine which folder the resource file is in (delete the file or delete a line in the file)
Code three classes:
Class Constant
public class Constant {
public static final String UnusedResources = "[UnusedResources]";
public static final String drawable_mdpi = "drawable-mdpi";
public static final String drawable_hdpi = "drawable-hdpi";
public static final String drawable_xhdpi = "drawable-xhdpi";
public static final String drawable_xxhdpi = "drawable-xxhdpi";
public static final String drawable = "drawable";
public static final String anim = "anim";
public static final String layout = "layout";
public static final String color = "color";
public static final String raw = "raw";//Barrage
public static final String xml = "xml";//No change
public static final String values = "values";
/**
* values The following configuration file
*/
public static final String arrays = "arrays";
public static final String colors = "colors";
public static final String dimens = "dimens";
public static final String strings = "strings";
public static final String config_main_tab = "config_main_tab";
public static final String prompt_message = "prompt_message";
public static final String styles = "styles";
public static final String syle_base_view = "syle_base_view";
public static final String teaching_strings = "teaching_strings";
public static final String toast = "toast";
}CompactAndroidCodeUtil class
import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.util.List;
public class CompactAndroidCodeUtil {
public static void cleanUnUseResourse(String projectPath, String lintResultPath, List<String> resources) {
BufferedReader br = null;
BufferedWriter bw = null;
try {
FileReader fr = new FileReader(lintResultPath);
br = new BufferedReader(fr);
String s = br.readLine();
//Filter out the lint file window and a copy that were originally exported, and write "[UnusedResources]" into the copy file
String lintResultTranscriptPath = createLintResultTranscript(lintResultPath);
File file = new File(lintResultTranscriptPath);
if(!file.exists()) {
file.createNewFile();
}
bw = new BufferedWriter(new FileWriter(file));
while (null != s) {
// Judge whether a line contains
if (s.contains(Constant.UnusedResources)) {
// res\color\org_apply_text_color_selector.xml:2: Error: The
// resource R.string.lepi_un_sub_any_service appears to be
// unused
// Intercept the first one: in front of it is the entire path to determine what folder the file is and the resource file under it
int end = s.indexOf(":");
if (end > 0) {
String subPath = s.substring(0, end);
// Test
int startDiagonal = subPath.indexOf("\\");
String temp = subPath.substring(startDiagonal + 1);
int secondDiagonal = temp.indexOf("\\");
String resource = temp.substring(0 , secondDiagonal);
if(resource.equals(Constant.values)) {//Filter out the folders under values
String temp1 = temp.substring(secondDiagonal + 1);
int thirdDiagonal = temp1.indexOf(".");
resource = temp1.substring(0, thirdDiagonal);
// if (!resources.contains(resource)) {
// resources.add(resource);
// }
} else {
if (resources.contains(resource)) {//If resource is in resources, delete the file
//Write compliant resource files to replica files
bw.write(s);
bw.newLine();//Line feed
bw.flush();
String deleteFilePath = projectPath + "\\" + subPath;
if(deleteFile(deleteFilePath)){
System.out.println("File deleted successfully");
}
// resources.add(resource);
}
}
}
}
s = br.readLine();
}
} catch (FileNotFoundException e) {
System.out.println("File not found!");
} catch (IOException e) {
System.out.println("Read failed!");
} finally {
try {
br.close();
bw.close();
} catch (IOException e) {
System.out.println("Failed to close stream!");
}
for(String res : resources) {
System.out.println(res);
}
}
}
/**
* @param lintResultPath
* @return Create a copy of the file to
*/
public static String createLintResultTranscript(String lintResultPath) {
String lintResultTranscriptPath = "";
int index = lintResultPath.indexOf(".");
String before = lintResultPath.substring(0, index);
String after = lintResultPath.substring(index);
lintResultTranscriptPath = before + "-Copy 1" + after;
return lintResultTranscriptPath;
}
/**
* @param deletePath
* @return Delete files
*/
public static boolean deleteFile(String deletePath) {
// A regular expression that verifies that the string is the correct pathname
String matches = "[A-Za-z]:\\\\[^:?\"><*]*";
boolean flag = false;
// Judge whether it is correct by the return value of sPath.matches(matches) method
// sPath is the path string
if(deletePath.matches(matches)) {
File file = new File(deletePath);
// Delete if the path is file and not empty
if (file.isFile() && file.exists()) {
file.delete();
flag = true;
}
}
return flag;
}
}CleanResource class
import java.util.ArrayList;
import java.util.List;
/**
* @author Wisdozzh
* Clean up useless resource files in the project
*
*/
public class CleanResource {
public static void main(String[] args) {
String projectPath = "H:\\android_workspace\\smilecampus_git\\SmileCampus";
String lintResultPath = "C:\\Users\\Administrator\\Desktop\\master_lint_log.txt";
//Only some files and lines in the files are deleted
List<String> resourses = new ArrayList<>();
resourses.add(Constant.drawable_mdpi);//ok
resourses.add(Constant.drawable_hdpi);//ok
resourses.add(Constant.drawable_xhdpi);//ok
resourses.add(Constant.drawable_xxhdpi);//ok
resourses.add(Constant.drawable);
resourses.add(Constant.layout);
// resourses.add(Constant.color);
//Delete one line of these things
resourses.add(Constant.arrays);
resourses.add(Constant.colors);
resourses.add(Constant.dimens);
resourses.add(Constant.strings);
CompactAndroidCodeUtil.cleanUnUseResourse(projectPath, lintResultPath, resourses);
}
}(4) The research has come to fruition
Now just delete drawable MDPI, drawable hdpi, drawable xhdpi, drawable, layout, and a little style
(5) Can be optimized (to be optimized later)
Under anim, color, raw, xml and values, select arrays, colors, dimens ions, strings, config > main tab, prompt > message, styles, style > base > view, teaching > strings, toast
Delete the useless resource file