实现获取文件md5码的功能,使用到的库是:implementation group: 'commons-codec', name: 'commons-codec', version: '1.15'

CloudKey/app/build.gradle

@@ -35,6 +35,7 @@ dependencies {
     implementation 'androidx.constraintlayout:constraintlayout:1.1.3'
     implementation 'androidx.navigation:navigation-fragment:2.2.2'
     implementation 'androidx.navigation:navigation-ui:2.2.2'
+    implementation group: 'commons-codec', name: 'commons-codec', version: '1.15'
     testImplementation 'junit:junit:4.+'
     androidTestImplementation 'androidx.test.ext:junit:1.1.1'
     androidTestImplementation 'androidx.test.espresso:espresso-core:3.2.0'

CloudKey/app/src/main/java/com/thankvinci/CloudKey/Files/FileAdapter.java

@@ -15,6 +15,10 @@ import androidx.recyclerview.widget.RecyclerView;
 import com.thankvinci.CloudKey.Fragment.FileManageFragment;
 import com.thankvinci.CloudKey.R;
 
+import org.apache.commons.codec.digest.DigestUtils;
+
+import java.io.FileInputStream;
+import java.io.IOException;
 import java.util.List;
 
 public class FileAdapter extends RecyclerView.Adapter<FileAdapter.ViewHolder> {
@@ -51,18 +55,27 @@ public class FileAdapter extends RecyclerView.Adapter<FileAdapter.ViewHolder> {
                 int position = holder.getAdapterPosition();
                 FileItem fitem = fileList.get(position);
                 //Toast.makeText(v.getContext(),fitem.getName(),Toast.LENGTH_SHORT).show();
+                StringBuilder builder = new StringBuilder();
+                builder.append(((FileManageFragment)fragment).getDir());
+                builder.append("/");
+                builder.append(fitem.getName());
                 if(fitem.isDir()){
-                    StringBuilder builder = new StringBuilder();
-                    builder.append(((FileManageFragment)fragment).getDir());
-
-                    builder.append("/");
-                    builder.append(fitem.getName());
                     data.putString("dir",builder.toString());
                     data.putBoolean("isRoot",false);
-                    Toast.makeText(v.getContext(),data.getString("dir"),Toast.LENGTH_SHORT).show();
+                    //Toast.makeText(v.getContext(),data.getString("dir"),Toast.LENGTH_SHORT).show();
                     Navigation.findNavController(v).navigate(R.id.action_openDir,data);
                 }else{
-                    Toast.makeText(v.getContext(),"没有打开除文件夹和压缩包以外的功能",Toast.LENGTH_SHORT).show();
+                    //Toast.makeText(v.getContext(),fitem.getName()+" "+fitem.isCompress(),Toast.LENGTH_SHORT).show();
+                    if (fitem.isCompress()){
+                        try {
+                            String filemd5 = DigestUtils.md5Hex(new FileInputStream(builder.toString()));
+                            Toast.makeText(v.getContext(),"MD5码为:\n"+filemd5,Toast.LENGTH_LONG).show();
+                        } catch (IOException e) {
+                            e.printStackTrace();
+                        }
+                    }else{
+                        Toast.makeText(v.getContext(),"没有打开除文件夹和压缩包以外的功能",Toast.LENGTH_SHORT).show();
+                    }
                 }
 
             }

CloudKey/app/src/main/java/com/thankvinci/CloudKey/Files/FileItem.java

@@ -13,6 +13,7 @@ public class FileItem {
     public FileItem(String name, boolean type, boolean isZip){
         this.type = type;
         this.name = name;
+        this.isZip = isZip;
         if(type){
             if(isZip){
                 icon = R.drawable.zip;
@@ -32,7 +33,7 @@ public class FileItem {
     public boolean isDir(){
         return !type;
     }
-    public boolean isZip(){
+    public boolean isCompress(){
         return isZip;
     }
 }

CloudKey/app/src/main/java/com/thankvinci/CloudKey/Fragment/FileManageFragment.java

@@ -55,6 +55,8 @@ public class FileManageFragment extends Fragment {
             dir = data.getString("dir");
             Toast.makeText(getActivity(),dir,Toast.LENGTH_SHORT).show();
         }
+        path_edit.setText(dir);
+        path_edit.setSelection(dir.length());
         loadDirectory();
     }
     public String getDir(){
@@ -64,7 +66,6 @@ public class FileManageFragment extends Fragment {
         ActivityCompat.requestPermissions(getActivity(), new String[]{ //运行时权限
                 "android.permission.WRITE_EXTERNAL_STORAGE",
                 "android.permission.READ_EXTERNAL_STORAGE"}, 1);
-        path_edit.setText(dir);
         File directory = new File(dir);
         files = directory.listFiles();
         if (files == null){
@@ -84,7 +85,6 @@ public class FileManageFragment extends Fragment {
         for(int i = 0;i < files.length;i++){
             filename = files[i].getName();
             isFile = files[i].isFile();
-            index = filename.indexOf(".");
             if (isFile){
                 lastIndex = filename.lastIndexOf(".");
                 if(lastIndex == -1){
@@ -100,6 +100,7 @@ public class FileManageFragment extends Fragment {
             }else{
                 isZip = false;
             }
+            index = filename.indexOf(".");
             if(index != 0){ //隐藏.开头的隐藏文件
                 FileItem fitem = new FileItem(filename,isFile,isZip);
                 fileItemList.add(fitem);

CloudKey/app/src/main/res/layout/filemanage_fragment.xml

@@ -15,6 +15,7 @@
         android:textColor="@color/grey"
         android:textSize="14dp"
         android:singleLine="true"
+        android:gravity="left"
         tools:ignore="MissingConstraints" />
 
     <androidx.recyclerview.widget.RecyclerView

开发历程.md

@@ -219,7 +219,7 @@ public static final View.OnClickListener createNavigateOnClickListener(@IdRes in
 
 返回一个OnClickListener,但是我是分文件和目录的,这个方法又不能重写,然后又找到了https://blog.csdn.net/m0_46962786/article/details/109119746这篇文章,这里面是在普通的OnClickListener中获取当前的Navigation的controller,然后调用navigate()方法去触发action和传递参数
 
-**2021/6/9**
+**2021/6/11**
 
 将loadRoot和loadDirectory两个方法合并为loadDirectory(),本质上都是加载一个目录