version:1.9.4

fix:
update:作业页面完善

app/src/main/java/com/uiui/zyos/utils/OpenFileUtil.java

@@ -16,11 +16,17 @@ import androidx.core.content.FileProvider;
 
 import com.uiui.zyos.BuildConfig;
 
+import java.io.BufferedInputStream;
 import java.io.File;
+import java.io.FileInputStream;
+import java.io.FileNotFoundException;
+import java.io.IOException;
+import java.net.URLConnection;
 import java.util.HashMap;
 import java.util.Locale;
 
 public class OpenFileUtil {
+    private static final String TAG = "OpenFileUtil";
 
     public static void openFile(Context context, String filePath) {
         File file = new File(filePath);
@@ -63,6 +69,20 @@ public class OpenFileUtil {
                 type = map.get(end);
             }
         }
+        Log.e(TAG, "getMimeTypeFromFile: " + type);
+        Log.e(TAG, "getMimeType: " + getMimeType(file.getAbsolutePath()));
+        return type;
+    }
+
+    private static String getMimeType(String filePath) {
+        String type = "*/*";
+        try {
+            FileInputStream inputFile = new FileInputStream(filePath);
+            type = URLConnection.guessContentTypeFromStream(new BufferedInputStream(inputFile));
+            return type;
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
         return type;
     }
 
@@ -75,6 +95,7 @@ public class OpenFileUtil {
          */
         public static HashMap<String, String> getMimeMap() {
             if (mapSimple.size() == 0) {
+                mapSimple.put("", "*/*");
                 mapSimple.put(".3gp", "video/3gpp");
                 mapSimple.put(".apk", "application/vnd.android.package-archive");
                 mapSimple.put(".asf", "video/x-ms-asf");
@@ -142,7 +163,6 @@ public class OpenFileUtil {
                 mapSimple.put(".xlsx", "application/vnd.ms-excel");
                 mapSimple.put(".z", "application/x-compress");
                 mapSimple.put(".zip", "application/zip");
-                mapSimple.put("", "*/*");
             }
             return mapSimple;
         }