Better temp file management

BeWoPlanerChat/bewoplaner-chat-android/app/src/main/java/de/beyondsoft/ownchat/page/chat/ChatPresenter.java

@@ -427,7 +427,8 @@ public class ChatPresenter extends MVPAbstractPresenter<ChatView> implements Cha
             return;
         }
 
-        String tmpFileLocation = mContext.getExternalFilesDir(null) + "/tmp_" + file.getName();
+        String tmpFileLocation = FileUtils.getTmpFilesDir(mContext) + "/tmp_" + file.getName();
+        FileUtils.clearTmpFilesDir(mContext);
 
         String[] split = file.getAbsolutePath().split("/");
 

BeWoPlanerChat/bewoplaner-chat-android/app/src/main/java/de/beyondsoft/ownchat/utils/Constants.java

@@ -30,4 +30,6 @@ public interface Constants {
     String MIME_TYPE_JPEG = "image/jpeg";
     String MIME_TYPE_PNG = "image/png";
     String MIME_TYPE_GIF = "image/gif";
+
+    String TMP_FILE_DIR = "tmp_files";
 }

BeWoPlanerChat/bewoplaner-chat-android/app/src/main/java/de/beyondsoft/ownchat/utils/FileUtils.java

@@ -24,6 +24,7 @@ import android.graphics.Bitmap;
 import android.net.Uri;
 import android.os.Build;
 import android.os.Environment;
+import android.provider.ContactsContract;
 import android.provider.DocumentsContract;
 import android.provider.MediaStore;
 import android.util.Log;
@@ -563,4 +564,28 @@ public class FileUtils {
 
         return extension;
     }
+
+    // TODO: a method that creates a tmp_file directory, and methods to clear it and store files in there
+
+    public static String getTmpFilesDir(Context context) {
+        String dirName = context.getExternalFilesDir(null) + "/" + Constants.TMP_FILE_DIR;
+
+        boolean mkdir = new File(dirName).mkdir();
+
+        return dirName;
+    }
+
+    public static boolean clearTmpFilesDir(Context context) {
+        File dir = new File(getTmpFilesDir(context));
+
+        if(!dir.exists()) {
+            return true;
+        }
+
+        for(File f : dir.listFiles()) {
+            boolean delete = f.delete();
+        }
+
+        return true;
+    }
 }