diff --git a/.gitignore b/.gitignore
index 75cb58c..9097567 100644
--- a/.gitignore
+++ b/.gitignore
@@ -16,6 +16,6 @@ local.properties
 /app/release/app-release.apk
 /app/release/baselineProfiles/0/app-release.dm
 /app/release/baselineProfiles/1/app-release.dm
-/info/info.txt
-/info/key_emoticon_test.jks
 /app/release/output-metadata.json
+
+/app/release/*
diff --git a/app/src/main/java/com/timber/soft/myemoticon/MainFragment.kt b/app/src/main/java/com/timber/soft/myemoticon/MainFragment.kt
index c98daae..4540f30 100644
--- a/app/src/main/java/com/timber/soft/myemoticon/MainFragment.kt
+++ b/app/src/main/java/com/timber/soft/myemoticon/MainFragment.kt
@@ -49,7 +49,6 @@ class OnItemClickListenerImpl(private val mcontext: Context) : OnItemClickListen
         startActivity(mcontext, intent, null)
         Log.d("onClick", "item has been click!")
     }
-
 }
 
 interface OnItemClickListener {
diff --git a/app/src/main/java/com/timber/soft/myemoticon/SetDetailsActivity.kt b/app/src/main/java/com/timber/soft/myemoticon/SetDetailsActivity.kt
index 0e0babd..7ed9940 100644
--- a/app/src/main/java/com/timber/soft/myemoticon/SetDetailsActivity.kt
+++ b/app/src/main/java/com/timber/soft/myemoticon/SetDetailsActivity.kt
@@ -141,8 +141,11 @@ class SetDetailsActivity : AppCompatActivity(), DownloadListener {
             } else if (listFile.getName().endsWith(".webp")) {
                 data.add(listFile)
             } else {
+                // 获取一个私有共享 preferences 对象
                 val sp = this.getSharedPreferences("", Context.MODE_PRIVATE)
+                // 使用 edit() 方法编辑 preferences
                 sp.edit().putString(identifierName, listFile.absolutePath).apply()
+                // 将修改后的 preferences 返回给调用者
             }
         }
 
diff --git a/app/src/main/java/com/timber/soft/myemoticon/StickerProvider.kt b/app/src/main/java/com/timber/soft/myemoticon/StickerProvider.kt
index 955c18a..b926dbf 100644
--- a/app/src/main/java/com/timber/soft/myemoticon/StickerProvider.kt
+++ b/app/src/main/java/com/timber/soft/myemoticon/StickerProvider.kt
@@ -140,7 +140,9 @@ class StickerProvider : ContentProvider() {
     /**
      * TODO no impl
      */
+    // This method returns a string representing the type of a given URI
     override fun getType(uri: Uri): String? {
+        // If the URI matches the AppVal.STICKERS_CODE, return a formatted string containing the author and stickers
         if (uriMatcher.match(uri) == AppVal.STICKERS_CODE) {
             return String.format(
                 context.getString(R.string.type_sticker),
@@ -148,6 +150,7 @@ class StickerProvider : ContentProvider() {
                 AppVal.STICKERS
             )
         }
+        // Otherwise, return null
         return null
     }
 
@@ -183,7 +186,9 @@ class StickerProvider : ContentProvider() {
         return filePath!!.substring(0, filePath.lastIndexOf("contents.json"))
     }
 
+    // This function is used to insert a new row of data into the database with the given URI and ContentValues.
     override fun insert(uri: Uri, values: ContentValues?): Uri? {
+        // This function returns the URI of the inserted row or null if the insertion failed.
         return null
     }
 
diff --git a/info/info.txt b/info/info.txt
new file mode 100644
index 0000000..a981107
--- /dev/null
+++ b/info/info.txt
@@ -0,0 +1,5 @@
+应用名：Color Sticker
+包名：com.stickify.stickers.app 
+
+别名：key_emoticon
+密码: key123
\ No newline at end of file
diff --git a/info/key_emoticon.jks b/info/key_emoticon.jks
new file mode 100644
index 0000000..5d9ec66
Binary files /dev/null and b/info/key_emoticon.jks differ
diff --git a/info/key_emoticon_test.jks b/info/key_emoticon_test.jks
new file mode 100644
index 0000000..e5e93c0
Binary files /dev/null and b/info/key_emoticon_test.jks differ