diff --git a/docs/src/SUMMARY.md b/docs/src/SUMMARY.md
index d8aa01b..cdee397 100644
--- a/docs/src/SUMMARY.md
+++ b/docs/src/SUMMARY.md
@@ -4,10 +4,12 @@
 
 # Quick Start
 
+- [Rust](./platform/rust.md)
 - [Flutter](./platform/flutter.md)
 - [Android](./platform/android.md)
 - [iOS](./platform/ios.md)
-- [Rust](./platform/rust.md)
+
+[Log query](./query.md)
 
 [Benchmark](./benchmark.md)
 
diff --git a/docs/src/images/ui-screenshot.png b/docs/src/images/ui-screenshot.png
new file mode 100644
index 0000000..7428c40
Binary files /dev/null and b/docs/src/images/ui-screenshot.png differ
diff --git a/docs/src/platform/android.md b/docs/src/platform/android.md
index ca34e65..80739f4 100644
--- a/docs/src/platform/android.md
+++ b/docs/src/platform/android.md
@@ -69,6 +69,9 @@ override fun onCreate() {
             Log.i("ezlog", "$logName $date $err")
         }
     })
+
+    // get logs
+    EZLog.requestLogFilesForDate("demo", new Date())
 }
 
 ```
diff --git a/docs/src/platform/flutter.md b/docs/src/platform/flutter.md
index debce8f..0fb8c88 100644
--- a/docs/src/platform/flutter.md
+++ b/docs/src/platform/flutter.md
@@ -45,7 +45,7 @@ class _MyAppState extends State<MyApp> {
     
     logger.d("init", "success");
 
-    var logs = await EZLog.requestLogFilesForDate("main", "2022_08_25");
+    var logs = await EZLog.requestLogFilesForDate("main", DateTime.now());
   }
 }
 ```
diff --git a/docs/src/platform/ios.md b/docs/src/platform/ios.md
index dbc5f9f..19c8b70 100644
--- a/docs/src/platform/ios.md
+++ b/docs/src/platform/ios.md
@@ -53,6 +53,9 @@ init() {
     })
     
     logger.debug("first blood")
+
+    let millis = Int64((date.timeIntervalSince1970 * 1000.0).rounded())
+    requestLogsForDate(logName: "demo", start: millis, end: millis)
 }
 ```
 click run and see console ouput.
diff --git a/docs/src/platform/rust.md b/docs/src/platform/rust.md
index 5d63988..72b7304 100644
--- a/docs/src/platform/rust.md
+++ b/docs/src/platform/rust.md
@@ -17,7 +17,21 @@ use ezlog::Level;
 use log::{error, info, warn};
 use log::{LevelFilter, Log};
 
-ezlog::InitBuilder::new().init();
+let on_success: fn(&str, &str, &[&str]) = |name, date, logs| {
+    println!(
+        "on_success: name: {}, desc: {}, tags: {:?}", name, date, logs
+    );
+};
+
+let on_fail: fn(&str, &str, &str) = |name, date, err| {
+    println!(
+        "on_fail: name: {}, desc: {}, err: {}", name, date, err
+    );
+};
+
+ezlog::InitBuilder::new()
+    .with_request_callback_fn(on_success, on_fail)
+    .init();
 
 let config = EZLogConfigBuilder::new()
         .level(Level::Trace)
@@ -33,6 +47,12 @@ ezlog::create_log(config);
 
 info!("hello ezlog");
 
+ezlog::request_log_files_for_date(
+    ezlog::DEFAULT_LOG_NAME,
+    OffsetDateTime::now_utc(),
+    OffsetDateTime::now_utc()
+);
+
 ```
 
 see more examples in examples dir.
diff --git a/docs/src/query.md b/docs/src/query.md
new file mode 100644
index 0000000..513baf0
--- /dev/null
+++ b/docs/src/query.md
@@ -0,0 +1,11 @@
+## Logs Query&View
+
+### View Logs
+
+If you want view a log file, you can use cmdline tools to parse the log, and open the output file in any text viewer application. Or you can download ezlog-ui application which is a desktop app built by tauri, it support decompress and decrypt. 
+
+download at [release page]( https://github.com/s1rius/ezlog/releases/tag/ezlog-ui-0.1.0)
+
+Open the app, and drag the log file to the window, you can see the log conent. 
+
+![screenshot](images/ui-screenshot.png)
diff --git a/ezlog-core/src/decode.rs b/ezlog-core/src/decode.rs
index 20b0775..6c72fee 100644
--- a/ezlog-core/src/decode.rs
+++ b/ezlog-core/src/decode.rs
@@ -293,7 +293,6 @@ mod tests {
     use time::OffsetDateTime;
 
     use super::decode_record;
-    use crate::{thread_name, LogError};
     use crate::{
         decode,
         EZLogger,
@@ -301,6 +300,10 @@ mod tests {
         EZRecordBuilder,
         Header,
     };
+    use crate::{
+        thread_name,
+        LogError,
+    };
 
     #[cfg(feature = "decode")]
     fn create_all_feature_config(path: &str) -> crate::EZLogConfig {
@@ -364,7 +367,9 @@ mod tests {
                 count += 1;
             }
             if is_end {
-                tx.send(()).unwrap_or_else(|_| { LogError::Parse("Could not send signal on channel.".to_string()); });
+                tx.send(()).unwrap_or_else(|_| {
+                    LogError::Parse("Could not send signal on channel.".to_string());
+                });
                 return None;
             }
             Some(0)
@@ -376,7 +381,9 @@ mod tests {
             header,
             my_closure,
         );
-        rx.recv().unwrap_or_else(|_| { LogError::Parse("Could not receive from channel.".to_string()); });
+        rx.recv().unwrap_or_else(|_| {
+            LogError::Parse("Could not receive from channel.".to_string());
+        });
         Ok(count)
     }
 
@@ -443,7 +450,9 @@ mod tests {
                 }
             }
             if is_end {
-                tx.send(()).unwrap_or_else(|_| { LogError::Parse("Could not send signal on channel.".to_string()); });
+                tx.send(()).unwrap_or_else(|_| {
+                    LogError::Parse("Could not send signal on channel.".to_string());
+                });
                 return None;
             }
             Some(0)
@@ -455,7 +464,9 @@ mod tests {
             header,
             my_closure,
         );
-        rx.recv().unwrap_or_else(|_| { LogError::Parse("Could not receive from channel.".to_string()); });
+        rx.recv().unwrap_or_else(|_| {
+            LogError::Parse("Could not receive from channel.".to_string());
+        });
         Ok(array)
     }