improve strings style

res/values/strings.xml

@@ -20,7 +20,7 @@
     <string name="redownload_file">Download again</string>
     <string name="cancel_download">Cancel</string>
     <string name="unknown_file_type">Unknown file type</string>
-    <string name="activity_not_found">Can not find App to open this file</string>
+    <string name="activity_not_found">Can\`t find App to open this file</string>
     <string name="refresh">Refresh</string>
     <string name="add_account">Add Account</string>
     <string name="personal">Personal</string>
@@ -48,9 +48,9 @@
     <string name="network_down">No network connection</string>
     <string name="unknow_error">Unknown error</string>
     <string name="invalid_server_address">Invalid server address</string>
-    <string name="err_server_andress_empty">Server address can not be empty</string>
-    <string name="err_email_empty">Email can not be empty</string>
-    <string name="err_passwd_empty">Password can not be empty</string>
+    <string name="err_server_andress_empty">Server address can\`t be empty</string>
+    <string name="err_email_empty">Email can\`t be empty</string>
+    <string name="err_passwd_empty">Password can\`t be empty</string>
     <string name="err_login_failed">Login failed</string>
     <string name="err_wrong_user_or_passwd">Email or password error</string>
     <string name="upload">Upload</string>
@@ -282,8 +282,8 @@
     <string name="settings_cache_title">Cache size</string>
     <string name="settings_clear_cache_title">Clear cache</string>
     <string name="settings_clear_cache_hint">Do you want to clear cache?</string>
-    <string name="settings_clear_cache_success">Clear cache successful</string>
-    <string name="settings_clear_cache_failed">Clear cache failed</string>
+    <string name="settings_clear_cache_success">Cache cleared successfully</string>
+    <string name="settings_clear_cache_failed">Cache cleared failed</string>
     <string name="settings_cache_empty">0 KB</string>
 
     <!-- pull to refresh -->
@@ -296,13 +296,13 @@
     <string name="pull_to_refresh_last_update_hours_ago">%d hours ago</string>
 
     <!-- storage access framework -->
-    <string name="saf_open_file_exception">Could not open file %s.</string>
-    <string name="saf_open_directory_exception">Can not open directory.</string>
+    <string name="saf_open_file_exception">Couldn\'t open file %s.</string>
+    <string name="saf_open_directory_exception">Can\`t open directory.</string>
     <string name="saf_file_not_cached_exception">File %s not cached.</string>
-    <string name="saf_thumbnail_not_found_exception">Could not find/open thumbnail %s.</string>
-    <string name="saf_file_not_downloaded_exception">Could not download file %s from server.</string>
-    <string name="saf_write_diretory_exception">Can not open directory for reading/writing.</string>
-    <string name="saf_account_not_found_exception">Could not find Seafile account.</string>
+    <string name="saf_thumbnail_not_found_exception">Couldn\'t find/open thumbnail %s.</string>
+    <string name="saf_file_not_downloaded_exception">Couldn\'t download file %s from server.</string>
+    <string name="saf_write_diretory_exception">Can\`t open directory for reading/writing.</string>
+    <string name="saf_account_not_found_exception">Couldn\'t find Seafile account.</string>
 
     <!-- shibboleth SSO -->
     <string name="shib_server_url_empty">Server is empty!</string>
@@ -326,6 +326,6 @@
     <string name="search_bar_hint">Searching&#8230;</string>
     <string name="search_txt_empty">Please input keywords</string>
     <string name="search_content_empty">Nothing was found</string>
-    <string name="search_server_not_support">Oops, Search was not supported on this server!</string>
+    <string name="search_server_not_support">Oops, search was not supported on this server!</string>
     <string name="search_library_not_found">Couldn\'t find this library. It may be deleted</string>
 </resources>