diff --git a/.idea/Android.iml b/.idea/Android.iml
new file mode 100644
index 00000000..d6ebd480
--- /dev/null
+++ b/.idea/Android.iml
@@ -0,0 +1,9 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<module type="JAVA_MODULE" version="4">
+  <component name="NewModuleRootManager" inherit-compiler-output="true">
+    <exclude-output />
+    <content url="file://$MODULE_DIR$" />
+    <orderEntry type="inheritedJdk" />
+    <orderEntry type="sourceFolder" forTests="false" />
+  </component>
+</module>
\ No newline at end of file
diff --git a/.idea/codeStyles/Project.xml b/.idea/codeStyles/Project.xml
new file mode 100644
index 00000000..30aa626c
--- /dev/null
+++ b/.idea/codeStyles/Project.xml
@@ -0,0 +1,29 @@
+<component name="ProjectCodeStyleConfiguration">
+  <code_scheme name="Project" version="173">
+    <Objective-C-extensions>
+      <file>
+        <option name="com.jetbrains.cidr.lang.util.OCDeclarationKind" value="Import" />
+        <option name="com.jetbrains.cidr.lang.util.OCDeclarationKind" value="Macro" />
+        <option name="com.jetbrains.cidr.lang.util.OCDeclarationKind" value="Typedef" />
+        <option name="com.jetbrains.cidr.lang.util.OCDeclarationKind" value="Enum" />
+        <option name="com.jetbrains.cidr.lang.util.OCDeclarationKind" value="Constant" />
+        <option name="com.jetbrains.cidr.lang.util.OCDeclarationKind" value="Global" />
+        <option name="com.jetbrains.cidr.lang.util.OCDeclarationKind" value="Struct" />
+        <option name="com.jetbrains.cidr.lang.util.OCDeclarationKind" value="FunctionPredecl" />
+        <option name="com.jetbrains.cidr.lang.util.OCDeclarationKind" value="Function" />
+      </file>
+      <class>
+        <option name="com.jetbrains.cidr.lang.util.OCDeclarationKind" value="Property" />
+        <option name="com.jetbrains.cidr.lang.util.OCDeclarationKind" value="Synthesize" />
+        <option name="com.jetbrains.cidr.lang.util.OCDeclarationKind" value="InitMethod" />
+        <option name="com.jetbrains.cidr.lang.util.OCDeclarationKind" value="StaticMethod" />
+        <option name="com.jetbrains.cidr.lang.util.OCDeclarationKind" value="InstanceMethod" />
+        <option name="com.jetbrains.cidr.lang.util.OCDeclarationKind" value="DeallocMethod" />
+      </class>
+      <extensions>
+        <pair source="cpp" header="h" fileNamingConvention="NONE" />
+        <pair source="c" header="h" fileNamingConvention="NONE" />
+      </extensions>
+    </Objective-C-extensions>
+  </code_scheme>
+</component>
\ No newline at end of file
diff --git a/.idea/misc.xml b/.idea/misc.xml
new file mode 100644
index 00000000..dd94e31c
--- /dev/null
+++ b/.idea/misc.xml
@@ -0,0 +1,32 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="NullableNotNullManager">
+    <option name="myDefaultNullable" value="android.support.annotation.Nullable" />
+    <option name="myDefaultNotNull" value="android.support.annotation.NonNull" />
+    <option name="myNullables">
+      <value>
+        <list size="7">
+          <item index="0" class="java.lang.String" itemvalue="org.jetbrains.annotations.Nullable" />
+          <item index="1" class="java.lang.String" itemvalue="javax.annotation.Nullable" />
+          <item index="2" class="java.lang.String" itemvalue="javax.annotation.CheckForNull" />
+          <item index="3" class="java.lang.String" itemvalue="edu.umd.cs.findbugs.annotations.Nullable" />
+          <item index="4" class="java.lang.String" itemvalue="android.support.annotation.Nullable" />
+          <item index="5" class="java.lang.String" itemvalue="androidx.annotation.Nullable" />
+          <item index="6" class="java.lang.String" itemvalue="androidx.annotation.RecentlyNullable" />
+        </list>
+      </value>
+    </option>
+    <option name="myNotNulls">
+      <value>
+        <list size="6">
+          <item index="0" class="java.lang.String" itemvalue="org.jetbrains.annotations.NotNull" />
+          <item index="1" class="java.lang.String" itemvalue="javax.annotation.Nonnull" />
+          <item index="2" class="java.lang.String" itemvalue="edu.umd.cs.findbugs.annotations.NonNull" />
+          <item index="3" class="java.lang.String" itemvalue="android.support.annotation.NonNull" />
+          <item index="4" class="java.lang.String" itemvalue="androidx.annotation.NonNull" />
+          <item index="5" class="java.lang.String" itemvalue="androidx.annotation.RecentlyNonNull" />
+        </list>
+      </value>
+    </option>
+  </component>
+</project>
\ No newline at end of file
diff --git a/.idea/modules.xml b/.idea/modules.xml
new file mode 100644
index 00000000..4b3d351b
--- /dev/null
+++ b/.idea/modules.xml
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ProjectModuleManager">
+    <modules>
+      <module fileurl="file://$PROJECT_DIR$/.idea/Android.iml" filepath="$PROJECT_DIR$/.idea/Android.iml" />
+    </modules>
+  </component>
+</project>
\ No newline at end of file
diff --git a/.idea/vcs.xml b/.idea/vcs.xml
new file mode 100644
index 00000000..35eb1ddf
--- /dev/null
+++ b/.idea/vcs.xml
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="VcsDirectoryMappings">
+    <mapping directory="" vcs="Git" />
+  </component>
+</project>
\ No newline at end of file
diff --git a/.idea/workspace.xml b/.idea/workspace.xml
new file mode 100644
index 00000000..a4b66e7b
--- /dev/null
+++ b/.idea/workspace.xml
@@ -0,0 +1,184 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="CMakeSettings">
+    <configurations>
+      <configuration PROFILE_NAME="Debug" CONFIG_NAME="Debug" />
+    </configurations>
+  </component>
+  <component name="ChangeListManager">
+    <list default="true" id="f7e64781-f5c9-4c38-96c2-409f318beb04" name="Default" comment="">
+      <change afterPath="$PROJECT_DIR$/.idea/vcs.xml" afterDir="false" />
+    </list>
+    <option name="EXCLUDED_CONVERTED_TO_IGNORED" value="true" />
+    <option name="TRACKING_ENABLED" value="true" />
+    <option name="SHOW_DIALOG" value="false" />
+    <option name="HIGHLIGHT_CONFLICTS" value="true" />
+    <option name="HIGHLIGHT_NON_ACTIVE_CHANGELIST" value="false" />
+    <option name="LAST_RESOLUTION" value="IGNORE" />
+  </component>
+  <component name="FileEditorManager">
+    <leaf>
+      <file leaf-file-name="AndroidManifest.xml" pinned="false" current-in-tab="true">
+        <entry file="file://$PROJECT_DIR$/android-draw-happy-face/AndroidManifest.xml">
+          <provider selected="true" editor-type-id="text-editor">
+            <state relative-caret-position="105">
+              <caret line="7" column="34" lean-forward="true" selection-start-line="7" selection-start-column="34" selection-end-line="7" selection-end-column="34" />
+            </state>
+          </provider>
+        </entry>
+      </file>
+    </leaf>
+  </component>
+  <component name="Git.Settings">
+    <option name="RECENT_GIT_ROOT_PATH" value="$PROJECT_DIR$" />
+  </component>
+  <component name="ProjectFrameBounds" extendedState="6">
+    <option name="y" value="-1" />
+    <option name="width" value="1920" />
+    <option name="height" value="1053" />
+  </component>
+  <component name="ProjectView">
+    <navigator currentView="ProjectPane" proportions="" version="1">
+      <foldersAlwaysOnTop value="true" />
+    </navigator>
+    <panes>
+      <pane id="PackagesPane" />
+      <pane id="ProjectPane">
+        <subPane>
+          <expand>
+            <path>
+              <item name="Android" type="b2602c69:ProjectViewProjectNode" />
+              <item name="Android" type="462c0819:PsiDirectoryNode" />
+            </path>
+            <path>
+              <item name="Android" type="b2602c69:ProjectViewProjectNode" />
+              <item name="Android" type="462c0819:PsiDirectoryNode" />
+              <item name="android-draw-happy-face" type="462c0819:PsiDirectoryNode" />
+            </path>
+          </expand>
+          <select />
+        </subPane>
+      </pane>
+      <pane id="AndroidView" />
+      <pane id="Scope" />
+    </panes>
+  </component>
+  <component name="PropertiesComponent">
+    <property name="android.sdk.path" value="$USER_HOME$/Android/Sdk" />
+    <property name="last_opened_file_path" value="$PROJECT_DIR$" />
+    <property name="settings.editor.selected.configurable" value="AndroidSdkUpdater" />
+  </component>
+  <component name="RunDashboard">
+    <option name="ruleStates">
+      <list>
+        <RuleState>
+          <option name="name" value="ConfigurationTypeDashboardGroupingRule" />
+        </RuleState>
+        <RuleState>
+          <option name="name" value="StatusDashboardGroupingRule" />
+        </RuleState>
+      </list>
+    </option>
+  </component>
+  <component name="RunManager">
+    <configuration default="true" type="AndroidJUnit" factoryName="Android JUnit">
+      <option name="ALTERNATIVE_JRE_PATH_ENABLED" value="false" />
+      <option name="ALTERNATIVE_JRE_PATH" />
+      <option name="PACKAGE_NAME" />
+      <option name="MAIN_CLASS_NAME" />
+      <option name="METHOD_NAME" />
+      <option name="TEST_OBJECT" value="class" />
+      <option name="VM_PARAMETERS" value="-ea" />
+      <option name="PARAMETERS" />
+      <option name="WORKING_DIRECTORY" value="$MODULE_DIR$" />
+      <option name="PASS_PARENT_ENVS" value="true" />
+      <option name="TEST_SEARCH_SCOPE">
+        <value defaultName="singleModule" />
+      </option>
+      <patterns />
+    </configuration>
+    <configuration default="true" type="Application" factoryName="Application">
+      <option name="WORKING_DIRECTORY" value="$PROJECT_DIR$" />
+    </configuration>
+    <configuration default="true" type="TestNG" factoryName="TestNG">
+      <option name="ALTERNATIVE_JRE_PATH_ENABLED" value="false" />
+      <option name="ALTERNATIVE_JRE_PATH" />
+      <option name="SUITE_NAME" />
+      <option name="PACKAGE_NAME" />
+      <option name="MAIN_CLASS_NAME" />
+      <option name="METHOD_NAME" />
+      <option name="GROUP_NAME" />
+      <option name="TEST_OBJECT" value="CLASS" />
+      <option name="VM_PARAMETERS" value="-ea" />
+      <option name="PARAMETERS" />
+      <option name="WORKING_DIRECTORY" value="%MODULE_WORKING_DIR%" />
+      <option name="OUTPUT_DIRECTORY" />
+      <option name="PASS_PARENT_ENVS" value="true" />
+      <option name="TEST_SEARCH_SCOPE">
+        <value defaultName="singleModule" />
+      </option>
+      <option name="USE_DEFAULT_REPORTERS" value="false" />
+      <option name="PROPERTIES_FILE" />
+      <properties />
+      <listeners />
+    </configuration>
+    <configuration name="&lt;template&gt;" type="JUnit" default="true" selected="false">
+      <option name="VM_PARAMETERS" value="-ea" />
+      <option name="WORKING_DIRECTORY" value="%MODULE_WORKING_DIR%" />
+    </configuration>
+  </component>
+  <component name="SvnConfiguration">
+    <configuration />
+  </component>
+  <component name="TaskManager">
+    <task active="true" id="Default" summary="Default task">
+      <changelist id="f7e64781-f5c9-4c38-96c2-409f318beb04" name="Default" comment="" />
+      <created>1543332329782</created>
+      <option name="number" value="Default" />
+      <option name="presentableId" value="Default" />
+      <updated>1543332329782</updated>
+    </task>
+    <servers />
+  </component>
+  <component name="ToolWindowManager">
+    <frame x="0" y="-1" width="1920" height="1053" extended-state="6" />
+    <editor active="true" />
+    <layout>
+      <window_info anchor="bottom" id="TODO" order="6" />
+      <window_info anchor="right" id="Palette&#9;" />
+      <window_info id="Image Layers" />
+      <window_info anchor="right" id="Capture Analysis" />
+      <window_info anchor="bottom" id="Event Log" side_tool="true" />
+      <window_info anchor="bottom" id="Version Control" weight="0.32972974" />
+      <window_info anchor="bottom" id="Run" order="2" />
+      <window_info active="true" anchor="bottom" id="Terminal" visible="true" weight="0.32972974" />
+      <window_info id="Capture Tool" />
+      <window_info id="Designer" />
+      <window_info content_ui="combo" id="Project" order="0" visible="true" weight="0.24986821" />
+      <window_info id="Structure" order="1" side_tool="true" weight="0.25" />
+      <window_info anchor="right" id="Theme Preview" />
+      <window_info id="Favorites" side_tool="true" />
+      <window_info anchor="bottom" id="Debug" order="3" weight="0.4" />
+      <window_info anchor="bottom" id="Find" order="1" />
+      <window_info anchor="right" id="Commander" internal_type="SLIDING" order="0" type="SLIDING" weight="0.4" />
+      <window_info anchor="bottom" id="Inspection" order="5" weight="0.4" />
+      <window_info anchor="right" content_ui="combo" id="Hierarchy" order="2" weight="0.25" />
+      <window_info anchor="right" id="Ant Build" order="1" weight="0.25" />
+      <window_info anchor="bottom" id="Message" order="0" />
+      <window_info anchor="bottom" id="Cvs" order="4" weight="0.25" />
+      <window_info id="Captures" order="2" weight="0.25" />
+    </layout>
+  </component>
+  <component name="VcsContentAnnotationSettings">
+    <option name="myLimit" value="2678400000" />
+  </component>
+  <component name="editorHistoryManager">
+    <entry file="file://$PROJECT_DIR$/android-draw-happy-face/AndroidManifest.xml">
+      <provider selected="true" editor-type-id="text-editor">
+        <state relative-caret-position="105">
+          <caret line="7" column="34" lean-forward="true" selection-start-line="7" selection-start-column="34" selection-end-line="7" selection-end-column="34" />
+        </state>
+      </provider>
+    </entry>
+  </component>
+</project>
\ No newline at end of file
diff --git a/readme.md b/readme.md
index c47eb01f..7f89e167 100644
--- a/readme.md
+++ b/readme.md
@@ -3,3 +3,4 @@ Android Repository
 
 
 This repository contains complete code for Android blog posts on [hmkcode.com](http://hmkcode.com)
+hello what can i change