无法将图标添加到操作栏

Question

I have recently started a new project and created a custom action bar but for some reason it is not adding icons to it, they will appear on the overflow part but not on the actual bar! :(, really sorry if this seems simple I have just started learning android, I'll post my code below.

menu_main.xml

<menu xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"   
tools:context=".MainActivity">

<item android:id="@+id/maps"
    android:icon="@drawable/ic_action_map"
    android:title= "@string/maps"
    app:showAsAction="ifRoom"
    android:orderInCategory="100"/>

<item android:id="@+id/action_settings"
    android:title="@string/action_settings"
    android:orderInCategory="100"
    app:showAsAction="never" />

part of my main method

  @Override
public boolean onCreateOptionsMenu(Menu menu) {
    // Inflate the menu items for use in the action bar
    MenuInflater inflater = getMenuInflater();
    inflater.inflate(R.menu.menu_main, menu);
    return super.onCreateOptionsMenu(menu);
}

Thanks in advance

edit: I'm using android studio as well

edit2: Here is my manifest file.

<?xml version="1.0" encoding="utf-8"?>

<application
    android:allowBackup="true"
    android:icon="@drawable/ic_maps"
    android:label="@string/app_name"
    android:theme="@style/AppTheme"
   >
    <activity
        android:name=".MainActivity"
        android:label="SIX REP MAX" >
        <intent-filter>
            <action android:name="android.intent.action.MAIN" />

            <category android:name="android.intent.category.LAUNCHER" />
        </intent-filter>
    </activity>
    <activity android:name=".Chest"
        android:parentActivityName=".MainActivity">
    </activity>
    <activity android:name=".Back"
        android:parentActivityName=".MainActivity">
    </activity>
    <activity android:name=".Biceps"
        android:parentActivityName=".MainActivity">
    </activity>
    <activity android:name=".Triceps"
        android:parentActivityName=".MainActivity">
    </activity>
    <activity android:name=".Shoulders"
        android:parentActivityName=".MainActivity">
    </activity>
    <activity android:name=".Legs"
        android:parentActivityName=".MainActivity">
    </activity>
</application>

edit 3: Here is my custom action bar

<resources>

<!-- Base application theme. -->
<style name="AppTheme" parent="@android:style/Theme.Holo.Light">
    <item name="android:actionBarStyle">@style/MyActionBar</item>
</style>

<style name="MyActionBar" parent="@android:style/Widget.Holo.Light.ActionBar">
    <item name="android:background">#0099FF</item>
    <item name="android:titleTextStyle">@style/MyTheme.ActionBar.TitleTextStyle</item>

</style>
<style name="MyTheme.ActionBar.TitleTextStyle" parent="@android:style/Widget.Holo.Light.ActionBar">
    <item name="android:textColor">#ffffff</item>
    <item name="android:textSize">24sp</item>
</style>

Answer 1

Do this for all menu items:

app:showAsAction="always"

and add this to your Activity :

@Override
public boolean onPrepareOptionsMenu (Menu menu) {
    // This will hide the 3-dots menu
    return false;
}

Try this. This will work.

Answer 2

This is the code you should be using , careful look at the return in onCreateOptionsMenu

 @Override
 public boolean onCreateOptionsMenu(Menu menu) {
    MenuInflater inflater = getSupportMenuInflater();
    inflater.inflate(R.menu.some_menu_xml, menu);

   //return true is important here
    return true;
 }
 @Override
 public boolean onOptionsItemSelected(MenuItem item) {
    switch (item.getItemId()) {
        case R.id.maps:
            //Do Something
            return true;
        case android.R.id.home:
           //Do Something else
            return true;
    }
    return super.onOptionsItemSelected(item);
}

Answer 3

Try the following code:

    <item android:id="@+id/maps"
    android:icon="@drawable/ic_action_map"
    android:title= "@string/maps"
    app:showAsAction="always"
    android:orderInCategory="100"/>
   <item android:id="@+id/action_settings"
    android:title="@string/action_settings"
    android:orderInCategory="100"
    app:showAsAction="always" />

Probably your image is not fitting to actionbar. So as you are trying

app:showAsAction="ifRoom"

Its misplacing. So instead of using ifRoom put always. Otherwise try to make the image resized to fit your action bar

Answer 4

Your code seems all okay but try removing

xmlns:tools="http://schemas.android.com/tools"
tools:context=".MainActivity"

from <menu> tag and also remove

android:orderInCategory="100"

from <item android:id="@+id/maps"