Android Activity without ActionBar

问题:

I have different Activities in my App and in all of them I do not want the Action Bar. I cannot find how to disable it. I have tried to find an attribute to apply it to the main_activity.xml but so far I did not find anything. Can somebody help me please?

回答1:

Haha, I have been stuck at that point a while ago as well, so I am glad I can help you out with a solution, that worked for me at least :)

What you want to do is define a new style within values/styles.xml so it looks like this

<resources>
    <style name = "AppTheme" parent = "android:Theme.Holo.Light.DarkActionBar">
        <!-- Customize your theme here. -->
    </style>

    <style name = "NoActionBar" parent = "@android:style/Theme.Holo.Light">
        <item name = "android:windowActionBar">false</item>
        <item name = "android:windowNoTitle">true</item>
    </style>

</resources>

Only the NoActionBar style is intresting for you. At last you have to set is as your application's theme in the AndroidManifest.xml so it looks like this

<application
    android:allowBackup = "true"
    android:icon = "@drawable/ic_launcher"
    android:label = "@string/app_name"
    android:theme = "@style/NoActionBar"   <!--This is the important line-->
    >
    <activity
    [...]

I hope this helps, if not, let me know.

回答2:

There are multiple ways of doing this.

1) Change the theme in Android Manifest

Below the Application element, you will find theme tag. Replace it with this one -

android:theme="@android:style/Theme.NoTitleBar"

If you are using AppCompat, use @android:style/Theme.AppCompat.NoActionBar.

This will set the theme for all activities. If you don't need the action bar in a specific acitivity, then set the theme in the activity container, ie

<activity android:theme="@android:style/Theme.NoTitleBar" ...>

You may also set android:theme="@android:style/Theme.NoTitleBar" theme in the styles and use it later on.

---

2) Create a Custom Theme

Add this in res/values/styles.xml

<style name="NoActionBar" parent="@android:style/Theme.Holo.Light">
     <item name="windowActionBar">false</item>
     <item name="android:windowNoTitle">true</item>
</style>

and then set it as your activity's theme in Manifest:

<activity android:theme="@style/NoActionBar" ... />

---

3) Dynamically Remove the Action Bar

Put this code in the onCreate method before setting content view -

getWindow().requestFeature(Window.FEATURE_ACTION_BAR);
getActionBar().hide();

If you are using the support library use getSupportActionBar().

回答3:

Considering everyone is posting older ways of hiding the ActionBar here is the proper way of implementing it within styles for AppCompat support library. Which I highly suggest moving toward if you haven't already.

Simply removing the ActionBar

<style name="AppTheme" parent="Theme.AppCompat.Light.NoActionBar">
</style>

If you are using the appcompat support libraries, this is the easiest and recommended way of hiding the ActionBar to make full screen or start implementing to toolbar within your layouts.

<style name="AppTheme" parent="Theme.AppCompat.Light.NoActionBar">
    <!-- Your Toolbar Color-->
    <item name="colorPrimary">@color/primary</item>

    <!-- colorPrimaryDark is used for the status bar -->
    <item name="colorPrimaryDark">@color/primary_dark</item>

    <!-- colorAccent is used as the default value for colorControlActivated,
     which is used to tint widgets -->
    <item name="colorAccent">@color/accent</item>

    <!-- You can also set colorControlNormal, colorControlActivated
     colorControlHighlight, and colorSwitchThumbNormal. -->
</style>

Then to change your toolbar color

<android.support.v7.widget.Toolbar
    android:id=”@+id/my_awesome_toolbar”
    android:layout_height=”wrap_content”
    android:layout_width=”match_parent”
    android:minHeight=”?attr/actionBarSize”
    android:background=”?attr/primary” />

Last note: Your Activity class should extend AppCompatActivity

public class MainActivity extends AppCompatActivity {

<!--Activity Items -->

}

回答4:

You may also change inheritance from ActionBarActivity to Activity as written here.

UPDATE

A good solution is here:

@Override
protected void onCreate(Bundle savedInstanceState) {
    getWindow().requestFeature(Window.FEATURE_ACTION_BAR);
    super.onCreate(savedInstanceState);
    getSupportActionBar().hide();
    setContentView(R.layout.activity_main);
}

回答5:

If you're using AppCompat, declare your activity in AndroidManifest.xml as follows:

<activity
    android:name=".SomeActivity"
    ...
    android:theme="@style/Theme.AppCompat.Light.NoActionBar" />

回答6:

I will try to show it as simple as i can:

DECLARE FULL SCREEN ACTIVITY IN ANDROID MAINIFEST file:

<activity
            android:name=".GameActivity"
            android:label="@string/title_activity_game"
            android:theme="@android:style/Theme.NoTitleBar.Fullscreen">

Now in Android studio (if you using it) open your Activity xml file ( in my example activity_game.xml) in designer and select theme (above mobile phone in designer click button with small circle) and then select Mainfest Themes on the left side and then NoTitleBar.Fullscreen.

Hope it will help!

回答7:

If you want most of your activities to have an action bar you would probably inherit your base theme from the default one (this is automatically generated by Android Studio per default):

<!-- Base application theme. -->
    <style name="AppTheme" parent="Theme.AppCompat.Light.DarkActionBar">
        <!-- Customize your theme here. -->
        <item name="colorPrimary">@color/colorPrimary</item>
        <item name="colorPrimaryDark">@color/colorPrimaryDark</item>
        <item name="colorAccent">@color/colorAccent</item>
    </style>

And then add a special theme for your bar-less activity:

<style name="AppTheme.NoTitle" parent="AppTheme">
        <item name="windowNoTitle">true</item>
        <item name="windowActionBar">false</item>
        <item name="actionBarTheme">@null</item>
    </style>

For me, setting actionBarTheme to @null was the solution.

Finally setup the activity in your manifest file:

<activity ... android:theme="@style/AppTheme.NoTitle" ... >

回答8:

open Manifest and add attribute theme = "@style/Theme.AppCompat.Light.NoActionBar" to activity you want it without actionbar :

<application
    ...
    android:theme="@style/AppTheme">
    <activity android:name=".MainActivity"
        android:theme="@style/Theme.AppCompat.Light.NoActionBar">
        ...
    </activity>
</application>

回答9:

Please find the default theme in styles.xml

<!-- Base application theme. -->
    <style name="AppTheme" parent="Theme.AppCompat.Light.DarkActionBar">
        <!-- Customize your theme here. -->
        <item name="colorPrimary">@color/colorPrimary</item>
        <item name="colorPrimaryDark">@color/colorPrimaryDark</item>
        <item name="colorAccent">@color/colorAccent</item>
    </style>

And change parent this way

<style name="AppTheme" parent="Theme.AppCompat.Light.NoActionBar">

回答10:

Create an new Style with any name, in my case "Theme.Alert.NoActionBar"

<style name="Theme.Alert.NoActionBar" parent="Theme.AppCompat.Dialog">
    <item name="windowNoTitle">true</item>
    <item name="windowActionBar">false</item>
</style>

set its parent as "Theme.AppCompat.Dialog" like in the above code

open AndoridManifest.xml and customize the activity you want to show as Alert Dialog like this

    <activity
        android:excludeFromRecents="true"
        android:theme="@style/Theme.Alert.NoActionBar"
        android:name=".activities.UserLoginActivity" />

in my app i want show my user login activity as Alert Dialog, these are the codes i used. hope this works for you!!!