Android Theme.NoTitleBar doesnot work

问题

I am have a facebook like sliding menu bar in my app in which the two content and main layout of the app is handled by a Custom layout class.

I want to remove the titlebar of my app

Issue:

Even though I place

android:Theme.Light.NoTitleBar

in my manifest there is a blank space of title bar. Due to which my whole layout is pushed downwards.

I have tried using

requestWindowFeature(Window.FEATURE_NO_TITLE);

and

getWindow().setFlags(WindowManager.LayoutParams.FLAG_LAYOUT_IN_SCREEN,WindowManager.LayoutParams.FLAG_FULLSCREEN);

but still the titlebar space is not removed.

This is how the app looks like

I think this is caused due to the Custom LinearLayout class which holds the main sliding layout. But I am unable to remove the titlebar space from the custom layout class. Suggest a better solution.

Custom Layout Class

   public class MainLayout extends LinearLayout {
        public MainLayout(Context context, AttributeSet attrs) {
            super(context, attrs);
        }
        public MainLayout(Context context) {
            super(context);
        }

        // Overriding LinearLayout core methods
        // layout based on the children
        @Override
        protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
            super.onMeasure(widthMeasureSpec, heightMeasureSpec);

            mainLayoutWidth = MeasureSpec.getSize(widthMeasureSpec);
            menuRightMargin = mainLayoutWidth * 10 / 100;
        }

        @Override
        protected void onAttachedToWindow() {
            super.onAttachedToWindow();
            menu = this.getChildAt(0);
            content = this.getChildAt(1);   
            content.setOnTouchListener(new OnTouchListener() {
                @Override
                public boolean onTouch(View v, MotionEvent event) {
                    return MainLayout.this.onContentTouch(v, event);
                }
            });

@Override
    protected void onLayout(boolean changed, int left, int top, int right, int bottom) {
        if(changed) {
           LayoutParams contentLayoutParams = (LayoutParams)content.getLayoutParams();
            contentLayoutParams.height = this.getHeight();
            contentLayoutParams.width = this.getWidth(); LayoutParams menuLayoutParams = (LayoutParams)menu.getLayoutParams();
        menuLayoutParams.width = this.getWidth() - menuRightMargin;          
        }

        menu.layout(left, top, right - menuRightMargin, bottom);
        content.layout(left + contentXOffset, top, right + contentXOffset, bottom);

      }
     }

回答1:

u can specify directly in the manifest file of the activity

<activity android:name=".MainActivity"
      android:label="@string/app_name"
      android:theme="@android:style/Theme.Black.NoTitleBar.Fullscreen">

回答2:

Finally I was able to remove the titlebar space. As it turns out, including this tag

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

on application in manifest made the app fullscreen and corrected the issue. But I wanted the status bar to be visible in my app. So I had to compromise the status bar on the android versions in which the titlebar space was not reduced and let it be same on other versions. So here is how I resolved it.

in Manifest, I kept the code as it is

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

to remove the titlebar in the app

and in the activity which used the custom linear layout I checked the android version and kept the app fullscreen on versions less than and equal to Gingerbread.

if (Build.VERSION.SDK_INT <= Build.VERSION_CODES.GINGERBREAD) 
{ 
requestWindowFeature(Window.FEATURE_NO_TITLE);
getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,   
WindowManager.LayoutParams.FLAG_FULLSCREEN); 
}

回答3:

Try this in your manifest file

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

回答4:

Add the android:theme property to your AndroidManifest.xml:

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

回答5:

Hope this may help you.

this.requestWindowFeature(Window.FEATURE_NO_TITLE);

// Remove notification bar
this.getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,
    WindowManager.LayoutParams.FLAG_FULLSCREEN);

回答6:

It seems that Theme.NoTitleBar only works when applied to the whole application, not the activity itself. So put it in the application tag (in the manifest):

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

Then, add any custom style you have to each activity.

Hope it helps.

回答7:

In value\style.xml define name and themes e.g,

Then goto your androidmainfest.xml add within activity like.. android:theme="@style/NoActionBar"

来源：https://stackoverflow.com/questions/20323137/android-theme-notitlebar-doesnot-work

标签

android

android-layout

android-theme

titlebar