Android Completely transparent Status Bar?

Question

I\'ve searched the documentation but only found this: Link. Which is used to make the bar translucent? What I\'m trying to do is to make t

Answer 1

I found fiddling with styles.xml and activity to be too cumbersome hence created a common utility method which has below options set

Java

Window window = getWindow();
window.clearFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS);
window.addFlags(WindowManager.LayoutParams.FLAG_DRAWS_SYSTEM_BAR_BACKGROUNDS);
window.getDecorView().setSystemUiVisibility(View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN);
window.setStatusBarColor(Color.TRANSPARENT);

Kotlin DSL

activity.window.apply {
    clearFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS)
    addFlags(WindowManager.LayoutParams.FLAG_DRAWS_SYSTEM_BAR_BACKGROUNDS)
    decorView.systemUiVisibility = View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN
    statusBarColor = Color.TRANSPARENT
}

And that's all it took to achieve transparent status bar. Hope this helps.

Answer 2

Using this code in your XML, you will be able to see time bar in your activity:

<android.support.design.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:fitsSystemWindows="true">

Answer 3

Use android:fitsSystemWindows="false" in your top layout

Answer 4

You Can Use Below Code To Make Status Bar Transparent. See Images With red highlight which helps you to identify use of Below code

Kotlin code snippet for your android app

Step:1 Write down code in On create Method

if (Build.VERSION.SDK_INT >= 19 && Build.VERSION.SDK_INT < 21) {
    setWindowFlag(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS, true)
}
if (Build.VERSION.SDK_INT >= 19) {
    window.decorView.systemUiVisibility = View.SYSTEM_UI_FLAG_LAYOUT_STABLE or View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN
}
if (Build.VERSION.SDK_INT >= 21) {
    setWindowFlag(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS, false)
    window.statusBarColor = Color.TRANSPARENT
}

Step2: You Need SetWindowFlag method which describe in Below code.

private fun setWindowFlag(bits: Int, on: Boolean) {
    val win = window
    val winParams = win.attributes
    if (on) {
        winParams.flags = winParams.flags or bits
    } else {
        winParams.flags = winParams.flags and bits.inv()
    }
    win.attributes = winParams
}

Java code snippet for your android app:

Step1: Main Activity Code

if (Build.VERSION.SDK_INT >= 19 && Build.VERSION.SDK_INT < 21) {
    setWindowFlag(this, WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS, true);
}
if (Build.VERSION.SDK_INT >= 19) {
    getWindow().getDecorView().setSystemUiVisibility(View.SYSTEM_UI_FLAG_LAYOUT_STABLE | View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN);
}

if (Build.VERSION.SDK_INT >= 21) {
    setWindowFlag(this, WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS, false);
    getWindow().setStatusBarColor(Color.TRANSPARENT);
}

Step2: SetWindowFlag Method

public static void setWindowFlag(Activity activity, final int bits, boolean on) {
    Window win = activity.getWindow();
    WindowManager.LayoutParams winParams = win.getAttributes();
    if (on) {
        winParams.flags |= bits;
    } else {
        winParams.flags &= ~bits;
    }
    win.setAttributes(winParams);
}

Answer 5

Just add this line of code to your main java file:

getWindow().setFlags(
    WindowManager.LayoutParams.FLAG_LAYOUT_NO_LIMITS,
    WindowManager.LayoutParams.FLAG_LAYOUT_NO_LIMITS
);

Answer 6

While all the answers above circulate around the same fundamental idea and you can get it to work with simple layouts using one of the examples above. However I wanted to change the color of the background while using sliding 'full screen' (tab bar aside) fragment navigation and maintain regular navigation, tab and action bars.

After reading carefully an article by Anton Hadutski I had better understanding what is going on.

I have DrawerLayout with ConstraintLayout (i.e. container) which has Toolbar, include for the main fragment and BottomNavigationView.

Setting DrawerLayout having fitsSystemWindows to true isn't sufficient, you need to set both DrawerLayout and ConstraintLayout. Assuming transparent status bar, the status bar color is now the same as the background color of ConstraintLayout.

However, the included fragment has still the status bar inset, so animating another 'full screen' fragment on top of with doesn't change the color of the status bar.

A bit of code from the referred article into Activity's onCreate:

ViewCompat.setOnApplyWindowInsetsListener(findViewById(R.id.container)) { view, insets ->
        insets.replaceSystemWindowInsets(
                insets.systemWindowInsetLeft,
                0,
                insets.systemWindowInsetRight,
                insets.systemWindowInsetBottom
        )
    }

And all is good, except now the Toolbar doesn't address the status bar height. Some more referring to the article and we have a fully working solution:

val toolbar = findViewById<Toolbar>(R.id.my_toolbar)
    ViewCompat.setOnApplyWindowInsetsListener(findViewById(R.id.container)) { view, insets ->
        val params = toolbar.layoutParams as ViewGroup.MarginLayoutParams
        params.topMargin = insets.systemWindowInsetTop
        toolbar.layoutParams = params
        insets.replaceSystemWindowInsets(
                insets.systemWindowInsetLeft,
                0,
                insets.systemWindowInsetRight,
                insets.systemWindowInsetBottom
        )
    }

The main_activity.xml (please note that marginTop in Toolbar is for preview purposes, it will be replaced by the code):

<?xml version="1.0" encoding="utf-8"?>
    <androidx.drawerlayout.widget.DrawerLayout xmlns:android="http://schemas.android.com/apk/res/android"
        xmlns:app="http://schemas.android.com/apk/res-auto"
        android:id="@+id/drawer_layout"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:fitsSystemWindows="true"
        >

    <androidx.constraintlayout.widget.ConstraintLayout 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"
        android:id="@+id/container"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:background="@color/green"
        android:fitsSystemWindows="true"
        tools:context=".MainActivity">

        <androidx.appcompat.widget.Toolbar
            android:id="@+id/my_toolbar"
            android:layout_width="match_parent"
            android:layout_height="?attr/actionBarSize"
            app:layout_constraintTop_toTopOf="@id/container"
            android:layout_marginTop="26dp" 
            android:background="@android:color/transparent"
            ...>
            ...
        </androidx.appcompat.widget.Toolbar>

        <include layout="@layout/content_main" />
        ...
    </androidx.constraintlayout.widget.ConstraintLayout>
    ...
</androidx.drawerlayout.widget.DrawerLayout>