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沉浸式状态栏

MainActivity 代码

public class MainActivity extends Activity {

    boolean mDarkTextColor = true;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        mDarkTextColor = !mDarkTextColor;
        setStatusBarColor(mDarkTextColor);
    }

    public void setStatusBarColor(boolean darkTextColor) {
        Window window = getWindow();
        View view = window.getDecorView();

        window.clearFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS);
        window.addFlags(WindowManager.LayoutParams.FLAG_DRAWS_SYSTEM_BAR_BACKGROUNDS);

        window.setStatusBarColor(Color.TRANSPARENT);

        int nVisibility;
        if (darkTextColor) {
            nVisibility = View.SYSTEM_UI_FLAG_LIGHT_STATUS_BAR | View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN;
        } else {
            nVisibility = View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN;
        }

        view.setSystemUiVisibility(nVisibility);
    }

    public void onClickSetStatusTextColor(View view) {
        mDarkTextColor = !mDarkTextColor;
        setStatusBarColor(mDarkTextColor);
    }
}

activity_main.xml

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="#ffffff"
    android:orientation="vertical"
    tools:context=".MainActivity">

    <TextView
        android:layout_width="match_parent"
        android:layout_height="100dp"
        android:text="@string/_100dp"
        android:clipToPadding="true"
        android:fitsSystemWindows="true"
        android:textSize="30sp"
        android:textColor="@color/white"
        android:background="#FF009959" />

    <Button
        android:layout_width="100dp"
        android:layout_height="50dp"
        android:onClick="onClickSetStatusTextColor"
        android:background="#FFFF66FF"/>

</LinearLayout>

AndroidManifest.xml

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools">

    <application
        android:allowBackup="true"
        android:dataExtractionRules="@xml/data_extraction_rules"
        android:fullBackupContent="@xml/backup_rules"
        android:icon="@mipmap/ic_launcher"
        android:label="@string/app_name"
        android:roundIcon="@mipmap/ic_launcher_round"
        android:supportsRtl="true"
        android:theme="@android:style/Theme.Holo.Light.NoActionBar"
        tools:targetApi="31">
        <activity
            android:name=".MainActivity"
            android:exported="true">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
    </application>

点击红色button可以修改状态栏字体颜色（仅能设置黑色、白色）