android - 透明导航栏但不是状态栏

android - Transparent Navigation Bar but not Status Bar

我不确定是否可行,但我正在尝试使导航栏透明而不使状态栏透明。后者的原因是我有一个工具栏,否则会在状态栏后面绘制。

现在我正在使用 fakeStatusBar 布局,它显示在状态栏之前,所以一切对用户来说都很好:

    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT){
        Window window = getWindow();
        window.setFlags(WindowManager.LayoutParams.FLAG_LAYOUT_NO_LIMITS, WindowManager.LayoutParams.FLAG_LAYOUT_NO_LIMITS);

        //now the status bar is transparent too, which we have to fix

        //first we get status bar height
        int statusBarHeight = 0;
        int resourceId = getResources().getIdentifier("status_bar_height", "dimen", "android");
        if (resourceId > 0) {
            statusBarHeight = getResources().getDimensionPixelSize(resourceId);
        }

        //then we get the full width
        Display display = getWindowManager().getDefaultDisplay();
        Point size = new Point();
        display.getSize(size);
        int screenWidth = size.x;

        //then we set that height to the fake item in the layout
        LinearLayout fakeStatusBar = findViewById(R.id.fakeStatusBar);
        ViewGroup.LayoutParams params = fakeStatusBar.getLayoutParams();
        params.height = statusBarHeight;
        params.width = screenWidth;
        fakeStatusBar.setLayoutParams(params);

唯一的问题是在进行多任务处理时,缩略图看起来不太好,因为工具栏不在应有的位置。

不完全是我想要的,但我找到了使用半透明导航栏的解决方法。最终代码如下所示:

    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT){

        //set navigation bar translucent
        Window window = getWindow();
        window.setFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_NAVIGATION, WindowManager.LayoutParams.FLAG_TRANSLUCENT_NAVIGATION);
        //now the status bar is translucent too, which we have to fix

        //first we get status bar height
        int statusBarHeight = 0;
        int resourceId = getResources().getIdentifier("status_bar_height", "dimen", "android");
        if (resourceId > 0) {
            statusBarHeight = getResources().getDimensionPixelSize(resourceId);
        }

        //then set it as top padding for the main layout
        ConstraintLayout mainLayout = (ConstraintLayout) findViewById(R.id.mainLayout);
        mainLayout.setPadding(0,statusBarHeight,0,0);
    }

activity.

的主布局中添加了顶部内边距

如果有人知道如何用透明导航栏做类似的事情,那就完美了,但除此之外我对我的解决方案很满意。