ChromeActivity.java 文件源码

@Override
public void finishNativeInitialization() {
    // The window background color is used as the resizing background color in Android N+
    // multi-window mode. See crbug.com/602366.
    if (Build.VERSION.CODENAME.equals("N") || Build.VERSION.SDK_INT > Build.VERSION_CODES.M) {
        getWindow().setBackgroundDrawable(new ColorDrawable(
                ApiCompatibilityUtils.getColor(getResources(),
                        R.color.resizing_background_color)));
    } else {
        removeWindowBackground();
    }
    DownloadManagerService.getDownloadManagerService(
            getApplicationContext()).onActivityLaunched();

    super.finishNativeInitialization();
}