从DialogFragment设置状态栏颜色 [英] Set status bar color from DialogFragment

问题描述

我正在创建一个可动态更改状态栏颜色的应用程序.

I'm creating an app which changes status bar color dynamically.

从任何片段中调用时，主Activity类中的我的方法都可以正常工作.片段放置在活动"寻呼机中:

My method in main Activity class works fine when called from any fragment. Fragments are placed in Activity pager:

public void setStatusBarColorIfPossible(int color) {
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
        getWindow().setStatusBarColor(color);
    }
}

但是，在任何片段中创建并全屏显示的DialogFragment中，调用我的方法无效.状态栏立即变为黑色(如在styles.xml中设置的那样)，我无法更改.

However, in DialogFragment which is created in any fragment and made fullscreen, calling my method has no effect. Status bar is instantly black (as set in styles.xml) and I can't change it.

public class AddOrEditWeekPlanDialog extends DialogFragment {

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setStyle(DialogFragment.STYLE_NORMAL, R.style.MyDialog);
    }

    @Override
    public void onStart() {
        super.onStart();
        Dialog d = getDialog();
        if (d!=null){
            int width = ViewGroup.LayoutParams.MATCH_PARENT;
            int height = ViewGroup.LayoutParams.MATCH_PARENT;
            d.getWindow().setLayout(width, height);
        }
    }

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
        View root = inflater.inflate(R.layout.fragment_dialog, container, false);
        Button button = (Button)root.findViewById(R.id.button);
        button.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                ((ThermostatActivity) getActivity()).setStatusBarColorIfPossible(0xFF0D47A1);
            }
        });

        return root;
    }

    @Override
    public void onResume() {
        super.onResume();

    }
}

styles.xml:

styles.xml:

// Set in manifest for main activity
<style name="AppTheme" parent="Theme.AppCompat.Light.NoActionBar">
    <item name="colorPrimary">@color/colorPrimary</item>
    <item name="colorPrimaryDark">@color/colorPrimaryDark</item>
</style>

// Set in dialog class
<style name="MyDialog" parent="Theme.AppCompat.Light.NoActionBar">
    <item name="android:windowIsFloating">false</item>
    <item name="colorPrimaryDark">@color/colorPrimaryDark</item>
</style>

resources.xml:

resources.xml:

<resources>
    <color name="colorPrimary">#FFB72020</color>
    <color name="colorPrimaryDark">#000</color>
    <color name="textColor">#fff</color>
    <color name="tabsScrollColor">#fff</color>
</resources>

任何人都可以解释我为什么?

Anyone can explain me why?

推荐答案

要设置setStatusBarColor，您需要设置标志:FLAG_DRAWS_SYSTEM_BAR_BACKGROUNDS

In order to setStatusBarColor you need to set the flag: FLAG_DRAWS_SYSTEM_BAR_BACKGROUNDS

标志，指示此窗口负责绘制系统栏的背景." (Google API级别21)

"Flag indicating that this Window is responsible for drawing the background for the system bars." (Google API level 21)

尝试以下代码:

public void setStatusBarColorIfPossible(int color) {
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
       getWindow().addFlags(WindowManager.LayoutParams.FLAG_DRAWS_SYSTEM_BAR_BACKGROUNDS);
       getWindow().setStatusBarColor(color);
    }
}

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