安卓沉浸式状态栏

实现Activity嵌套fragment，不同fragment顶部实现不同的效果(图片沉浸状态栏，设置不同颜色的状态栏)

效果图

1. 首先在Activity的onCreate(Bundle savedInstanceState)方法中setContentView(R.layout.xxx)下面设置动态显示隐藏状态栏

if (Build.VERSION. SDK_INT >= 21) {
     View decorView = getWindow().getDecorView();
     int option = View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN | View.SYSTEM_UI_FLAG_LAYOUT_STABLE;
     decorView.setSystemUiVisibility(option);
     getWindow().setStatusBarColor(Color.TRANSPARENT);//状态栏透明
}

 

2.上面设置会导致顶部布局被状态栏遮挡住，所以我们需要写一个View，高度等于状态栏的高度,将布局标题显示出来
在具体xml中加入下面代码

并通过java代码获取状态栏高度

  View view = inflater.inflate(R.layout.fragment_first, container, false);
  View mStateBar = view.findViewById( R.id.status_bar);
  mStateBar.setLayoutParams(new LinearLayout.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT,StatusBarUtil.getStatusBarHeight(getActivity())));//填充状态栏
 

工具类 (StatusBarUtil类是网上找的)

import android.annotation.SuppressLint;
import android.app.Activity;
import android.content.Context;
import android.os.Build;
import android.view.View;
import android.view.Window;
import android.view.WindowManager;

import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.reflect.Field;
import java.lang.reflect.Method;

import androidx.annotation.IntDef;

public class StatusBarUtil {
    public final static int TYPE_MIUI = 0;
    public final static int TYPE_FLYME = 1;
    public final static int TYPE_M = 3;//6.0

    @IntDef({TYPE_MIUI,
            TYPE_FLYME,
            TYPE_M})
    @Retention(RetentionPolicy.SOURCE)
    @interface ViewType {
    }
    
    public static boolean setStatusBarDarkTheme(Activity activity, boolean dark) {
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
                setStatusBarFontIconDark(activity, TYPE_M, dark);
            } else if (OSUtils.isMiui()) {
                setStatusBarFontIconDark(activity, TYPE_MIUI, dark);
            } else if (OSUtils.isFlyme()) {
                setStatusBarFontIconDark(activity, TYPE_FLYME, dark);
            } else {//其他情况
                return false;
            }

            return true;
        }
        return false;
    }

    
    public static boolean setStatusBarFontIconDark(Activity activity, @ViewType int type,boolean dark) {
        switch (type) {
            case TYPE_MIUI:
                return setMiuiUI(activity, dark);
            case TYPE_FLYME:
                return setFlymeUI(activity, dark);
            case TYPE_M:
            default:
                return setCommonUI(activity,dark);
        }
    }

    //设置6.0 状态栏深色浅色切换
    public static boolean setCommonUI(Activity activity, boolean dark) {
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
            View decorView = activity.getWindow().getDecorView();
            if (decorView != null) {
                int vis = decorView.getSystemUiVisibility();
                if (dark) {
                    vis |= View.SYSTEM_UI_FLAG_LIGHT_STATUS_BAR;
                } else {
                    vis &= ~View.SYSTEM_UI_FLAG_LIGHT_STATUS_BAR;
                }
                if (decorView.getSystemUiVisibility() != vis) {
                    decorView.setSystemUiVisibility(vis);
                }
                return true;
            }
        }
        return false;

    }

    //设置Flyme 状态栏深色浅色切换
    public static boolean setFlymeUI(Activity activity, boolean dark) {
        try {
            Window window = activity.getWindow();
            WindowManager.LayoutParams lp = window.getAttributes();
            Field darkFlag = WindowManager.LayoutParams.class.getDeclaredField("MEIZU_FLAG_DARK_STATUS_BAR_ICON");
            Field meizuFlags = WindowManager.LayoutParams.class.getDeclaredField("meizuFlags");
            darkFlag.setAccessible(true);
            meizuFlags.setAccessible(true);
            int bit = darkFlag.getInt(null);
            int value = meizuFlags.getInt(lp);
            if (dark) {
                value |= bit;
            } else {
                value &= ~bit;
            }
            meizuFlags.setInt(lp, value);
            window.setAttributes(lp);
            return true;
        } catch (Exception e) {
            e.printStackTrace();
            return false;
        }
    }

    //设置MIUI 状态栏深色浅色切换
    public static boolean setMiuiUI(Activity activity, boolean dark) {
        try {
            Window window = activity.getWindow();
            Class clazz = activity.getWindow().getClass();
            @SuppressLint("PrivateApi") Class layoutParams = Class.forName("android.view.MiuiWindowManager$LayoutParams");
            Field field = layoutParams.getField("EXTRA_FLAG_STATUS_BAR_DARK_MODE");
            int darkModeFlag = field.getInt(layoutParams);
            Method extraFlagField = clazz.getDeclaredMethod("setExtraFlags", int.class, int.class);
            extraFlagField.setAccessible(true);
            if (dark) {    //状态栏亮色且黑色字体
                extraFlagField.invoke(window, darkModeFlag, darkModeFlag);
            } else {
                extraFlagField.invoke(window, 0, darkModeFlag);
            }
            return true;
        } catch (Exception e) {
            e.printStackTrace();
            return false;
        }
    }
    
    //获取状态栏高度
    public static int getStatusBarHeight(Context context) {
        int result = 0;
        int resourceId = context.getResources().getIdentifier(
                "status_bar_height", "dimen", "android");
        if (resourceId > 0) {
            result = context.getResources().getDimensionPixelSize(resourceId);
        }
        return result;
    }
}

状态栏默认字体是白色,我们可以在Activiy当中点击切换不同fragment中设置白色 黑色字体切换

 switch (getmDefaultShow) {
            case first:
        
                StatusBarUtil.setStatusBarDarkTheme(this, false);
                break;
            case second:
               
                StatusBarUtil.setStatusBarDarkTheme(this, false);
                break;
            case third:
               
                StatusBarUtil.setStatusBarDarkTheme(this, false);
            break;
            case forth:
              //黑色字体
                StatusBarUtil.setStatusBarDarkTheme(this, true);
                break;
        }