安卓开发操作状态栏的工具类

1.通过该工具类可以实现对状态栏的操作，颜色透明度的改变等等
2.可以实现沉浸式状态栏

public class TintBarUtil {
//alpha(0-255)
public static final int DEFAULT_STATUS_BAR_ALPHA = 112;

/**
 * 设置状态栏颜色
 */
public static void setColor(Activity activity, int color) {
        setColor(activity, color, DEFAULT_STATUS_BAR_ALPHA);
    }

/**
 * 设置状态栏颜色
 */
public static void setColor(Activity activity, int color, int statusBarAlpha) {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
            activity.getWindow().clearFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS);
            activity.getWindow().setStatusBarColor(calculateStatusColor(color, statusBarAlpha));
        } else if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
            activity.getWindow().addFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS);
// 生成一个状态栏大小的矩形
            View statusView = createStatusBarView(activity, color, statusBarAlpha);
// 添加 statusView 到布局中
            ViewGroup decorView = (ViewGroup) activity.getWindow().getDecorView();
            decorView.addView(statusView);
            setRootView(activity);
        }
    }

/**
 * 设置状态栏纯色 不加半透明效果
 */
public static void setColorNoTranslucent(Activity activity, int color) {
        setColor(activity, color, 0);
    }

/**
 * 设置状态栏颜色(5.0以下无半透明效果,不建议使用)
 */
public static void setColorHalf(Activity activity, int color) {
if (Build.VERSION.SDK_INT < Build.VERSION_CODES.KITKAT) {
return;
        }
        activity.getWindow().addFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS);
// 生成一个状态栏大小的矩形
        View statusView = createStatusBarView(activity, color);
// 添加 statusView 到布局中
        ViewGroup decorView = (ViewGroup) activity.getWindow().getDecorView();
        decorView.addView(statusView);
        setRootView(activity);
    }

/**
 * 使状态栏半透明
 * 适用于图片作为背景的界面,此时需要图片填充到状态栏
 */
public static void setTranslucent(Activity activity) {
        setTranslucent(activity, DEFAULT_STATUS_BAR_ALPHA);
    }

/**
 * 使状态栏半透明
 * 适用于图片作为背景的界面,此时需要图片填充到状态栏
 */
public static void setTranslucent(Activity activity, int statusBarAlpha) {
if (Build.VERSION.SDK_INT < Build.VERSION_CODES.KITKAT) {
return;
        }
        setTransparent(activity);
        addTranslucentView(activity, statusBarAlpha);
    }

/**
 * 设置状态栏全透明
 */
public static void setTransparent(Activity activity) {
if (Build.VERSION.SDK_INT < Build.VERSION_CODES.KITKAT) {
return;
        }
        transparentStatusBar(activity);
        setRootView(activity);
    }

/**
 * 使状态栏透明(5.0以上半透明效果,不建议使用)
 */
public static void setTranslucentHalf(Activity activity) {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
            activity.getWindow().addFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS);
            setRootView(activity);
        }
    }

/**
 * 为DrawerLayout 布局设置状态栏变色
 */
public static void setColorForDrawerLayout(Activity activity, DrawerLayout drawerLayout, int color) {
        setColorForDrawerLayout(activity, drawerLayout, color, DEFAULT_STATUS_BAR_ALPHA);
    }

/**
 * 为DrawerLayout 布局设置状态栏颜色,纯色
 */
public static void setColorNoTranslucentForDrawerLayout(Activity activity, DrawerLayout drawerLayout, int color) {
        setColorForDrawerLayout(activity, drawerLayout, color, 0);
    }

/**
 * 为DrawerLayout 布局设置状态栏变色
 */
public static void setColorForDrawerLayout(Activity activity, DrawerLayout drawerLayout, int color, int statusBarAlpha) {
if (Build.VERSION.SDK_INT < Build.VERSION_CODES.KITKAT) {
return;
        }
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
            activity.getWindow().clearFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS);
            activity.getWindow().setStatusBarColor(Color.TRANSPARENT);
        } else {
            activity.getWindow().addFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS);
        }
        View statusBarView = createStatusBarView(activity, color);
        ViewGroup contentLayout = (ViewGroup) drawerLayout.getChildAt(0);
        contentLayout.addView(statusBarView, 0);
// 内容布局不是 LinearLayout 时,设置padding top
if (!(contentLayout instanceof LinearLayout) && contentLayout.getChildAt(1) != null) {
            contentLayout.getChildAt(1).setPadding(0, getStatusBarHeight(activity), 0, 0);
        }
// 设置属性
        ViewGroup drawer = (ViewGroup) drawerLayout.getChildAt(1);
        drawerLayout.setFitsSystemWindows(false);
        contentLayout.setFitsSystemWindows(false);
        contentLayout.setClipToPadding(true);
        drawer.setFitsSystemWindows(false);

        addTranslucentView(activity, statusBarAlpha);
    }

/**
 * 为DrawerLayout 布局设置状态栏变色(5.0以下无半透明效果,不建议使用)
 */
public static void setColorForDrawerLayoutHalf(Activity activity, DrawerLayout drawerLayout, int color) {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
            activity.getWindow().addFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS);
            View statusBarView = createStatusBarView(activity, color);
            ViewGroup contentLayout = (ViewGroup) drawerLayout.getChildAt(0);
            contentLayout.addView(statusBarView, 0);
// 内容布局不是 LinearLayout 时,设置padding top
if (!(contentLayout instanceof LinearLayout) && contentLayout.getChildAt(1) != null) {
                contentLayout.getChildAt(1).setPadding(0, getStatusBarHeight(activity), 0, 0);
            }
// 设置属性
            ViewGroup drawer = (ViewGroup) drawerLayout.getChildAt(1);
            drawerLayout.setFitsSystemWindows(false);
            contentLayout.setFitsSystemWindows(false);
            contentLayout.setClipToPadding(true);
            drawer.setFitsSystemWindows(false);
        }
    }

/**
 * 为 DrawerLayout 布局设置状态栏透明
 */
public static void setTranslucentForDrawerLayout(Activity activity, DrawerLayout drawerLayout) {
        setTranslucentForDrawerLayout(activity, drawerLayout, DEFAULT_STATUS_BAR_ALPHA);
    }

/**
 * 为 DrawerLayout 布局设置状态栏透明
 */
public static void setTranslucentForDrawerLayout(Activity activity, DrawerLayout drawerLayout, int statusBarAlpha) {
if (Build.VERSION.SDK_INT < Build.VERSION_CODES.KITKAT) {
return;
        }
        setTransparentForDrawerLayout(activity, drawerLayout);
        addTranslucentView(activity, statusBarAlpha);
    }

/**
 * 为 DrawerLayout 布局设置状态栏透明
 */
public static void setTransparentForDrawerLayout(Activity activity, DrawerLayout drawerLayout) {
if (Build.VERSION.SDK_INT < Build.VERSION_CODES.KITKAT) {
return;
        }
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
            activity.getWindow().clearFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS);
            activity.getWindow().setStatusBarColor(Color.TRANSPARENT);
        } else {
            activity.getWindow().addFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS);
        }

        ViewGroup contentLayout = (ViewGroup) drawerLayout.getChildAt(0);
// 内容布局不是 LinearLayout 时,设置padding top
if (!(contentLayout instanceof LinearLayout) && contentLayout.getChildAt(1) != null) {
            contentLayout.getChildAt(1).setPadding(0, getStatusBarHeight(activity), 0, 0);
        }

// 设置属性
        ViewGroup drawer = (ViewGroup) drawerLayout.getChildAt(1);
        drawerLayout.setFitsSystemWindows(false);
        contentLayout.setFitsSystemWindows(false);
        contentLayout.setClipToPadding(true);
        drawer.setFitsSystemWindows(false);
    }

/**
 * 为 DrawerLayout 布局设置状态栏透明(5.0以上半透明效果,不建议使用)
 */
public static void setTranslucentForDrawerLayoutHalf(Activity activity, DrawerLayout drawerLayout) {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
            activity.getWindow().addFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS);
            ViewGroup contentLayout = (ViewGroup) drawerLayout.getChildAt(0);
            contentLayout.setFitsSystemWindows(true);
            contentLayout.setClipToPadding(true);
            ViewGroup vg = (ViewGroup) drawerLayout.getChildAt(1);
            vg.setFitsSystemWindows(false);
            drawerLayout.setFitsSystemWindows(false);
        }
    }

/**
 * 添加半透明矩形条
 */
private static void addTranslucentView(Activity activity, int statusBarAlpha) {
        ViewGroup contentView = (ViewGroup) activity.findViewById(android.R.id.content);
if (contentView.getChildCount() > 1) {
            contentView.removeViewAt(1);
        }
        contentView.addView(createTranslucentStatusBarView(activity, statusBarAlpha));
    }

/**
 * 生成一个和状态栏大小相同的彩色矩形条
 */
private static View createStatusBarView(Activity activity, int color) {
        View statusBarView = new View(activity);
        LinearLayout.LayoutParams params = new LinearLayout.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT,
                getStatusBarHeight(activity));
        statusBarView.setLayoutParams(params);
        statusBarView.setBackgroundColor(color);
return statusBarView;
    }

/**
 * 生成一个和状态栏大小相同的半透明矩形条
 */
private static View createStatusBarView(Activity activity, int color, int alpha) {
        View statusBarView = new View(activity);
        LinearLayout.LayoutParams params = new LinearLayout.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT,
                getStatusBarHeight(activity));
        statusBarView.setLayoutParams(params);
        statusBarView.setBackgroundColor(calculateStatusColor(color, alpha));
return statusBarView;
    }

/**
 * 设置根布局参数
 */
private static void setRootView(Activity activity) {
        ViewGroup rootView = (ViewGroup) ((ViewGroup) activity.findViewById(android.R.id.content)).getChildAt(0);
        rootView.setFitsSystemWindows(true);
        rootView.setClipToPadding(true);
    }

/**
 * 使状态栏透明
 */
@TargetApi(Build.VERSION_CODES.KITKAT)
private static void transparentStatusBar(Activity activity) {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
            activity.getWindow().clearFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS);
            activity.getWindow().addFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_NAVIGATION);
            activity.getWindow().setStatusBarColor(Color.TRANSPARENT);
        } else {
            activity.getWindow().addFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS);
        }
    }

/**
 * 创建半透明矩形 View
 */
private static View createTranslucentStatusBarView(Activity activity, int alpha) {
        View statusBarView = new View(activity);
        LinearLayout.LayoutParams params = new LinearLayout.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT,
                getStatusBarHeight(activity));
        statusBarView.setLayoutParams(params);
        statusBarView.setBackgroundColor(Color.argb(alpha, 0, 0, 0));
return statusBarView;
    }

/**
 * 获取状态栏高度
 */
private static int getStatusBarHeight(Context context) {
int resourceId = context.getResources().getIdentifier("status_bar_height", "dimen", "android");
return context.getResources().getDimensionPixelSize(resourceId);
    }

/**
 * 计算状态栏颜色
 */
private static int calculateStatusColor(int color, int alpha) {
float a = 1 - alpha / 255f;
int red = color >> 16 & 0xff;
int green = color >> 8 & 0xff;
int blue = color & 0xff;
        red = (int) (red * a + 0.5);
        green = (int) (green * a + 0.5);
        blue = (int) (blue * a + 0.5);
return 0xff << 24 | red << 16 | green << 8 | blue;
    }
}