public class StatusBarUtil {
public static final String STATUS_BAR_TAG = "statusBar";
public static final int DEFAULT_STATUS_BAR_ALPHA = 112;
private static final int FAKE_TRANSLUCENT_VIEW_ID = R.id.statusbarutil_translucent_view;
private static final int TAG_KEY_HAVE_SET_OFFSET = -123;
/**
* 设置状态栏颜色
*
* @param activity 需要设置的 activity
* @param color 状态栏颜色值
*/
public static void setColor(Activity activity, @ColorInt int color) {
setColor(activity, color, false);
}
public static void setColor(Activity activity, @ColorInt int color, boolean useAlpha) {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
activity.getWindow().addFlags(WindowManager.LayoutParams.FLAG_DRAWS_SYSTEM_BAR_BACKGROUNDS);
activity.getWindow().clearFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS);
activity.getWindow().setStatusBarColor(calculateStatusColor(color, useAlpha ? Color.alpha(color) : 0));
} else if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
activity.getWindow().addFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS);
ViewGroup decorView = (ViewGroup) activity.getWindow().getDecorView();
decorView.addView(createStatusBarView(activity, color, useAlpha ? Color.alpha(color) : 0));
setRootView(activity);
}
}
/**
* 设置状态栏颜色
*
* @param activity 需要设置的 activity
*/
public static void setColor(Activity activity) {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
} else if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
activity.getWindow().addFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS);
ViewGroup decorView = (ViewGroup) activity.getWindow().getDecorView();
decorView.addView(createStatusBarView(activity, Color.TRANSPARENT, 0));
setRootView(activity);
}
}
//应用内容占用系统状态栏的空间
public static void setFullScreen(Activity activity) {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
//5.x开始需要把颜色设置透明，否则导航栏会呈现系统默认的浅灰色
Window window = activity.getWindow();
View decorView = window.getDecorView();
//两个 flag 要结合使用，表示让应用的主体内容占用系统状态栏的空间
int option = View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN
| View.SYSTEM_UI_FLAG_LAYOUT_STABLE;
decorView.setSystemUiVisibility(option);
window.addFlags(WindowManager.LayoutParams.FLAG_DRAWS_SYSTEM_BAR_BACKGROUNDS);
window.setStatusBarColor(Color.TRANSPARENT);
//导航栏颜色也可以正常设置
// window.setNavigationBarColor(Color.TRANSPARENT);
} else if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
Window window = activity.getWindow();
WindowManager.LayoutParams attributes = window.getAttributes();
int flagTranslucentStatus = WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS;
// int flagTranslucentNavigation = WindowManager.LayoutParams.FLAG_TRANSLUCENT_NAVIGATION;
attributes.flags |= flagTranslucentStatus;
// attributes.flags |= flagTranslucentNavigation;
window.setAttributes(attributes);
}
}
public static void setTransparentBar(Activity activity) {
// if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O_MR1) {
// activity.getWindow().getDecorView().setSystemUiVisibility(
// View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN | View.SYSTEM_UI_FLAG_LIGHT_NAVIGATION_BAR);
// activity.getWindow().setStatusBarColor(Color.TRANSPARENT);
// } else
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
activity.getWindow().getDecorView().setSystemUiVisibility(
View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN);
//状态栏背景透明
activity.getWindow().setStatusBarColor(Color.TRANSPARENT);
} else if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
activity.getWindow().addFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS);
ViewGroup decorView = (ViewGroup) activity.getWindow().getDecorView();
for (int i = 0; i < decorView.getChildCount(); i++) {
View view = decorView.getChildAt(i);
if (STATUS_BAR_TAG.equals(view.getTag())) {
decorView.removeViewAt(i);
return;
}
}
}
}
public static void setImage(Activity activity) {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
//5.0及以上，不设置透明状态栏，设置会有半透明阴影
activity.getWindow().clearFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS);
//是activity_main。xml中的图片可以沉浸到状态栏上
activity.getWindow().addFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_NAVIGATION);
//设置状态栏颜色透明。
activity.getWindow().setStatusBarColor(Color.TRANSPARENT);
} else if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
activity.getWindow().addFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS);
ViewGroup decorView = (ViewGroup) activity.getWindow().getDecorView();
for (int i = 0; i < decorView.getChildCount(); i++) {
View view = decorView.getChildAt(i);
if (STATUS_BAR_TAG.equals(view.getTag())) {
decorView.removeViewAt(i);
return;
}
}
}
}
public static int getStatusBarHeight(Context context) {
int result = 0;
int resId = context.getResources().getIdentifier("status_bar_height", "dimen", "android");
if (resId > 0) {
result = context.getResources().getDimensionPixelSize(resId);
}
return result;
}
/**
* 生成一个和状态栏大小相同的半透明矩形条
*
* @param activity 需要设置的activity
* @param color 状态栏颜色值
* @param alpha 透明值
* @return 状态栏矩形条
*/
private static View createStatusBarView(Activity activity, @ColorInt int color, int alpha) {
// 绘制一个和状态栏一样高的矩形
View statusBarView = new View(activity);
statusBarView.setTag(STATUS_BAR_TAG);
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 parent = (ViewGroup) activity.findViewById(android.R.id.content);
for (int i = 0, count = parent.getChildCount(); i < count; i++) {
View childView = parent.getChildAt(i);
if (childView instanceof ViewGroup) {
childView.setFitsSystemWindows(true);
((ViewGroup) childView).setClipToPadding(true);
}
}
}
/**
* 计算状态栏颜色
*
* @param color color值
* @param alpha alpha值
* @return 最终的状态栏颜色
*/
private static int calculateStatusColor(@ColorInt int color, int alpha) {
if (alpha == 0) {
return color;
}
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;
}
/**
* StatusBar设置为透明时，调用此方法给ToolBar 加padding
*/
public static void setStatusBarPadding(Toolbar toolbar) {
if (Build.VERSION.SDK_INT < Build.VERSION_CODES.KITKAT) {
// 不支持 4.4以下设备
return;
}
if (toolbar == null) {
return;
}
ViewGroup.LayoutParams layoutParams = toolbar.getLayoutParams();
int statusBarHeight = getStatusBarHeight(toolbar.getContext());
layoutParams.height = (int) toolbar.getContext().getResources().getDimension(R.dimen.actionbar_height) + (statusBarHeight);
toolbar.setPadding(0, statusBarHeight, 0, 0);
}
/**
* 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
*
* @param activity 需要设置的activity
*/
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
*
* @param activity 需要设置的activity
* @param statusBarAlpha 状态栏透明度
*/
public static void setTranslucent(Activity activity, @IntRange(from = 0, to = 255) 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
*
* @param activity 需要设置的activity
*/
public static void setTransparent(Activity activity) {
if (Build.VERSION.SDK_INT < Build.VERSION_CODES.KITKAT) {
return;
}
transparentStatusBar(activity);
setRootView(activity);
}
/**
* 为头部是 ImageView 的界面设置状态栏全透明
*
* @param activity 需要设置的activity
* @param needOffsetView 需要向下偏移的 View
*/
public static void setTransparentForImageView(Activity activity, View needOffsetView) {
setTranslucentForImageView(activity, 0, needOffsetView);
}
/**
* 为头部是 ImageView 的界面设置状态栏透明(使用默认透明度)
*
* @param activity 需要设置的activity
* @param needOffsetView 需要向下偏移的 View
*/
public static void setTranslucentForImageView(Activity activity, View needOffsetView) {
setTranslucentForImageView(activity, DEFAULT_STATUS_BAR_ALPHA, needOffsetView);
}
/**
* 为头部是 ImageView 的界面设置状态栏透明
*
* @param activity 需要设置的activity
* @param statusBarAlpha 状态栏透明度
* @param needOffsetView 需要向下偏移的 View
*/
public static void setTranslucentForImageView(Activity activity, @IntRange(from = 0, to = 255) int statusBarAlpha,
View needOffsetView) {
if (Build.VERSION.SDK_INT < Build.VERSION_CODES.KITKAT) {
return;
}
setTransparentForWindow(activity);
addTranslucentView(activity, statusBarAlpha);
if (needOffsetView != null) {
Object haveSetOffset = needOffsetView.getTag(TAG_KEY_HAVE_SET_OFFSET);
if (haveSetOffset != null && (Boolean) haveSetOffset) {
return;
}
ViewGroup.MarginLayoutParams layoutParams = (ViewGroup.MarginLayoutParams) needOffsetView.getLayoutParams();
layoutParams.setMargins(layoutParams.leftMargin, layoutParams.topMargin + getStatusBarHeight(activity),
layoutParams.rightMargin, layoutParams.bottomMargin);
needOffsetView.setTag(TAG_KEY_HAVE_SET_OFFSET, true);
}
}
/**
* 设置透明
*/
private static void setTransparentForWindow(Activity activity) {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
activity.getWindow().setStatusBarColor(Color.TRANSPARENT);
activity.getWindow()
.getDecorView()
.setSystemUiVisibility(View.SYSTEM_UI_FLAG_LAYOUT_STABLE | View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN);
} else if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
activity.getWindow()
.setFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS, WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS);
}
}
/**
* 添加半透明矩形条
*
* @param activity 需要设置的 activity
* @param statusBarAlpha 透明值
*/
private static void addTranslucentView(Activity activity, @IntRange(from = 0, to = 255) int statusBarAlpha) {
ViewGroup contentView = (ViewGroup) activity.findViewById(android.R.id.content);
View fakeTranslucentView = contentView.findViewById(FAKE_TRANSLUCENT_VIEW_ID);
if (fakeTranslucentView != null) {
if (fakeTranslucentView.getVisibility() == View.GONE) {
fakeTranslucentView.setVisibility(View.VISIBLE);
}
fakeTranslucentView.setBackgroundColor(Color.argb(statusBarAlpha, 0, 0, 0));
} else {
contentView.addView(createTranslucentStatusBarView(activity, statusBarAlpha));
}
}
/**
* 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().addFlags(WindowManager.LayoutParams.FLAG_DRAWS_SYSTEM_BAR_BACKGROUNDS);
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
*
* @param alpha 透明值
* @return 半透明 View
*/
private static View createTranslucentStatusBarView(Activity activity, int alpha) {
// 绘制一个和状态栏一样高的矩形
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));
statusBarView.setId(FAKE_TRANSLUCENT_VIEW_ID);
return statusBarView;
}
}
