StatusBarUtils.java
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package com.share.mvpsdk.utils;
import android.app.Activity;
import android.content.Context;
import android.graphics.Color;
import android.os.Build;
import android.support.annotation.ColorInt;
import android.support.v7.widget.Toolbar;
import android.view.View;
import android.view.ViewGroup;
import android.view.Window;
import android.view.WindowManager;
import java.lang.reflect.Field;
/**
* Created by Horrarndoo on 2017/8/31.
* <p>
* StatusBar工具类
*/
public class StatusBarUtils {
private static final int DEFAULT_STATUS_BAR_ALPHA = 0;
/**
* 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) {
setBarColor(activity, color);
}
/**
* 设置状态栏背景色
* 4.4以下不处理
* 4.4使用默认沉浸式状态栏
*
* @param color 要为状态栏设置的颜色值
*/
public static void setBarColor(Activity activity, int color) {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
Window win = activity.getWindow();
View decorView = win.getDecorView();
win.addFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS);//沉浸式状态栏(4.4-5.0透明，5.0以上半透明)
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {//android5.0以上设置透明效果
win.clearFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS);//清除flag，为了android5.0以上也全透明效果
//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;
int option = View.SYSTEM_UI_FLAG_LAYOUT_STABLE;
decorView.setSystemUiVisibility(decorView.getSystemUiVisibility() | option);
win.addFlags(WindowManager.LayoutParams.FLAG_DRAWS_SYSTEM_BAR_BACKGROUNDS);
win.setStatusBarColor(color);//设置状态栏背景色
}
}
}
/**
* 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;
}
setColor(activity, Color.TRANSPARENT);
}
/**
* 修正 Toolbar 的位置
* 在 Android 4.4 版本下无法显示内容在 StatusBar 下，所以无需修正 Toolbar 的位置
*
* @param toolbar
*/
public static void fixToolbar(Toolbar toolbar, Activity activity) {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
int statusHeight = getStatusBarHeight(activity);
ViewGroup.MarginLayoutParams layoutParams = (ViewGroup.MarginLayoutParams) toolbar.getLayoutParams();
layoutParams.setMargins(0, statusHeight, 0, 0);
}
}
/**
* 获取系统状态栏高度
*
* @param context
* @return
*/
public static int getStatusBarHeight(Context context) {
Class<?> c = null;
Object obj = null;
Field field = null;
int x = 0, statusBarHeight = 0;
try {
c = Class.forName("com.android.internal.R$dimen");
obj = c.newInstance();
field = c.getField("status_bar_height");
x = Integer.parseInt(field.get(obj).toString());
statusBarHeight = context.getResources().getDimensionPixelSize(x);
} catch (Exception e1) {
e1.printStackTrace();
}
return statusBarHeight;
}
// /**
// * 获取状态栏高度
// *
// * @param context context
// * @return 状态栏高度
// */
// private static int getStatusBarHeight(Context context) {
// // 获得状态栏高度
// int resourceId = context.getResources().getIdentifier("status_bar_height", "dimen",
// "android");
// return context.getResources().getDimensionPixelSize(resourceId);
// }
/**
* 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) {
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;
}
}