安卓状态栏颜色改变
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在安卓App开发中,5.0以上的系统状态栏的颜色改变比较容易,这里主要学习4.4的系统状态栏颜色的改变。
在app欢迎页中 ,我们需要整个页面占据状态栏,接下来实现这个效果:
5.0以上系统,在style文件添加
<item name="windowActionBar">false</item><item name="windowNoTitle">true</item><item name="android:windowTranslucentStatus">false</item><item name="android:windowTranslucentNavigation">true</item><item name="android:statusBarColor">@android:color/transparent</item>
4.4以上系统:
新建values-v19,在style文件中添加
<item name="windowActionBar">false</item><item name="windowNoTitle">true</item><item name="android:windowTranslucentStatus">true</item><item name="android:windowTranslucentNavigation">true</item>
接下来提供一个非常好用的状态栏工具类,主要是针对4.4的,有了这个类 ,以后就可以随意设置状态栏的颜色了。而且还可以改变DrawerLayout状态栏的颜色。
package com.android.core.control;import android.annotation.TargetApi;import android.app.Activity;import android.content.Context;import android.graphics.Color;import android.os.Build;import android.support.v4.widget.DrawerLayout;import android.view.View;import android.view.ViewGroup;import android.view.Window;import android.view.WindowManager;import android.widget.LinearLayout;/** * @author: 蜡笔小新 * @date: 2016-05-26 17:41 * @GitHub: https://github.com/meikoz */public class StatusBarUtil { public static final int DEFAULT_STATUS_BAR_ALPHA = 112; /** * 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, int color) { setColor(activity, color, DEFAULT_STATUS_BAR_ALPHA); } /** * 设置状态栏颜色 * * @param activity 需要设置的activity * @param color 状态栏颜色值 * @param statusBarAlpha 状态栏透明度 */ public static void setColor(Activity activity, int color, int statusBarAlpha) { 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, 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 * * @param activity 需要设置的 activity * @param color 状态栏颜色值 */ 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) * * @param activity 需要设置的 activity * @param color 状态栏颜色值 */ public static void setColorDiff(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 * * @param activity 需要设置的activity */ public static void setTranslucent(Activity activity) { setTranslucent(activity, DEFAULT_STATUS_BAR_ALPHA); } public static void setTranslucentBackground(Activity activity) { if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) { Window window = activity.getWindow(); window.setFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS, WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS); } } /** * 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, 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); } /** * 使状态栏透明(5.0以上半透明效果,不建议使用) * * 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 setTranslucentDiff(Activity activity) { if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) { // 设置状态栏透明 activity.getWindow().addFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS); setRootView(activity); } } /** * 为DrawerLayout 布局设置状态栏变色 * * @param activity 需要设置的activity * @param drawerLayout DrawerLayout * @param color 状态栏颜色值 */ 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 * * @param activity 需要设置的activity * @param drawerLayout DrawerLayout * @param color 状态栏颜色值 */ 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 * * @param activity 需要设置的activity * @param drawerLayout DrawerLayout * @param color 状态栏颜色值 * @param statusBarAlpha 状态栏透明度 */ 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().addFlags(WindowManager.LayoutParams.FLAG_DRAWS_SYSTEM_BAR_BACKGROUNDS); activity.getWindow().clearFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS); activity.getWindow().setStatusBarColor(Color.TRANSPARENT); } else { activity.getWindow().addFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS); } // 生成一个状态栏大小的矩形 View statusBarView = createStatusBarView(activity, color); // 添加 statusBarView 到布局中 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) * * @param activity 需要设置的activity * @param drawerLayout DrawerLayout * @param color 状态栏颜色值 */ public static void setColorForDrawerLayoutDiff(Activity activity, DrawerLayout drawerLayout, int color) { 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 statusBarView = createStatusBarView(activity, color); // 添加 statusBarView 到布局中 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 * * @param activity 需要设置的activity * @param drawerLayout DrawerLayout */ 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 * * @param activity 需要设置的activity * @param drawerLayout DrawerLayout */ 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 * * @param activity 需要设置的activity * @param drawerLayout DrawerLayout */ 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().addFlags(WindowManager.LayoutParams.FLAG_DRAWS_SYSTEM_BAR_BACKGROUNDS); 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) * * @param activity 需要设置的activity * @param drawerLayout DrawerLayout */ public static void setTranslucentForDrawerLayoutDiff(Activity activity, DrawerLayout drawerLayout) { if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) { // 设置状态栏透明 activity.getWindow().addFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS); // 设置内容布局属性 ViewGroup contentLayout = (ViewGroup) drawerLayout.getChildAt(0); contentLayout.setFitsSystemWindows(true); contentLayout.setClipToPadding(true); // 设置抽屉布局属性 ViewGroup vg = (ViewGroup) drawerLayout.getChildAt(1); vg.setFitsSystemWindows(false); // 设置 DrawerLayout 属性 drawerLayout.setFitsSystemWindows(false); } } /** * 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, int statusBarAlpha) { ViewGroup contentView = (ViewGroup) activity.findViewById(android.R.id.content); // 移除半透明矩形,以免叠加 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 * * @param activity 需要设置的 activity * @param color 状态栏颜色值 * @return 状态栏矩形条 */ private static View createStatusBarView(Activity activity, int color) { // 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); return statusBarView; } /** * 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, int color, 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(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().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)); return statusBarView; } /** * 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(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; }}
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