Java tutorial
/*Copyright 2016 Jaeger Chen * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package edu.com.mvplibrary.ui.widget; 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.WindowManager; import android.widget.LinearLayout; /** * Created by Jaeger on 16/2/14. * GitHub: {@see https://wwgithub.com/laobie} */ public class StatusBarUtil { public static final int DEFAULT_STATUS_BAR_ALPHA = 112; /** * ?? * * @param activity ? activity * @param color ?? */ public static void setColor(Activity activity, int color) { setColor(activity, color, DEFAULT_STATUS_BAR_ALPHA); } /** * ?? * * @param activity ?activity * @param color ?? * @param statusBarAlpha ??? */ 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); // ???? View statusView = createStatusBarView(activity, color, statusBarAlpha); // statusView ViewGroup decorView = (ViewGroup) activity.getWindow().getDecorView(); decorView.addView(statusView); setRootView(activity); } } /** * ?? ??? * * @param activity ? activity * @param color ?? */ public static void setColorNoTranslucent(Activity activity, int color) { setColor(activity, color, 0); } /** * ??(5.0??,?) * * @param activity ? activity * @param color ?? */ 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); // ???? View statusView = createStatusBarView(activity, color); // statusView ViewGroup decorView = (ViewGroup) activity.getWindow().getDecorView(); decorView.addView(statusView); setRootView(activity); } /** * ???? * <p/> * ?,??? * * @param activity ?activity */ public static void setTranslucent(Activity activity) { setTranslucent(activity, DEFAULT_STATUS_BAR_ALPHA); } /** * ???? * <p/> * ?,??? * * @param activity ?activity * @param statusBarAlpha ??? */ public static void setTranslucent(Activity activity, int statusBarAlpha) { if (Build.VERSION.SDK_INT < Build.VERSION_CODES.KITKAT) { return; } setTransparent(activity); addTranslucentView(activity, statusBarAlpha); } /** * ??? * * @param activity ?activity */ public static void setTransparent(Activity activity) { if (Build.VERSION.SDK_INT < Build.VERSION_CODES.KITKAT) { return; } transparentStatusBar(activity); setRootView(activity); } /** * ???(5.0??,?) * <p/> * ?,??? * * @param activity ?activity */ public static void setTranslucentDiff(Activity activity) { if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) { // ??? activity.getWindow().addFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS); setRootView(activity); } } /** * DrawerLayout ??? * * @param activity ?activity * @param drawerLayout DrawerLayout * @param color ?? */ public static void setColorForDrawerLayout(Activity activity, DrawerLayout drawerLayout, int color) { setColorForDrawerLayout(activity, drawerLayout, color, DEFAULT_STATUS_BAR_ALPHA); } /** * DrawerLayout ??, * * @param activity ?activity * @param drawerLayout DrawerLayout * @param color ?? */ public static void setColorNoTranslucentForDrawerLayout(Activity activity, DrawerLayout drawerLayout, int color) { setColorForDrawerLayout(activity, drawerLayout, color, 0); } /** * DrawerLayout ??? * * @param activity ?activity * @param drawerLayout DrawerLayout * @param color ?? * @param statusBarAlpha ??? */ 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); // statusBarView ViewGroup contentLayout = (ViewGroup) drawerLayout.getChildAt(0); contentLayout.addView(statusBarView, 0); // ? LinearLayout ,padding top if (!(contentLayout instanceof LinearLayout) && contentLayout.getChildAt(1) != null) { contentLayout.getChildAt(1).setPadding(0, getStatusBarHeight(activity), 0, 0); } // ViewGroup drawer = (ViewGroup) drawerLayout.getChildAt(1); drawerLayout.setFitsSystemWindows(false); contentLayout.setFitsSystemWindows(false); contentLayout.setClipToPadding(true); drawer.setFitsSystemWindows(false); addTranslucentView(activity, statusBarAlpha); } /** * DrawerLayout ???(5.0??,?) * * @param activity ?activity * @param drawerLayout DrawerLayout * @param color ?? */ 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); // ???? View statusBarView = createStatusBarView(activity, color); // statusBarView ViewGroup contentLayout = (ViewGroup) drawerLayout.getChildAt(0); contentLayout.addView(statusBarView, 0); // ? LinearLayout ,padding top if (!(contentLayout instanceof LinearLayout) && contentLayout.getChildAt(1) != null) { contentLayout.getChildAt(1).setPadding(0, getStatusBarHeight(activity), 0, 0); } // ViewGroup drawer = (ViewGroup) drawerLayout.getChildAt(1); drawerLayout.setFitsSystemWindows(false); contentLayout.setFitsSystemWindows(false); contentLayout.setClipToPadding(true); drawer.setFitsSystemWindows(false); } } /** * DrawerLayout ??? * * @param activity ?activity * @param drawerLayout DrawerLayout */ public static void setTranslucentForDrawerLayout(Activity activity, DrawerLayout drawerLayout) { setTranslucentForDrawerLayout(activity, drawerLayout, DEFAULT_STATUS_BAR_ALPHA); } /** * DrawerLayout ??? * * @param activity ?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); } /** * DrawerLayout ??? * * @param activity ?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().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); // ? LinearLayout ,padding top if (!(contentLayout instanceof LinearLayout) && contentLayout.getChildAt(1) != null) { contentLayout.getChildAt(1).setPadding(0, getStatusBarHeight(activity), 0, 0); } // ViewGroup drawer = (ViewGroup) drawerLayout.getChildAt(1); drawerLayout.setFitsSystemWindows(false); contentLayout.setFitsSystemWindows(false); contentLayout.setClipToPadding(true); drawer.setFitsSystemWindows(false); } /** * DrawerLayout ???(5.0??,?) * * @param activity ?activity * @param drawerLayout DrawerLayout */ public static void setTranslucentForDrawerLayoutDiff(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 drawerLayout.setFitsSystemWindows(false); } } /** * ??? * * @param activity ? activity * @param statusBarAlpha ? */ 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)); } /** * ?????? * * @param activity ? activity * @param color ?? * @return ??? */ 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; } /** * ???????? * * @param activity ?activity * @param color ?? * @param alpha ? * @return ??? */ 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; } /** * ? */ private static void setRootView(Activity activity) { ViewGroup rootView = (ViewGroup) ((ViewGroup) activity.findViewById(android.R.id.content)).getChildAt(0); rootView.setFitsSystemWindows(true); rootView.setClipToPadding(true); } /** * ??? */ @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); } } /** * ?? View * * @param alpha ? * @return ?? 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; } /** * ??? * * @param context context * @return ?? */ private static int getStatusBarHeight(Context context) { // ?? int resourceId = context.getResources().getIdentifier("status_bar_height", "dimen", "android"); return context.getResources().getDimensionPixelSize(resourceId); } /** * ?? * * @param color color * @param alpha alpha * @return ?? */ 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; } }