Android商城购物车页面实现

package com.loocan.shpping; import android.annotation.TargetApi; import android.app.Activity; import android.content.Context; import android.graphics.Color; import android.os.Build; import android.support.annotation.ColorInt; import android.support.design.widget.CoordinatorLayout; 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. * <p> * Email: chjie.jaeger@gmail.com * GitHub: https://github.com/laobie */ public class StatusBarUtil { public static final int DEFAULT_STATUS_BAR_ALPHA = 112; private static final int FAKE_STATUS_BAR_VIEW_ID = R.id.statusbarutil_fake_status_bar_view; 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, 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, @ColorInt 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); ViewGroup decorView = (ViewGroup) activity.getWindow().getDecorView(); View fakeStatusBarView = decorView.findViewById(FAKE_STATUS_BAR_VIEW_ID); if (fakeStatusBarView != null) { if (fakeStatusBarView.getVisibility() == View.GONE) { fakeStatusBarView.setVisibility(View.VISIBLE); } fakeStatusBarView.setBackgroundColor(calculateStatusColor(color, statusBarAlpha)); } else { decorView.addView(createStatusBarView(activity, color, statusBarAlpha)); } setRootView(activity); } } /** * 为滑动返回界面设置状态栏颜色 * * @param activity 需要设置的activity * @param color 状态栏颜色值 */ public static void setColorForSwipeBack(Activity activity, int color) { setColorForSwipeBack(activity, color, DEFAULT_STATUS_BAR_ALPHA); } /** * 为滑动返回界面设置状态栏颜色 * * @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 setColorForSwipeBack(Activity activity, @ColorInt int color, int statusBarAlpha) { if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) { ViewGroup contentView = ((ViewGroup) activity.findViewById(android.R.id.content)); View rootView = contentView.getChildAt(0); int statusBarHeight = getStatusBarHeight(activity); if (rootView != null && rootView instanceof CoordinatorLayout) { final CoordinatorLayout coordinatorLayout = (CoordinatorLayout) rootView; if (Build.VERSION.SDK_INT < Build.VERSION_CODES.LOLLIPOP) { coordinatorLayout.setFitsSystemWindows(false); contentView.setBackgroundColor(calculateStatusColor(color, statusBarAlpha)); boolean isNeedRequestLayout = contentView.getPaddingTop() < statusBarHeight; if (isNeedRequestLayout) { contentView.setPadding(0, statusBarHeight, 0, 0); coordinatorLayout.post(new Runnable() { @Override public void run() { coordinatorLayout.requestLayout(); } }); } } else { coordinatorLayout.setStatusBarBackgroundColor(calculateStatusColor(color, statusBarAlpha)); } } else { contentView.setPadding(0, statusBarHeight, 0, 0); contentView.setBackgroundColor(calculateStatusColor(color, statusBarAlpha)); } setTransparentForWindow(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, @ColorInt 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 */ @Deprecated public static void setColorDiff(Activity activity, @ColorInt int color) { if (Build.VERSION.SDK_INT < Build.VERSION_CODES.KITKAT) { return; } transparentStatusBar(activity); ViewGroup contentView = (ViewGroup) activity.findViewById(android.R.id.content); // 移除半透明矩形,以免叠加 View fakeStatusBarView = contentView.findViewById(FAKE_STATUS_BAR_VIEW_ID); if (fakeStatusBarView != null) { if (fakeStatusBarView.getVisibility() == View.GONE) { fakeStatusBarView.setVisibility(View.VISIBLE); } fakeStatusBarView.setBackgroundColor(color); } else { contentView.addView(createStatusBarView(activity, color)); } setRootView(activity); } /** * 使状态栏半透明 * <p> * 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 * <p> * 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); } /** * 针对根布局是 CoordinatorLayout, 使状态栏半透明 * <p> * 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 setTranslucentForCoordinatorLayout(Activity activity, int statusBarAlpha) { if (Build.VERSION.SDK_INT < Build.VERSION_CODES.KITKAT) { return; } transparentStatusBar(activity); addTranslucentView(activity, statusBarAlpha); } /** * 设置状态栏全透明 * * @param activity 需要设置的activity */ public static void setTranspare