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聊天界面标题栏被顶上去解决方法

17-12-08 来源：[db:作者]

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由于我用了沉浸式状态栏，导致在Androidmanifest中这样设置（融云的聊天界面通常设置）键盘遮盖了输入框

但是如果使用
android:windowSoftInputMode="stateHidden|adjustPan" 又会导致标题栏被顶到界面以外，刚开始不知道是由于沉浸式状态栏引起的，感觉融云这么弄挺蠢的，后来发现是自己挺蠢的。

解决方法：仍使用沉浸式状态栏（直接设置了状态栏的颜色），在聊天界面的根布局添加android:fitsSystemWindows="true" 想了想还是贴上具体代码，以备后用

Androidmanifest：

xml布局：

activity中：

 @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_conversation);
        ButterKnife.bind(this);
        StatusBarUtil.setColor(this, UIUtils.getColor(R.color.main_yellow), 0);
    }

其中StatusBarUtil类是个工具类

package com.jaeger.library;

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.annotation.IntRange;
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.
 *

* 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, @IntRange(from = 0, to = 255) 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, @IntRange(from = 0, to = 255) 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 *

* 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); } /** * 针对根布局是 CoordinatorLayout, 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 setTranslucentForCoordinatorLayout(Activity activity, @IntRange(from = 0, to = 255) 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 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 */ @Deprecated 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, @ColorInt 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, @ColorInt 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, @ColorInt int color, @IntRange(from = 0, to = 255) 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 // 添加 statusBarView 到布局中 ViewGroup contentLayout = (ViewGroup) drawerLayout.getChildAt(0); View fakeStatusBarView = contentLayout.findViewById(FAKE_STATUS_BAR_VIEW_ID); if (fakeStatusBarView != null) { if (fakeStatusBarView.getVisibility() == View.GONE) { fakeStatusBarView.setVisibility(View.VISIBLE); } fakeStatusBarView.setBackgroundColor(color); } else { contentLayout.addView(createStatusBarView(activity, color), 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(contentLayout.getPaddingLeft(), getStatusBarHeight(activity) + contentLayout.getPaddingTop(), contentLayout.getPaddingRight(), contentLayout.getPaddingBottom()); } // 设置属性 setDrawerLayoutProperty(drawerLayout, contentLayout); addTranslucentView(activity, statusBarAlpha); } /** * 设置 DrawerLayout 属性 * * @param drawerLayout DrawerLayout * @param drawerLayoutContentLayout DrawerLayout 的内容布局 */ private static void setDrawerLayoutProperty(DrawerLayout drawerLayout, ViewGroup drawerLayoutContentLayout) { ViewGroup drawer = (ViewGroup) drawerLayout.getChildAt(1); drawerLayout.setFitsSystemWindows(false); drawerLayoutContentLayout.setFitsSystemWindows(false); drawerLayoutContentLayout.setClipToPadding(true); drawer.setFitsSystemWindows(false); } /** * 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 */ @Deprecated public static void setColorForDrawerLayoutDiff(Activity activity, DrawerLayout drawerLayout, @ColorInt 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 ViewGroup contentLayout = (ViewGroup) drawerLayout.getChildAt(0); View fakeStatusBarView = contentLayout.findViewById(FAKE_STATUS_BAR_VIEW_ID); if (fakeStatusBarView != null) { if (fakeStatusBarView.getVisibility() == View.GONE) { fakeStatusBarView.setVisibility(View.VISIBLE); } fakeStatusBarView.setBackgroundColor(calculateStatusColor(color, DEFAULT_STATUS_BAR_ALPHA)); } else { // 添加 statusBarView 到布局中 contentLayout.addView(createStatusBarView(activity, color), 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 setDrawerLayoutProperty(drawerLayout, contentLayout); } } /** * 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, @IntRange(from = 0, to = 255) 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 setDrawerLayoutProperty(drawerLayout, contentLayout); } /** * 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 */ @Deprecated 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); } } /** * 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); } } /** * 为 fragment 头部是 ImageView 的设置状态栏透明 * * @param activity fragment 对应的 activity * @param needOffsetView 需要向下偏移的 View */ public static void setTranslucentForImageViewInFragment(Activity activity, View needOffsetView) { setTranslucentForImageViewInFragment(activity, DEFAULT_STATUS_BAR_ALPHA, needOffsetView); } /** * 为 fragment 头部是 ImageView 的设置状态栏透明 * * @param activity fragment 对应的 activity * @param needOffsetView 需要向下偏移的 View */ public static void setTransparentForImageViewInFragment(Activity activity, View needOffsetView) { setTranslucentForImageViewInFragment(activity, 0, needOffsetView); } /** * 为 fragment 头部是 ImageView 的设置状态栏透明 * * @param activity fragment 对应的 activity * @param statusBarAlpha 状态栏透明度 * @param needOffsetView 需要向下偏移的 View */ public static void setTranslucentForImageViewInFragment(Activity activity, @IntRange(from = 0, to = 255) int statusBarAlpha, View needOffsetView) { setTranslucentForImageView(activity, statusBarAlpha, needOffsetView); if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT && Build.VERSION.SDK_INT < Build.VERSION_CODES.LOLLIPOP) { clearPreviousSetting(activity); } } /** * 隐藏伪状态栏 View * * @param activity 调用的 Activity */ public static void hideFakeStatusBarView(Activity activity) { ViewGroup decorView = (ViewGroup) activity.getWindow().getDecorView(); View fakeStatusBarView = decorView.findViewById(FAKE_STATUS_BAR_VIEW_ID); if (fakeStatusBarView != null) { fakeStatusBarView.setVisibility(View.GONE); } View fakeTranslucentView = decorView.findViewById(FAKE_TRANSLUCENT_VIEW_ID); if (fakeTranslucentView != null) { fakeTranslucentView.setVisibility(View.GONE); } } /////////////////////////////////////////////////////////////////////////////////// @TargetApi(Build.VERSION_CODES.KITKAT) private static void clearPreviousSetting(Activity activity) { ViewGroup decorView = (ViewGroup) activity.getWindow().getDecorView(); View fakeStatusBarView = decorView.findViewById(FAKE_STATUS_BAR_VIEW_ID); if (fakeStatusBarView != null) { decorView.removeView(fakeStatusBarView); ViewGroup rootView = (ViewGroup) ((ViewGroup) activity.findViewById(android.R.id.content)).getChildAt(0); rootView.setPadding(0, 0, 0, 0); } } /** * 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)); } } /** * 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, @ColorInt int color) { return createStatusBarView(activity, color, 0); } /** * 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); LinearLayout.LayoutParams params = new LinearLayout.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, getStatusBarHeight(activity)); statusBarView.setLayoutParams(params); statusBarView.setBackgroundColor(calculateStatusColor(color, alpha)); statusBarView.setId(FAKE_STATUS_BAR_VIEW_ID); 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); } } } /** * 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); } } /** * 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; } /** * 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) { 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; } }

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