（五）在android 4.4上设置手机状态栏的背景

一、demo效果图

在android 4.4上 有一个新的特性可以设置手机状态栏的背景，让手机整个界面的风格保持一致，在今年的google i/o上的android l默认就是这种风格。来先看一下demo效果图：

                                    

            图一：透明状态栏                                                                                                               图2：蓝色背景状态栏

二、整个DEMO的工程结构图如下所示：

三、主要的实现代码如下所示：

首先，要记得导入systembartint-1.0.4.jar包

 3.1 MainActivity.java中的代码如下所示：

package com.example.testdemo;

import android.annotation.TargetApi;
import android.app.Activity;
import android.os.Build;
import android.os.Bundle;
import android.view.Window;
import android.view.WindowManager;

import com.readystatesoftware.systembartint.SystemBarTintManager;

public class MainActivity extends Activity {
    private boolean isBarTint = true;
    private boolean isTranslucentBarTint = false;

    public void setBarTint(boolean isBarTint) {
        this.isBarTint = isBarTint;
    }

    public void setTranslucentBarTint(boolean isTranslucentBarTint) {
        this.isTranslucentBarTint = isTranslucentBarTint;
    }

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        if (isBarTint) {
            initSystemBar();
        } else if (isTranslucentBarTint) {
            initTranslucentSystemBar();
        }
    }
    @TargetApi(Build.VERSION_CODES.KITKAT)
    private void initSystemBar() {
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
            setTranslucentStatus(true);
            SystemBarTintManager tintManager = new SystemBarTintManager(this);
            // 激活状态栏设置
            tintManager.setStatusBarTintEnabled(true);
            // 激活导航栏设置
            tintManager.setNavigationBarTintEnabled(false);

            int sbg = getResources().getColor(R.color.titlebar_rl_background);
            tintManager.setTintColor(sbg);
            tintManager.setStatusBarTintColor(sbg);

        }
    }

    @TargetApi(Build.VERSION_CODES.KITKAT)
    private void initTranslucentSystemBar() {
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
            setTranslucentStatus(true);
            SystemBarTintManager tintManager = new SystemBarTintManager(this);
            // 激活状态栏设置
            tintManager.setStatusBarTintEnabled(true);
            // 激活导航栏设置
            tintManager.setNavigationBarTintEnabled(false);

            int sbg = getResources().getColor(R.color.viewfinder_title);
            tintManager.setTintColor(sbg);
            tintManager.setStatusBarTintColor(sbg);
        }
    }

    

    @TargetApi(Build.VERSION_CODES.KITKAT)
    private void setTranslucentStatus(boolean isOpen) {
        Window win = getWindow();
        WindowManager.LayoutParams winParams = win.getAttributes();
        final int bits = WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS;
        if (isOpen) {
            winParams.flags |= bits;
        } else {
            winParams.flags &= ~bits;
        }
        win.setAttributes(winParams);
    }

    @TargetApi(Build.VERSION_CODES.KITKAT)
    private void setTranslucentNavigation(boolean isOpen) {
        Window win = getWindow();
        WindowManager.LayoutParams winParams = win.getAttributes();
        final int bits = WindowManager.LayoutParams.FLAG_TRANSLUCENT_NAVIGATION;
        if (isOpen) {
            winParams.flags |= bits;
        } else {
            winParams.flags &= ~bits;
        }
        win.setAttributes(winParams);
    }
}

 3.2 colors.xml的颜色值如下所示：

<?xml version="1.0" encoding="utf-8"?>
<resources>
    <color name="titlebar_rl_background">#33b5e6</color>
    <color name="viewfinder_title">#80000000</color>
</resources>

 3.3 styles.xml中的代码如下所示： 

<resources>
    <style name="AppTheme" parent="AppBaseTheme">
        <item name="android:windowNoTitle">true</item>
        <item name="android:fitsSystemWindows">true</item>
    </style>
</resources>

 3.4 AndroidManifest.xml  中application或对应的activity设置主题 android:theme="@style/AppTheme"