Android动态更换应用图标详情

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    package="com.xzh.demo">

    <!-- 权限-->
    <uses-permission android:name="android.permission.KILL_BACKGROUND_PROCESSES"/>

    <application
        android:allowBackup="true"
        android:icon="@mipmap/wb_default_logo"
        android:label="@string/app_name"
        android:roundIcon="@mipmap/wb_default_logo"
        android:supportsRtl="true"
        android:theme="@style/Theme.AndroidDemo">

       ...//省略其他代码

        <!-- 默认微博-->
        <activity-alias
            android:name="com.xzh.demo.default"
            android:targetActivity=".MainActivity"
            android:label="@string/app_name"
            android:enabled="false"
            android:icon="@mipmap/wb_default_logo"
            android:exported="true">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />
                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity-alias>

        <!-- 3D微博-->
        <activity-alias
            android:name=".threedweibo"
            android:targetActivity=".MainActivity"
            android:label="@string/wb_3d"
            android:enabled="false"
            android:icon="@mipmap/wb_3dweibo"
            android:exported="true">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />
                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity-alias>

        ... //省略其他

    </application>
</manifest>

class MainActivity : AppCompatActivity() {
    var list: List<LogoBean> = ArrayList()
    var recyclerView: RecyclerView? = null
    var adapter: LogoAdapter? = null
    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_main)
        initView()
        initData()
        initRecycle()
    }
    private fun initView() {
        recyclerView = findViewById(R.id.recycle_view)
    }
    private fun initData() {
        list = Arrays.asList(
            LogoBean(R.mipmap.wb_default_logo, "默认图标", true),
            LogoBean(R.mipmap.wb_3dweibo, "3D微博", false),
            LogoBean(R.mipmap.wb_cheese_sweetheart, "奶酪甜心", false),
            LogoBean(R.mipmap.wb_chocolate_sweetheart, "巧克力", false),
            LogoBean(R.mipmap.wb_clear_colorful, "清透七彩", false),
            LogoBean(R.mipmap.wb_colorful_sunset, "多彩日落", false),
            LogoBean(R.mipmap.wb_colorful_weibo, "炫彩微博", false),
            LogoBean(R.mipmap.wb_cool_pool, "清凉泳池", false),
            LogoBean(R.mipmap.wb_fantasy_purple, "梦幻紫", false),
            LogoBean(R.mipmap.wb_fantasy_starry_sky, "幻想星空", false),
            LogoBean(R.mipmap.wb_hot_weibo, "热感微博", false),
        )
    }
    private fun initRecycle() {
        adapter =LogoAdapter(this,list);
        val layoutManager = GridLayoutManager(this, 3)
        recyclerView?.layoutManager = layoutManager
        recyclerView?.adapter = adapter
        adapter?.setOnItemClickListener(object : OnItemClickListener {
            override fun onItemClick(view: View?, position: Int) {
                 if(position==1){
                     changeLogo("com.xzh.demo.threedweibo")
                 }else if (position==2){
                     changeLogo("com.xzh.demo.cheese")
                 }else if (position==3){
                     changeLogo("com.xzh.demo.chocolate")
                 }else {
                     changeLogo("com.xzh.demo.default")
                 }
            }
        })
    }

    fun changeLogo(name: String) {
        val pm = packageManager
        pm.setComponentEnabledSetting(
            componentName,
            PackageManager.COMPONENT_ENABLED_STATE_DISABLED, PackageManager.DONT_KILL_APP
        )
        pm.setComponentEnabledSetting(
            ComponentName(this, name),
            PackageManager.COMPONENT_ENABLED_STATE_ENABLED, PackageManager.DONT_KILL_APP
        )
        reStartApp(pm)
    }
    fun reStartApp(pm: PackageManager) {
        val am = getSystemService(ACTIVITY_SERVICE) as ActivityManager
        val intent = Intent(Intent.ACTION_MAIN)
        intent.addCategory(Intent.CATEGORY_HOME)
        intent.addCategory(Intent.CATEGORY_DEFAULT)
        val resolveInfos = pm.queryIntentActivities(intent, 0)
        for (resolveInfo in resolveInfos) {
            if (resolveInfo.activityInfo != null) {
                am.killBackgroundProcesses(resolveInfo.activityInfo.packageName)
            }
        }
    }
}