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权限

<uses-permission android:name=”android.permission.QUERY_ALL_PACKAGES” />

获取安装的应用、icon图

var queryIntentActivities = mutableListOf<ResolveInfo>()

val intent = Intent(Intent.ACTION_MAIN).addCategory(Intent.CATEGORY_LAUNCHER)

if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.M) {

queryIntentActivities =

packageManager.queryIntentActivities(intent, PackageManager.MATCH_ALL)

} else {

queryIntentActivities = packageManager.queryIntentActivities(intent, 0)

}

queryIntentActivities.forEach {

val bitmap = it.loadIcon(packageManager).toBitmap()

val size = bitmap.width * bitmap.height

val baos = ByteArrayOutputStream(size)

// 设置位图的压缩格式，质量为100%，并放入字节数组输出流中

// 设置位图的压缩格式，质量为100%，并放入字节数组输出流中

bitmap.compress(Bitmap.CompressFormat.PNG, 100, baos)

val imagedata = baos.toByteArray()

val icon: String = Base64.encodeToString(imagedata, Base64.DEFAULT)

val appName = it.loadLabel(packageManager).toString()

val appPackageName = it.activityInfo.applicationInfo.packageName

// com.tal.znxx.log.KLog.d(TAG,icon);

com.tal.znxx.log.KLog.d(TAG,appName);

com.tal.znxx.log.KLog.d(TAG,appPackageName);

}

根据报名跳转：

Handler(this.mainLooper).postDelayed({

try {

val packageName = “com.android.calculator”;

val intent = packageManager.getLaunchIntentForPackage(packageName)

startActivity(intent);

}catch (e:Exception){

ToastUtils.showCenter(“功能开发中，敬请期待”)

}

}, 2000)