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@RequiresApi(26)
    fun requestUssdUsingTelephonyManager(ussd: String, simSlot: Int) {
        val ussd =  ussd.replace("%23", Uri.decode("#"))
        Log.e("ussd", "requesting for ussd $ussd")
        val manager = getSystemService(Context.TELEPHONY_SERVICE) as TelephonyManager
        val handler = Handler()
        val callback = object : TelephonyManager.UssdResponseCallback() {
            override fun onReceiveUssdResponse(telephonyManager: TelephonyManager, request: String, response: CharSequence) {
                super.onReceiveUssdResponse(telephonyManager, request, response) // what if i remove this line
                EventBus.getDefault().post(IntentResult(Activity.RESULT_OK, response.toString()))

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package com.rideon.user.activities;

import android.content.Context;
import android.os.Bundle;
import android.support.v7.widget.LinearLayoutManager;
import android.support.v7.widget.RecyclerView;
import android.util.Log;
import android.view.View;
import android.widget.ImageView;
import android.widget.TextView;

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time passed for result1: 1.2310867309570312ms
time passed for result2: 0.014905214309692383ms

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import numpy as np
import time
a = (np.random.rand(1,1000000)) #create a random (1,10) array
result1 = np.zeros((1,1000000),dtype=np.int) #create an array of zeros to hold the result
#print ("a: \n" + str(a))
tic = time.time()
for i in range(1000000):
    if a[0,i]>0.5:
        result1[0,i] = 1
    else:

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result: 
[[1 8]
 [3 4]]

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import numpy as np
array =  [[True, False], [True, True]] # (2,2) array of boolean values
array_cond_true = [[1, 2], [3, 4]]  # (2,2) array of where to pick values if array at position is true
array_cond_false = [[9, 8], [7, 6]] # (2,2) array of where to pick values if array at position is false
print ("result: \n" + str(np.where(array,
         array_cond_true,
         array_cond_false)))

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a: 
[[ 0.76456104  0.75182292  0.11825977  0.97635566  0.3220488   0.44064402
   0.08142387  0.65055208  0.88407891  0.40323535]]
result: 
[[1 1 0 1 0 0 0 1 1 0]]

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import numpy as np
a = (np.random.rand(1,10)) #create a random (1,10) array
print ("a: \n" + str(a))
result = (np.where(a>0.5,1,0)) 
print ("result: \n" +str(result))

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import numpy as np
a = (np.random.rand(1,10)) #create a random (1,10) array
result = np.zeros(10) #create an array of zeros to hold the result
result = (b.reshape(1,10))# reshape b to make sure its a (1,10) array and not (10,)
print ("a: \n" + str(a))
for i in range(10):
    if a[0,i]>0.5:
        result[0,i] = 1
    else:
        result[0,i] = 0

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Official

• Movie
  • Architecture Components: Improve Your App's Design 5:41
  • Google I/O
    • Developer Keynote
    • Introduction
    • Solving the Lifecycle Problem
    • Persistence and Offline
• Document