Krishan14sharma

public class ParallaxPageTransformer implements ViewPager.PageTransformer {
	
		public void transformPage(View view, float position) {
		
			int pageWidth = view.getWidth();
			

			 if (position < -1) { // [-Infinity,-1)
		            // This page is way off-screen to the left.
		            view.setAlpha(1);

Krishan14sharma

public void transformPage(View view, float position) {
    int pageWidth = view.getWidth();
        
    if (position < -1) { // [-Infinity,-1)
        // This page is way off-screen to the left.
        view.setAlpha(0);

    } else if (position <= 1) { // [-1,1]
          
		  

Krishan14sharma

package com.github.manuelpeinado.toolbartest;

import android.graphics.Color;
import android.graphics.drawable.Drawable;
import android.os.Bundle;
import android.support.v7.app.ActionBarActivity;
import android.support.v7.widget.Toolbar;
import android.view.Menu;
import android.view.View;

Krishan14sharma

Results of some experiments to determine which Activity lifecycle methods get called in certain situations.

Scenario: Launch app from home, then return home

Launch:

• activity.onCreate()
• activity.onStart()
• activity.onResume()
• activity.onWindowFocusChanged(true)

Krishan14sharma

#!/usr/bin/env bash

# I've found that the "Migrate to AndroidX" converter in Android Studio doesn't work very
# well, so I wrote my own script to do the simple job of converting package names.
#
# You can download a CSV of package names here: https://developer.android.com/topic/libraries/support-library/downloads/androidx-class-mapping.csv
#
# It'll run faster on a clean build because then there are fewer files to scan over.
#
# Uses `gsed` because I'm on a Mac. Can easily replace with `sed` if you don't have `gsed`.