john-lorrenz’s gists

john-lorrenz / CreateDialog.kt

Last active November 19, 2019 16:50

Create dialogs


	fun createBasicAlertDialog(){
	val builder = AlertDialog.Builder(this)
	builder.setTitle("[DIALOG TITLE]")
	builder.setMessage("[DIALOG MESSAGE]")
	builder.setPositiveButton("[YES TEXT]") { dialog, which ->

	// Action on click yes
	}
	builder.setCancelable(false)

john-lorrenz / BitmapManipulation.kt

Last active November 13, 2019 09:51

Bitmap Manipulation

	/*
	Sample Parameter:
	String: "file:///storage/emulated/0/Android/data/com.example.disappeardents/cache/roof_1.jpg"
	*/
	fun uriStringToBitmap(uriString : String) : Bitmap {

	val uri = uriString.toUri()
	val uriPath = uri.path
	val bitmap = BitmapFactory.decodeFile(uriPath)

john-lorrenz / AndroidManifest.xml

Last active November 6, 2019 10:13

Built-in Action Bar Manipulation

	<!-- CHANGE TITLE -->
	<activity android:name=".ActivityName"
	android:label="[LABEL HERE]"/>


	<!-- HIDE ACTION BAR -->
	<activity android:name=".ActivityName"
	android:theme="@style/AppTheme.NoActionBar"/>

john-lorrenz / BadgeCount.kt

Last active November 7, 2019 05:56

Icon Badge Count

	// Create action bar item (notification icon)
	override fun onCreateOptionsMenu(menu: Menu): Boolean {

	// Inflate the menu; this adds items to the action bar if it is present.
	menuInflater.inflate(R.menu.action_bar_notifications, menu)

	// Get the menu item
	var menuItem = menu.findItem(R.id.notifications)

	// Get the view of the menu item

john-lorrenz / CustomCamera.kt

Last active December 22, 2019 21:34

Camera capture full quality

	// uri exposure fix
	var builder = StrictMode.VmPolicy.Builder()
	StrictMode.setVmPolicy(builder.build())

	// Class level variable
	var photoURI: Uri? = null

	// STEP 1: Call this where you need to do the capturing
	fun openCamera(fileName: String, requestCode: Int){
	val intent = Intent(MediaStore.ACTION_IMAGE_CAPTURE);

john-lorrenz / nested_layout.xml

Created October 13, 2019 12:55

Recycler view - whole page scrollable

	<?xml version="1.0" encoding="utf-8"?>
	<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
	xmlns:app="http://schemas.android.com/apk/res-auto"
	xmlns:tools="http://schemas.android.com/tools"
	android:layout_width="match_parent"
	android:layout_height="match_parent"
	tools:context=".Schedule.ScheduleActivity">

	<androidx.core.widget.NestedScrollView
	android:layout_width="match_parent"

john-lorrenz / RecyclerViewColumns.kt

Last active November 7, 2019 05:54

set recycler view column to more than 1

recycler_view.layoutManager = GridLayoutManager(this,2)

john-lorrenz / CustomActionBar.kt

Last active November 7, 2019 05:53

Custom Action bar manipulation (e.g. making the title centered, displaying the up button)

	override fun onCreate(savedInstanceState: Bundle?) {
	super.onCreate(savedInstanceState)

	// Tell Android to use the Toolbar as the ActionBar
	setSupportActionBar(toolbar)

	// Remove default title, so we can use our custom title
	supportActionBar!!.setDisplayShowTitleEnabled(false)

	// Show the up/back button

john-lorrenz / rounded_image_view.xml

Last active November 17, 2019 16:16

imageview - rounder corner

	<androidx.cardview.widget.CardView
	android:layout_width="match_parent"
	android:layout_height="match_parent"
	app:cardCornerRadius="20dp"
	android:layout_gravity="center"
	app:cardElevation="50dp">

	<ImageView
	android:id="@+id/imageView"
	android:layout_width="match_parent"

john-lorrenz / basic_layout_template.xml

Last active November 7, 2019 05:53

Complete layout template (Action bar - FrameLayout - Bottom Navigation)

	<?xml version="1.0" encoding="utf-8"?>
	<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
	xmlns:app="http://schemas.android.com/apk/res-auto"
	xmlns:tools="http://schemas.android.com/tools"
	android:layout_width="match_parent"
	android:layout_height="match_parent"
	tools:context=".Dashboard.DashboardActivity"
	android:orientation="vertical">

	<androidx.appcompat.widget.Toolbar

John lorrenz Cruz john-lorrenz