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1. Added image picker for selecting image from gallery or from camera with crop and compress support.
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‎.idea/caches/build_file_checksums.ser

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‎.idea/caches/gradle_models.ser

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‎.idea/gradle.xml

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‎app/build.gradle

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apply plugin: 'com.android.library'
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apply plugin: 'kotlin-android'
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apply plugin: 'kotlin-android-extensions'
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apply plugin: 'com.github.dcendents.android-maven'
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group = 'com.github.amitjangid80'
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mavenCentral()
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}
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ext {
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supportLibraryVersion = '28.0.0'
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}
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dependencies {
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implementation fileTree(include: ['*.jar'], dir: 'libs')
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// RxJava dependencies
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implementation 'io.reactivex.rxjava2:rxandroid:2.1.0'
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// kotlin dependencies
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implementation"org.jetbrains.kotlin:kotlin-stdlib-jdk8:$kotlinVersion"
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// More Info: https://github.com/Yalantis/uCrop
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implementation 'com.github.yalantis:ucrop:2.2.2'
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}

‎app/src/main/AndroidManifest.xml

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<manifest xmlns:android="http://schemas.android.com/apk/res/android"
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package="com.amit">
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<uses-permission android:name="android.permission.CAMERA" />
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<uses-permission android:name="android.permission.INTERNET" />
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<uses-permission android:name="android.permission.READ_PHONE_STATE" />
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<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
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<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
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<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
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<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
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<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
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<application>
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<activity android:name="com.amit.img_picker.ImagePickerActivity" />
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<activity
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android:name="com.yalantis.ucrop.UCropActivity"
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android:screenOrientation="portrait"
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android:theme="@style/Theme.AppCompat.Light.NoActionBar" />
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<provider
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android:name="android.support.v4.content.FileProvider"
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android:authorities="${applicationId}.provider"
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android:exported="false"
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android:grantUriPermissions="true">
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<meta-data
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android:name="android.support.FILE_PROVIDER_PATHS"
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android:resource="@xml/image_picker_provider_paths" />
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</provider>
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</application>
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</manifest>

‎app/src/main/java/com/amit/img_picker/ImagePicker.kt

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package com.amit.img_picker
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import android.app.Activity
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import android.content.Intent
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import android.os.Bundle
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import android.support.v4.app.Fragment
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import com.amit.img_picker.constant.ImageProvider
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import com.amit.img_picker.listener.ResultListener
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import com.amit.img_picker.util.DialogHelper
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import java.io.File
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/**
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* Created by AMIT JANGID on 18/02/2019.
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**/
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class ImagePicker
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{
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companion object
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{
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// default Request Code to Pick Image
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const val RESULT_ERROR = 64
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const val REQUEST_CODE = 2404
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internal const val EXTRA_ERROR = "extra.error"
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internal const val EXTRA_CROP_X = "extra.crop_x"
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internal const val EXTRA_CROP_Y = "extra.crop_y"
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internal const val EXTRA_FILE_PATH = "extra.file_path"
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internal const val EXTRA_MAX_WIDTH = "extra.max_width"
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internal const val EXTRA_MAX_HEIGHT = "extra.max_height"
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internal const val EXTRA_IMAGE_PROVIDER = "extra.image_provider"
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internal const val EXTRA_IMAGE_MAX_SIZE = "extra.image_max_size"
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/**
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* Use this to use ImagePicker in Activity Class
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*
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* @param activity Activity Instance
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**/
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fun with(activity: Activity): Builder
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{
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return Builder(activity)
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}
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/**
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* Use this to use ImagePicker in Fragment Class
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*
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* @param fragment Fragment Instance
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**/
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fun with(fragment: Fragment): Builder
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{
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return Builder(fragment)
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}
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/**
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* Get error message from intent
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**/
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fun getError(data: Intent?): String
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{
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val error = data?.getStringExtra(EXTRA_ERROR)
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if (error != null)
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{
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return error
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}
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else
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{
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return "Unknown Error!"
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}
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}
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/**
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* Get File Path from intent
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**/
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fun getFilePath(data: Intent?): String?
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{
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return data?.getStringExtra(EXTRA_FILE_PATH)
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}
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/**
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* Get File from intent
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**/
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fun getFile(data: Intent?): File?
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{
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val path = getFilePath(data)
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if (path != null)
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{
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return File(path)
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}
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return null
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}
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}
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class Builder(private val activity: Activity)
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{
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private var fragment: Fragment? = null
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// image Provider
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private var imageProvider = ImageProvider.BOTH
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/*
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* crop Parameters
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*/
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private var cropX: Float = 0f
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private var cropY: Float = 0f
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/*
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* Resize Parameters
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*/
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private var maxWidth: Int = 0
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private var maxHeight: Int = 0
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/*
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* Max File Size
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*/
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private var maxSize: Long = 0
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/**
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* Call this while picking image for fragment.
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**/
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constructor(fragment: Fragment) : this(fragment.activity!!)
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{
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this.fragment = fragment
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}
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/**
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* Only Capture image using Camera
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**/
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fun cameraOnly(): Builder
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{
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imageProvider = ImageProvider.CAMERA
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return this
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}
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/**
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* Only Pick image from gallery
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**/
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fun galleryOnly(): Builder
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{
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imageProvider = ImageProvider.GALLERY
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return this
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}
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/**
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* Set an aspect ratio for crop bounds.
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* User won't see the menu with other ratios options.
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*
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* @param x aspect ratio X
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* @param y aspect ratio Y
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**/
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fun crop(x: Float, y: Float): Builder
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{
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cropX = x
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cropY = y
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return this
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}
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/**
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* Crop Square Image, Useful for Profile Image.
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*
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**/
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fun cropSquare(): Builder
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{
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return crop(1f, 1f)
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}
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/**
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* Max Width and Height of final image
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**/
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fun maxResultSize(width: Int, height: Int): Builder
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{
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this.maxWidth = width
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this.maxHeight = height
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return this
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}
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/**
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* Compress Image so that max image size can be below specified size
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*
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* @param maxSize Size in KB
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**/
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fun compress(maxSize: Int): Builder
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{
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this.maxSize = maxSize * 1024L
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return this
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}
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/**
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* Start Image Picker Activity
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**/
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fun start()
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{
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start(REQUEST_CODE)
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}
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/**
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* Start Image Picker Activity
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**/
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fun start(reqCode: Int)
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{
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if (imageProvider == ImageProvider.BOTH)
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{
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// Pick Image Provider if not specified
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showImageProviderDialog(reqCode)
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}
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else
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{
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startActivity(reqCode)
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}
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}
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/**
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* Pick Image Provider if not specified
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**/
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private fun showImageProviderDialog(reqCode: Int)
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{
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DialogHelper.showChooseAppDialog(activity, object: ResultListener<ImageProvider>
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{
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override fun onResult(t: ImageProvider)
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{
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imageProvider = t
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startActivity(reqCode)
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}
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})
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}
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/**
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* Start ImagePickerActivity with given Argument
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**/
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private fun startActivity(reqCode: Int)
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{
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val bundle = Bundle()
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bundle.putSerializable(EXTRA_IMAGE_PROVIDER, imageProvider)
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// bundle.putBoolean(EXTRA_ASK_PERMISSION, askPermission)
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bundle.putFloat(EXTRA_CROP_X, cropX)
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bundle.putFloat(EXTRA_CROP_Y, cropY)
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bundle.putInt(EXTRA_MAX_WIDTH, maxWidth)
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bundle.putInt(EXTRA_MAX_HEIGHT, maxHeight)
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bundle.putLong(EXTRA_IMAGE_MAX_SIZE, maxSize)
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val intent = Intent(activity, ImagePickerActivity::class.java)
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intent.putExtras(bundle)
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if (fragment != null)
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{
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fragment?.startActivityForResult(intent, reqCode)
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}
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else
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{
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activity.startActivityForResult(intent, reqCode)
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}
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}
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}
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}

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