weex-image-picker

weex-image-picker

weex-image-picker是一个weex插件，可以通过weexpack快速集成，可以丰富weex功能

支持的weexpack版本： >= 0.2.0 支持的WeexSDK版本： >= 0.10.0

功能

快速使用

• 通过weexpack初始化一个测试工程 weextest

  weexpack create weextest
  

• 添加ios平台

  weexpack platform add ios
  

• 添加android平台

  weexpack platform add android
  

• 添加插件

  weexpack plugin add weex-image-picker
  

项目地址

github

已有工程集成

iOS集成插件WeexImagePicker

• 命令行集成

  weexpack plugin add weex-image-picker
  

• 手动集成 在podfile 中添加

  pod 'WeexImagePicker'
  

安卓集成插件weeximagepicker

• 命令行集成

  weexpack plugin add weex-image-picker
  

• 手动集成  在相应工程的build.gradle文件的dependencies中添加

  compile 'com.weexext:imagepicker:1.0.1'
  

 注意：您需要自行指定插件的groupId和version并将构建产物发布到相应的依赖管理仓库内去（例如maven）, 您也可以对插件的name进行自定义，默认将使用插件工程的名称作为name

---

#详解:

Weex Image Picker []

A Weex module that allows you to use native UI to select a photo/video from the device library or directly from the camera, like so:

iOS	Android

Before you open an issue

This library started as a basic bridge of the native iOS image picker, and I want to keep it that way. As such, functionality beyond what the native UIImagePickerController supports will not be supported here. Multiple image selection, more control over the crop tool, and landscape support are things missing from the native iOS functionality - not issues with my library. If you need these things, weex-image-crop-picker might be a better choice for you.

Table of contents

• Install
• Usage
• Direct launch
• Options
• Response object

Install

NOTE: THIS PACKAGE IS NOW BUILT FOR REACT NATIVE 0.40 OR GREATER! IF YOU NEED TO SUPPORT REACT NATIVE < 0.40, YOU SHOULD INSTALL THIS PACKAGE @0.24

npm install weex-image-picker@latest --save

Automatic Installation

weex link

IMPORTANT NOTE: You'll still need to perform step 4 for iOS and steps 2, 3, and 5 for Android of the manual instructions below.

Manual Installation

iOS

1. In the XCode's "Project navigator", right click on your project's Libraries folder ➜ Add Files to <...>
2. Go to node_modules ➜ weex-image-picker ➜ ios ➜ select RNImagePicker.xcodeproj
3. Add RNImagePicker.a to Build Phases -> Link Binary With Libraries
4. For iOS 10+, Add the NSPhotoLibraryUsageDescription, NSCameraUsageDescription, and NSMicrophoneUsageDescription (if allowing video) keys to your Info.plist with strings describing why your app needs these permissions. Note: You will get a SIGABRT crash if you don't complete this step
5. Compile and have fun

Android

1. Add the following lines to android/settings.gradle:

   include ':weex-image-picker'
   project(':weex-image-picker').projectDir = new File(rootProject.projectDir, '../node_modules/weex-image-picker/android')
   

2. Update the android build tools version to 2.2.+ in android/build.gradle:

   buildscript {
       ...
       dependencies {
           classpath 'com.android.tools.build:gradle:2.2.+' // <- USE 2.2.+ version
       }
       ...
   }
   ...
   

3. Update the gradle version to 2.14.1 in android/gradle/wrapper/gradle-wrapper.properties:

   ...
   distributionUrl=https\://services.gradle.org/distributions/gradle-2.14.1-all.zip
   

4. Add the compile line to the dependencies in android/app/build.gradle:

   dependencies {
       compile project('org.weex.plugin:weex-image-picker')
   }
   

5. Add the required permissions in AndroidManifest.xml:

   <uses-permission android:name="android.permission.CAMERA" />
   <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
   

6. Add the import and link the package in WXApplication.java:

   import com.imagepicker.ImagePickerPackage; // <-- add this import
   
   public class WXApplication extends Application  {
       WXSDKEngine.registerModule("imagePicker", ImagePickerModule.class);
   }
   

Android (Optional)

Customization settings of dialog android/app/res/values/themes.xml:

<?xml version="1.0" encoding="utf-8"?>
<resources>
    <style name="DefaultExplainingPermissionsTheme" parent="Theme.AppCompat.Light.Dialog.Alert">
        <!-- Used for the buttons -->
        <item name="colorAccent">@color/your_color</item>

        <!-- Used for the title and text -->
        <item name="android:textColorPrimary">@color/your_color</item>

        <!-- Used for the background -->
        <item name="android:background">@color/your_color</item>
    </style>
<resources>

you need to extend AbstractWeexActivity:

                public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
                  super.onRequestPermissionsResult(requestCode, permissions, grantResults);
                  mInstance.onRequestPermissionsResult(requestCode, permissions, grantResults);
                }
  // To here
}

This code allows to pass result of request permissions to native part.

Usage

var ImagePicker =weex.requireModule('imagePicker');


// More info on all the options is below in the README...just some common use cases shown here
var options = {
  title: 'Select Avatar',
  customButtons: [
    {name: 'fb', title: 'Choose Photo from Facebook'},
  ],
  storageOptions: {
    skipBackup: true,
    path: 'images'
  }
};

/**
 * The first arg is the options object for customization (it can also be null or omitted for default options),
 * The second arg is the callback which sends object: response (more info below in README)
 */
ImagePicker.showImagePicker(options, (response) => {
  console.log('Response = ', response);

  if (response.didCancel) {
    console.log('User cancelled image picker');
  }
  else if (response.error) {
    console.log('ImagePicker Error: ', response.error);
  }
  else if (response.customButton) {
    console.log('User tapped custom button: ', response.customButton);
  }
  else {
    let source = { uri: response.uri };

    // You can also display the image using data:
    // let source = { uri: 'data:image/jpeg;base64,' + response.data };
  }
});

Then later, if you want to display this image in your render() method:

 <image style="height: 300px ;width: 300px;" :src="imageUrl"></image>

Directly Launching the Camera or Image Library

To Launch the Camera or Image Library directly (skipping the alert dialog) you can do the following:

// Launch Camera:
ImagePicker.launchCamera(options, (response)  => {
  // Same code as in above section!
});

// Open Image Library:
ImagePicker.launchImageLibrary(options, (response)  => {
  // Same code as in above section!
});

Note

On iOS, don't assume that the absolute uri returned will persist. See #107

Options

option	iOS	Android	Info
title	OK	OK	Specify null or empty string to remove the title
cancelButtonTitle	OK	OK	Specify null or empty string to remove this button (Android only)
takePhotoButtonTitle	OK	OK	Specify null or empty string to remove this button
chooseFromLibraryButtonTitle	OK	OK	Specify null or empty string to remove this button
customButtons	OK	OK	An array containing objects with the name and title of buttons
cameraType	OK	-	'front' or 'back'
mediaType	OK	OK	'photo', 'video', or 'mixed' on iOS, 'photo' or 'video' on Android
maxWidth	OK	OK	Photos only
maxHeight	OK	OK	Photos only
quality	OK	OK	0 to 1, photos only
videoQuality	OK	OK	'low', 'medium', or 'high' on iOS, 'low' or 'high' on Android
durationLimit	OK	OK	Max video recording time, in seconds
rotation	-	OK	Photos only, 0 to 360 degrees of rotation
allowsEditing	OK	-	bool - enables built in iOS functionality to resize the image after selection
noData	OK	OK	If true, disables the base64 data field from being generated (greatly improves performance on large photos)
storageOptions	OK	OK	If this key is provided, the image will be saved in your app's Documents directory on iOS, or your app's Pictures directory on Android (rather than a temporary directory)
storageOptions.skipBackup	OK	-	If true, the photo will NOT be backed up to iCloud
storageOptions.path	OK	-	If set, will save the image at Documents/[path]/ rather than the root Documents
storageOptions.cameraRoll	OK	OK	If true, the cropped photo will be saved to the iOS Camera Roll or Android DCIM folder.
storageOptions.waitUntilSaved	OK	-	If true, will delay the response callback until after the photo/video was saved to the Camera Roll. If the photo or video was just taken, then the file name and timestamp fields are only provided in the response object when this is true.
permissionDenied.title	-	OK	Title of explaining permissions dialog. By default Permission denied.
permissionDenied.text	-	OK	Message of explaining permissions dialog. By default To be able to take pictures with your camera and choose images from your library..
permissionDenied.reTryTitle	-	OK	Title of re-try button. By default re-try
permissionDenied.okTitle	-	OK	Title of ok button. By default I'm sure

The Response Object

key	iOS	Android	Description
didCancel	OK	OK	Informs you if the user cancelled the process
error	OK	OK	Contains an error message, if there is one
customButton	OK	OK	If the user tapped one of your custom buttons, contains the name of it
data	OK	OK	The base64 encoded image data (photos only)
uri	OK	OK	The uri to the local file asset on the device (photo or video)
origURL	OK	-	The URL of the original asset in photo library, if it exists
isVertical	OK	OK	Will be true if the image is vertically oriented
width	OK	OK	Image dimensions
height	OK	OK	Image dimensions
fileSize	OK	OK	The file size (photos only)
type	-	OK	The file type (photos only)
fileName	OK (photos and videos)	OK (photos)	The file name
path	-	OK	The file path
latitude	OK	OK	Latitude metadata, if available
longitude	OK	OK	Longitude metadata, if available
timestamp	OK	OK	Timestamp metadata, if available, in ISO8601 UTC format
originalRotation	-	OK	Rotation degrees (photos only) See #109