一、准备
插件功能：打开IOS相机
1:创建插件
plugman create –name [插件名称] –plugin_id [插件ID] –plugin_version [插件版本号]
plugman create –name CameraDemo –plugin_id cordova-plugin-camerademo –plugin_version 1.0.0
2:添加IOS平台
plugman platform add –platform_name ios
3:创建package.json文件
以下两种都可以生成package.json
1：使用命令 “npm init” 创建package.json文件
2：plugman createpackagejson [插件路径]
原应用使用的ionic UI框架，没有package.json无法安装插件
最终插件目录结构
除了ViewController.h和ViewController.m文件，其余的文件通过上述步骤都会自动生成
二、过程
创建文件ViewController.h和ViewController.m
ViewController.h
#import <UIKit/UIKit.h>
@interface ViewController : UIViewController{
}
@property (nonatomic,strong) UIImagePickerController *imagePicker;
- (void)getDeviceInfo; //获取ios设备信息
- (void)OpenCamera; //打开ios相机
@end
ViewController.m
#import \"ViewController.h\"
@interface ViewController ()
@end
@implementation ViewController
- (id) init{
NSLog(@\"=======================相机初始化\");
self = [super init];
self.imagePicker = [[UIImagePickerController alloc] init];
return self;
}
- (void)viewDidLoad {
[super viewDidLoad];
// Do any additional setup after loading the view.
UIButton *button =[[UIButton alloc]init];
[button setTitle:@\"我是按钮\" forState:(UIControlStateNormal)];
[button setTitleColor:[UIColor redColor] forState:(UIControlStateNormal)];
[button setTitleColor:[UIColor blueColor] forState:(UIControlStateHighlighted)];
[button setBackgroundColor:[UIColor yellowColor]];
[button setFrame:CGRectMake(10, 50, 100, 30)];
//事件
//[button addTarget:self action:@selector(click) forControlEvents:(UIControlEventTouchUpInside)];
[self.view addSubview:button];
UIButton *deviceBtn =[[UIButton alloc]init];
[deviceBtn setTitle:@\"查看设备信息\" forState:(UIControlStateNormal)];
[deviceBtn setTitleColor:[UIColor redColor] forState:(UIControlStateNormal)];
[deviceBtn setTitleColor:[UIColor blueColor] forState:(UIControlStateHighlighted)];
[deviceBtn setBackgroundColor:[UIColor yellowColor]];
[deviceBtn setFrame:CGRectMake(120, 50, 200, 30)];
[deviceBtn addTarget:self action:@selector(getDeviceInfo) forControlEvents:(UIControlEventTouchUpInside)];
[self.view addSubview:deviceBtn];
UIButton *openCameraBtn =[[UIButton alloc]init];
[openCameraBtn setTitle:@\"打开相机\" forState:(UIControlStateNormal)];
[openCameraBtn setTitleColor:[UIColor redColor] forState:(UIControlStateNormal)];
[openCameraBtn setTitleColor:[UIColor blueColor] forState:(UIControlStateHighlighted)];
[openCameraBtn setBackgroundColor:[UIColor yellowColor]];
[openCameraBtn setFrame:CGRectMake(330, 50, 200, 30)];
[openCameraBtn addTarget:self action:@selector(openCamera) forControlEvents:(UIControlEventTouchUpInside)];
[self.view addSubview:openCameraBtn];
}
- (void)getDeviceInfo{
NSLog(@\"获取设备信息。。。。\");
NSString *name = [[UIDevice currentDevice] name];
NSString *systemName = [[UIDevice currentDevice] systemName];
NSString *systemVersion = [[UIDevice currentDevice] systemVersion];
NSString *model = [[UIDevice currentDevice] model];
NSString *localizeModel = [[UIDevice currentDevice] localizedModel];
UILabel *nameL = [[UILabel alloc] init];
UILabel *systemNameL = [[UILabel alloc] init];
UILabel *systemVersionL = [[UILabel alloc] init];
UILabel *modelL = [[UILabel alloc] init];
UILabel *localizeModelL = [[UILabel alloc] init];
[nameL setText:name];
[systemNameL setText:systemName];
[systemVersionL setText:systemVersion];
[modelL setText:model];
[localizeModelL setText:localizeModel];
[nameL setTextColor:[UIColor blueColor]];
[systemNameL setTextColor:[UIColor blueColor]];
[systemVersionL setTextColor:[UIColor blueColor]];
[modelL setTextColor:[UIColor blueColor]];
[localizeModelL setTextColor:[UIColor blueColor]];
CGFloat x = 10;
CGFloat y = 80;
CGFloat width = 200;
CGFloat height=20;
nameL.frame = CGRectMake(x, y+20, width, height);
systemNameL.frame = CGRectMake(x, y+40, width, height);
systemVersionL.frame = CGRectMake(x, y+60, width, height);
modelL.frame = CGRectMake(x, y+80, width, height);
localizeModelL.frame = CGRectMake(x, y+100, width, height);
[self.view addSubview:nameL];
[self.view addSubview:systemNameL];
[self.view addSubview:systemVersionL];
[self.view addSubview:modelL];
[self.view addSubview:localizeModelL];
}
- (void)openCamera{
//NSLog(@\"打开摄像头。。。。\");
//UIImagePickerController *imagePicker = [[UIImagePickerController alloc] init];
self.imagePicker.editing = YES;
self.imagePicker.delegate = self;
self.imagePicker.allowsEditing = YES;
if([UIImagePickerController isSourceTypeAvailable:UIImagePickerControllerSourceTypeCamera]){
NSLog(@\"选择相机。。。\");
self.imagePicker.sourceType = UIImagePickerControllerSourceTypeCamera;
}
[self presentViewController:self.imagePicker animated:YES completion:nil];
}
@end
这两个文件其实是我已经在ios原生项目下编译运行过的文件，然后被CameraDemo.m调用。(其实有点类似于库的作用)
直白一点就是。有一个库(ViewController.h和ViewController.m)，提供了一个类ViewController，这个类提供了两个方法
- (void)getDeviceInfo; //获取ios设备信息
- (void)OpenCamera; //打开ios相机
然后CameraDemo.m去实例化了这个类
CameraDemo.m
/********* CameraDemo.m Cordova Plugin Implementation *******/ #import <Cordova/CDV.h> #import \"ViewController.h\" //这里必须继承CDVPlugin 类，表示CameraDemo是Cordova插件类 @interface CameraDemo : CDVPlugin { // Member variables go here. } @property (nonatomic,strong) ViewController *view; //声明一个ViewController - (void)coolMethod:(CDVInvokedUrlCommand*)command; //创建插件自带的方法，可以删除 - (void)openCamera:(CDVInvokedUrlCommand*)command; @end @implementation CameraDemo - (void)pluginInitialize{ NSLog(@\"===========================初始化CameraDemo\"); [super pluginInitialize]; // 实例化ViewController self.view = [[ViewController alloc] init]; } //创建插件自带的方法，可以删除 - (void)coolMethod:(CDVInvokedUrlCommand*)command { CDVPluginResult* pluginResult = nil; NSString* echo = [command.arguments objectAtIndex:0]; if (echo != nil && [echo length] > 0) { pluginResult = [CDVPluginResult resultWithStatus:CDVCommandStatus_OK messageAsString:echo]; } else { pluginResult = [CDVPluginResult resultWithStatus:CDVCommandStatus_ERROR]; } [self.commandDelegate sendPluginResult:pluginResult callbackId:command.callbackId]; } - (void)openCamera:(CDVInvokedUrlCommand*)command { // 将ViewController的实例viewController 显示出来 [self.viewController presentViewController:self.view animated:YES completion:nil]; //ViewController *view = [[ViewController alloc] init]; //[view openCamera]; //CDVPluginResult* pluginResult = [CDVPluginResult resultWithStatus:CDVCommandStatus_ERROR];; //[self.commandDelegate sendPluginResult:pluginResult callbackId:command.callbackId]; } @end
CameraDemo.js
var exec = require(\'cordova/exec\');
exports.coolMethod = function (arg0, success, error) {
exec(success, error, \'CameraDemo\', \'coolMethod\', [arg0]);
};
exports.openCamera = function (arg0, success, error) {
exec(success, error, \'CameraDemo\', \'openCamera\', [arg0]);
};
plugin.xml (这个文件非常非常的重要，js可以调用oc全靠它，多查查资料)
<?xml version=\'1.0\' encoding=\'utf-8\'?>
<plugin id=\"cordova-plugin-camerademo\" version=\"1.0.0\"
xmlns=\"http://apache.org/cordova/ns/plugins/1.0\"
xmlns:android=\"http://schemas.android.com/apk/res/android\">
<name>CameraDemo</name>
<js-module name=\"CameraDemo\" src=\"www/CameraDemo.js\">
<clobbers target=\"cordova.plugins.CameraDemo\" />
</js-module>
<platform name=\"ios\">
<config-file parent=\"/*\" target=\"config.xml\">
<feature name=\"CameraDemo\">
<param name=\"ios-package\" value=\"CameraDemo\" onload=\"true\"/>
</feature>
</config-file>
<source-file src=\"src/ios/CameraDemo.m\" />
<header-file src=\"src/ios/ViewController.h\" />
<source-file src=\"src/ios/ViewController.m\" />
</platform>
</plugin>
package.json (一般不需要修改)
{
\"name\": \"cordova-plugin-camerademo\",
\"version\": \"1.0.0\",
\"description\": \"\",
\"cordova\": {
\"id\": \"cordova-plugin-camerademo\",
\"platforms\": [
\"ios\"
]
},
\"keywords\": [
\"ecosystem:cordova\",
\"cordova-ios\"
],
\"author\": \"\",
\"license\": \"ISC\"
}
CameraDemo.js 通过 plugin.xml 配置去调用了原生的ocject-c方法
最后
Cordova项目调用插件
重要，如果调用和插件中的plugin.xml配置有关，所以plugin.xml非常重要
// 在项目的 ts文件中调用 declare let cordova:any cordova.plugins.CameraDemo.openCamera();
以上就是如何在IOS中使用Cordova插件的详细内容，更多关于IOS使用Cordova的资料请关注自学编程网其它相关文章！
