uniapp动态权限修改之摄像头和存储权限

た入场券 2022-08-29 05:58 1195阅读 0赞

插件：[permission.js][]  
uniapp官网授权地址：[https://ext.dcloud.net.cn/plugin?id=594\#detail][https_ext.dcloud.net.cn_plugin_id_594_detail]

import permision from '../../lib/permission.js';
    
    modify_content: '' //权限内容
    
    //选择相机或者相册更换头像
    		sculpture(e) { 
    			this.$refs.popup_head.close();
    			if (e == 1) { 
    				this.modify_content = '摄像头权限(拍摄头像)';
    				//相机
    				switch (uni.getSystemInfoSync().platform) { 
    					case 'android':
    						this.requestAndroidPermission('android.permission.CAMERA',e);
    						break;
    					case 'ios':
    						this.judgeIosPermissionCamera();
    						break;
    				}
    			} else { 
    				this.modify_content = '存储权限(读取相册头像)';
    				//相册
    				switch (uni.getSystemInfoSync().platform) { 
    					case 'android':
    						this.requestAndroidPermission('android.permission.READ_EXTERNAL_STORAGE',e);
    						break;
    					case 'ios':
    						this.judgeIosPermissionPhotoLibrary();
    						break;
    				}
    			}
    		},
    		// 授权提示
    		modify() { 
    			uni.showModal({ 
    				title: '####需要下列权限才可以正常使用',
    				content: this.modify_content,
    				confirmText: '前往开启',
    				success: function(res) { 
    					if (res.confirm) { 
    						permision.gotoAppPermissionSetting(); //动态修改权限
    					}
    				}
    			});
    		},
    		// 安卓相机/相册
    		async requestAndroidPermission(permissionID,e) { 
    			let resp = await permision.requestAndroidPermission(permissionID,e);
    			if (resp == -1) { 
    				this.modify();
    			} else if (resp == 1) { 
    				if(e==1){ 
    					this.chooseImage1();
    				}else{ 
    					this.chooseImage2();
    				}
    			}
    		},
    		// ios相机
    		async judgeIosPermissionCamera() { 
    			let resp = await permision.judgeIosPermissionCamera();
    			if (!resp) { 
    				this.modify();
    			} else { 
    				this.chooseImage1();
    			}
    		},
    		// ios相册
    		async judgeIosPermissionPhotoLibrary() { 
    			let resp = await permision.judgeIosPermissionPhotoLibrary();
    			if (!resp) { 
    				this.modify();
    			} else { 
    				this.chooseImage2();
    			}
    		},
    		//选择图片
    		chooseImage1() { 
    			var cmr = plus.camera.getCamera();
    			var cmr = plus.camera.getCamera();
    			var res = cmr.supportedImageResolutions[0];
    			var fmt = cmr.supportedImageFormats[0];
    			console.log('Resolution: ' + res + ', Format: ' + fmt);
    			cmr.captureImage(
    				(path)=> { 
    					console.log('Capture image success: ' + path);
    					this.photo = path;
    					//文件压缩
    					this.compress();
    				},
    				function(error) { 
    					console.log('Capture image failed: ' + error.message);
    				},
    				{  resolution: res, format: fmt }
    			);
    		},
    		//选择相册
    		chooseImage2(){ 
    			plus.gallery.pick(
    				(path)=> { 
    					console.log(path)
    					this.photo = path;
    					//文件压缩
    					this.compress();
    				},
    				function(e) { 
    					console.log('取消选择图片');
    				},
    				{  filter: 'image' }
    			);
    		},
    		//文件压缩
    		compress() { 
    			let photo = this.photo;
    			console.log(photo, '相片路径');
    			//通过URL参数获取文件对象
    			plus.io.resolveLocalFileSystemURL(
    				photo,
    				entry => { 
    					//可通过entry对象操作图片
    					entry.file(file => { 
    						//当文件大于30kb进行压缩
    						if (file.size > 30 * 1024) { 
    							plus.zip.compressImage(
    								{ 
    									src: photo,
    									dst: photo
    										.replace('.png', '2222.png')
    										.replace('.PNG', '2222.PNG')
    										.replace('.jpg', '2222.jpg')
    										.replace('.JPG', '2222.JPG'),
    									width: '200px',
    									height: '200px',
    									quality: 10,
    									overwrite: true
    								},
    								event => { 
    									let newPhoto = photo
    										.replace('.png', '2222.png')
    										.replace('.PNG', '2222.PNG')
    										.replace('.jpg', '2222.jpg')
    										.replace('.JPG', '2222.JPG');
    									console.log(newPhoto, '新相片');
    									this.getQiniuToken(newPhoto);
    								},
    								function(error) { 
    									uni.showModal({ 
    										content: '图片太大，需要重新选择图片',
    										showCancel: false
    									});
    								}
    							);
    						} else { 
    							console.log(newPhoto, '新相片');
    							this.getQiniuToken(photo);
    						}
    					});
    				},
    				e => { 
    					//返回错误信息
    					console.log(e.message);
    				}
    			);
    		},
    		//获取token
    		async getQiniuToken(file) { 
    			const res = await api.getQiniuToken();
    			let token = res.data;
    			let key = Math.round(new Date() / 1000) + this.userInfo.phone;
    			//上传文件至七牛
    			uni.uploadFile({ 
    				url: 'https://up-z2.qiniup.com',
    				filePath: file,
    				name: 'file',
    				formData: { 
    					key,
    					token
    				},
    				success: res => { 
    					if (res.statusCode == 200) { 
    						this.userInfo.headIcon = key;
    						//更新用户信息
    						this.updateUserInfo(this.userInfo);
    					}
    				},
    				error: res => { 
    					console.log(res);
    				}
    			});
    		},

[permission.js]: https://download.csdn.net/download/weixin_49295874/20666414
[https_ext.dcloud.net.cn_plugin_id_594_detail]: https://ext.dcloud.net.cn/plugin?id=594#detail