ionic2 儲存圖片到手機相簿
ionic2 儲存圖片到手機相簿需要2個原生外掛
一、原生外掛安裝
1、Android Permissions
通過以下命令下載
ionic plugin add cordova-plugin-android-permissions
npm install --save @ionic-native/android-permissions
2、Photo Library
通過以下命令下載
ionic plugin add cordova-plugin-photo-library --variable PHOTO_LIBRARY_USAGE_DESCRIPTION="To choose photos"
npm install --save @ionic-native/photo-library
將以上原生外掛引入 app.module.ts 內
import{ PhotoLibrary }from'@ionic-native/photo-library';
import{ AndroidPermissions }from'@ionic-native/android-permissions';
二、在儲存圖片之前先要確認有沒有許可權去儲存到相簿，沒有許可權的話需要 傳送請求去讓使用者開啟許可權，然後在儲存圖片
在元件內引入外掛並依賴注入
import{ PhotoLibrary }from'@ionic-native/photo-library';
import{ AndroidPermissions }from'@ionic-native/android-permissions';
constructor(private androidPermissions:AndroidPermissions,private photoLibrary:PhotoLibrary）{}
/**
* 儲存圖片
* @param url 圖片路徑
*/
saveImage(url:string){
this.androidPermissions.checkPermission(this.androidPermissions.PERMISSION.WRITE_EXTERNAL_STORAGE).then((result)=>{
if(!result.hasPermission) {
return this.ap.requestPermission(this.ap.PERMISSION.WRITE_EXTERNAL_STORAGE);
}else{
return Promise.resolve({hasPermission:true});
}
}）.then((hasPermission)=>{
if(hasPermission){
this.photoLibrary.saveImage(srcUrl,'images').then((res)=>{
console.log(res);
}).catch(e=>{
console.log(e);
});
}else{
this.photoLibrary.saveImage(srcUrl,'images').then((res)=>{
console.log(res);
}).catch(e=>{
console.log(e);
});
}
}).catch(err=>{
this.ap.requestPermission(this.ap.PERMISSION.WRITE_EXTERNAL_STORAGE).then(suc=>{
this.photoLibrary.saveImage(srcUrl,'images').then((res)=>{
console.log(res);
}).catch(e=>{
console.log(e);
});
});
})
}