Android 安卓将网络图片保存到相册

Android 安卓将网络图片保存到相册

封装了一个工具类！

请先加上读写权限:

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

  

 

  
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如果是Android6.0之后，加上权限后再动态申请权限

if (Build.VERSION.SDK_INT > Build.VERSION_CODES.LOLLIPOP) {
	if (ActivityCompat.checkSelfPermission(this, Manifest.permission.WRITE_EXTERNAL_STORAGE) != PackageManager.PERMISSION_GRANTED) {
		ActivityCompat.requestPermissions(this, new String[]{Manifest.permission.READ_EXTERNAL_STORAGE, Manifest.permission.WRITE_EXTERNAL_STORAGE}, 1);
	}
}

  

 

  
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使用方法：

//示例1：保存网络图片
SaveNetPhotoUtils.savePhoto(this, "https://profile.csdnimg.cn/5/F/3/3_qq_40881680");

//示例2：保存网络图片并且给图片命名
SaveNetPhotoUtils.savePhoto(this, "https://profile.csdnimg.cn/5/F/3/3_qq_40881680", "photoName.jpg");


  

 

  
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该类所带工具：

SaveNetPhotoUtils.savePhoto(上下文, 网络图片url);
SaveNetPhotoUtils.savePhoto(上下文, 网络图片url, 图片名字 + 后缀);

  

 

  
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工具类：

/**
 * @author ThirdGoddess
 * @email ofmyhub@gmail.com
 * @Github https://github.com/ThirdGoddess
 * @date :2020-03-14 10:11
 */
public class SaveNetPhotoUtils { private static Context contexts; private static String photoUrls; private static Bitmap bitmap; private static String mSaveMessage = "failed"; //自定义名字 private static String photoNames; /** * 保存图片，无须自定义名字 * * @param context * @param photoUrl */ public static void savePhoto(Context context, String photoUrl) { contexts = context; photoUrls = photoUrl; new Thread(saveFileRunnable).start(); } /** * 定义图片名字保存到相册 * * @param context * @param photoUrl * @param photoName 图片名字，定义格式 name.jpg/name.png/... */ public static void savePhoto(Context context, String photoUrl, String photoName) { contexts = context; photoUrls = photoUrl; photoNames = photoName; new Thread(saveFileRunnable2).start(); } private static Runnable saveFileRunnable = new Runnable() { @Override public void run() { try { if (!TextUtils.isEmpty(photoUrls)) { URL url = new URL(photoUrls); InputStream inputStream = url.openStream(); bitmap = BitmapFactory.decodeStream(inputStream); inputStream.close(); } saveFile(bitmap); mSaveMessage = "success！"; } catch (IOException e) { mSaveMessage = "failed"; e.printStackTrace(); } catch (Exception e) { e.printStackTrace(); } messageHandler.sendMessage(messageHandler.obtainMessage()); } }; private static Runnable saveFileRunnable2 = new Runnable() { @Override public void run() { try { if (!TextUtils.isEmpty(photoUrls)) { URL url = new URL(photoUrls); InputStream inputStream = url.openStream(); bitmap = BitmapFactory.decodeStream(inputStream); inputStream.close(); } saveFile(bitmap, photoNames); mSaveMessage = "success！"; } catch (IOException e) { mSaveMessage = "failed"; e.printStackTrace(); } catch (Exception e) { e.printStackTrace(); } messageHandler.sendMessage(messageHandler.obtainMessage()); } }; /** * 保存成功和失败通知 */ @SuppressLint("HandlerLeak") private static Handler messageHandler = new Handler() { @Override public void handleMessage(Message msg) { Toast.makeText(contexts, mSaveMessage, Toast.LENGTH_SHORT).show(); } }; /** * 保存图片 * * @param bm * @throws IOException */ public static void saveFile(Bitmap bm) throws IOException { File dirFile = new File(Environment.getExternalStorageDirectory().getPath()); if (!dirFile.exists()) { dirFile.mkdir(); } //图片命名 String fileName = UUID.randomUUID().toString() + ".jpg"; File myCaptureFile = new File(Environment.getExternalStorageDirectory().getPath() + "/DCIM/Camera/" + fileName); BufferedOutputStream bos = new BufferedOutputStream(new FileOutputStream(myCaptureFile)); bm.compress(Bitmap.CompressFormat.JPEG, 80, bos); bos.flush(); bos.close(); //广播通知相册有图片更新 Intent intent = new Intent(Intent.ACTION_MEDIA_SCANNER_SCAN_FILE); Uri uri = Uri.fromFile(myCaptureFile); intent.setData(uri); contexts.sendBroadcast(intent); } /** * 保存图片 * * @param bm * @param photoName 图片命名 * @throws IOException */ public static void saveFile(Bitmap bm, String photoName) throws IOException { File dirFile = new File(Environment.getExternalStorageDirectory().getPath()); if (!dirFile.exists()) { dirFile.mkdir(); } //图片命名后保存到相册 File myCaptureFile = new File(Environment.getExternalStorageDirectory().getPath() + "/DCIM/Camera/" + photoName); BufferedOutputStream bos = new BufferedOutputStream(new FileOutputStream(myCaptureFile)); bm.compress(Bitmap.CompressFormat.JPEG, 80, bos); bos.flush(); bos.close(); //广播通知相册有图片更新 Intent intent = new Intent(Intent.ACTION_MEDIA_SCANNER_SCAN_FILE); Uri uri = Uri.fromFile(myCaptureFile); intent.setData(uri); contexts.sendBroadcast(intent); }
}


  

 

  
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文章来源: blog.csdn.net，作者：第三女神程忆难，版权归原作者所有，如需转载，请联系作者。

原文链接：blog.csdn.net/qq_40881680/article/details/104855922