Unity保存图片到相册
Unity保存圖片到Android相冊
Java]?純文本查看?復制代碼
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| 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 | package com.xuefei.game; import java.io.File; import java.io.FileNotFoundException; import java.io.FileOutputStream; import java.io.IOException; import com.unity3d.player.UnityPlayerNativeActivity; import android.content.Context; import android.content.Intent; import android.graphics.Bitmap; import android.graphics.Bitmap.CompressFormat; import android.graphics.BitmapFactory; import android.net.Uri; import android.os.Bundle; import android.os.Environment; import android.util.Log; import android.widget.Toast; public class MainActivity extends UnityPlayerNativeActivity { ????public static Context context; ????public static MainActivity mainActivity; ????@Override ????protected void onCreate(Bundle savedInstanceState) { ????????super.onCreate(savedInstanceState); ????????mainActivity = this; ????} ????// 保存到相冊 ????public static void savePng(final String fileName) { ????????context = mainActivity.getApplicationContext(); ????????mainActivity.runOnUiThread(new Runnable() { ????????????public void run() { ????????????????Bitmap bitmap = BitmapFactory.decodeFile(Environment ????????????????????????.getExternalStorageDirectory() ????????????????????????+ "/Android/data/com.xuefei.game/files/" ????????????????????????+ fileName ????????????????????????+ ".png"); ????????????????File file = new File(Environment.getExternalStorageDirectory() ????????????????????????+ "/DCIM/Camera", fileName + ".jpg"); ????????????????FileOutputStream fos = null; ????????????????try { ????????????????????fos = new FileOutputStream(file); ????????????????} catch (FileNotFoundException e) { ????????????????????// TODO Auto-generated catch block ????????????????????Log.w("cat", e.toString()); ????????????????} ????????????????bitmap.compress(CompressFormat.JPEG, 100, fos); ????????????????try { ????????????????????fos.flush(); ????????????????} catch (IOException e) { ????????????????????// TODO Auto-generated catch block ????????????????????Log.w("cat", e.toString()); ????????????????} ????????????????try { ????????????????????fos.close(); ????????????????} catch (IOException e) { ????????????????????// TODO Auto-generated catch block ????????????????????Log.w("cat", e.toString()); ????????????????} ????????????????bitmap.recycle();//掃描保存的圖片 ????????????????context.sendBroadcast(new Intent(Intent.ACTION_MEDIA_SCANNER_SCAN_FILE, Uri.parse("file://" +Environment.getExternalStorageDirectory() ????????????????????????+ "/DCIM/Camera/"+fileName + ".jpg"))); ????????????????? ????????????????Toast.makeText(context, "照片已保存到相冊", Toast.LENGTH_SHORT).show(); ?? ????????????} ????????}); ????} } |
Unity中代碼：
[C#]?純文本查看?復制代碼
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| 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 | if (GUI.Button(new Rect(0, 720, 400, 120), "SavePng")) ????????{ ????????????StartCoroutine(SavePngToSD(DateTime.Now.ToFileTime().ToString())); ????????} /// <summary> ????/// 截圖后先檢測圖片是否保存成功然后調用保存到相冊 ????/// </summary> ????/// <param name="name"></param> ????public void SavePng(string name) ????{ #if UNITY_ANDROID ????????AndroidJavaClass jc = new AndroidJavaClass("com.unity3d.player.UnityPlayer"); ????????AndroidJavaObject jo = jc.GetStatic<AndroidJavaObject>("currentActivity"); ????????jo.CallStatic("SavePng", name); #elif? UNITY_IPHONE #endif ????} /// <summary> ????/// 保存截圖到相冊 ????/// </summary> ????/// <param name="pngName"></param> ????/// <returns></returns> ????IEnumerator SavePngToSD(string pngName) ????{ ????????yield return new WaitForEndOfFrame(); ????????Application.CaptureScreenshot(pngName + ".png"); ????????while (!IsFileExistByPath(Application.persistentDataPath + "/" + pngName + ".png")) ????????{ ????????????yield return new WaitForSeconds(0.05f); ????????} ????????SavePng(pngName); ????????yield return new WaitForSeconds(0.3f); ????????//測試請求文件 ????????WWW www = new WWW("file:///" + Application.persistentDataPath + "/" + pngName + ".png"); ????????yield return www; ????} ????/// <summary> ????/// 檢測文件是否存在 ????/// </summary> ????/// <param name="path"></param> ????/// <returns></returns> ????public static bool IsFileExistByPath(string path) ????{ ????????FileInfo info = new FileInfo(path); ????????bool b = false; ????????if (info == null || info.Exists == false) ????????{ ????????????b = false; ????????} ????????else ????????{ ????????????b = true; ????????} ????????return b; ????} |
注意文件路徑是否存在，不存在就創建
流程：Unity截屏--調用安卓拷貝到相冊--掃描保存的文件
解決的問題：截屏圖片在相冊不顯示。
Unity截屏插入iOS相冊?
[C#]?純文本查看?復制代碼
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| ? 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 | using System; using System.IO; ? #if UNITY_IOS using System.Runtime.InteropServices; #endif ? using UnityEngine; ? public class UnityPlugins : MonoBehaviour { ? ????// Use this for initialization ????void Start() ????{ ? ????} ? ????// Update is called once per frame ????void Update() ????{ ? ????} ? ????#if UNITY_IOS ????[DllImport("__Internal")] ????private static extern void _SavePhoto(string readAddr); ????#endif ? ????string path = ""; ? ????private void OnGUI() ????{ ? ????????if (GUILayout.Button("TakePhoto", GUILayout.Height(300), GUILayout.Width(300))) ????????{ ????????????CaptureCamera(); ????????????Debug.Log("TakePhoto"); ????????}? ????} ? ? ????void CaptureCamera() ????{ ????????Camera camera = Camera.main; ????????string name = DateTime.Now.ToFileTime().ToString(); ? ????????Rect rect = new Rect(0, 0, Screen.width, Screen.height); ? ????????RenderTexture rt = new RenderTexture(Screen.width, Screen.height, 0); ????????Texture2D frame = new Texture2D(Screen.width, Screen.height, TextureFormat.RGBA32, false); ? ????????camera.targetTexture = rt; ????????camera.Render(); ? ????????RenderTexture.active = rt; ????????frame.ReadPixels(rect, 0, 0); ????????frame.Apply(); ? ????????camera.targetTexture = null;? ????????RenderTexture.active = null;?? ? ????????byte [] bytes = frame.EncodeToJPG(); ? ????????File.WriteAllBytes(Application.persistentDataPath + "/" + name + ".jpg",bytes); ? ????????#if UNITY_IOS ????????_SavePhoto(Application.persistentDataPath + "/" + name + ".jpg"); ????????#endif ????} ? } |
iOS代碼
[AppleScript]?純文本查看?復制代碼
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| ? 1 2 3 4 5 | #import <Foundation/Foundation.h>? ???? @interface UnityPlugins : NSObject? - ( void ) imageSaved: ( UIImage *) image didFinishSavingWithError:( NSError *)error?? ????contextInfo: ( void *) contextInfo;? @end |
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[AppleScript]?純文本查看?復制代碼
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| ? 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 | #import "UnityPlugins.h"? @implementation UnityPlugins? - ( void ) imageSaved: ( UIImage *) image didFinishSavingWithError:( NSError *)error?? ????contextInfo: ( void *) contextInfo? {? ????NSLog(@"保存結束");? ????if (error != nil) {? ????????NSLog(@"有錯誤");? ????}? }? void _SavePhoto(char *readAddr)? {? ????NSString *strReadAddr = [NSString stringWithUTF8String:readAddr];? ????UIImage *img = [UIImage imageWithContentsOfFile:strReadAddr];? ????NSLog([NSString stringWithFormat:@"w:%f, h:%f", img.size.width, img.size.height]);? ????UnityPlugins *instance = [UnityPlugins alloc];? ????UIImageWriteToSavedPhotosAlbum(img, instance,?? ????????@selector(imageSaved:didFinishSavingWithError:contextInfo:), nil);? }? @end |
目錄結構
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導出Xcode工程后或者??修改Info.plist??打開 Info.plist，點擊 + 號，在 Key 中輸入：Privacy - Photo Library Additions Usage Description，Type 選擇 String，Value 中輸入你的提示語（比如XXX訪問相冊）再次 Build
總結
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