打开安卓手机图库和相机并裁剪图片上传到unity

1、建立一个空的安卓工程

2、在unity安装目录下找到classes.jar文件并导入到工程中的libs文件夹下(classes.jar目录为:unity安装目录\Editor\Data\PlaybackEngines\AndroidPlayer\Variations\il2cpp\Development\Classes)

3、右键工程中的classes.jar-->BuildPath-->Add to Build Path

4、修改MainActivity.java的代码

package com.player.fish;这里是自己的包名

 

import java.io.File;  

import java.io.FileNotFoundException;  

import java.io.FileOutputStream;  

import java.io.IOException;  

  

import com.unity3d.player.UnityPlayer;  

import com.unity3d.player.UnityPlayerActivity;  

  

import android.app.Activity;  

import android.content.ContentResolver;  

import android.content.Intent;  

import android.database.Cursor;  

import android.graphics.Bitmap;  

import android.graphics.BitmapFactory;  

import android.net.Uri;  

import android.os.Bundle;  

import android.os.Environment;  

import android.provider.MediaStore;  

import android.util.Log;

import android.widget.Toast;

 

public class MainActivity extends UnityPlayerActivity  {

 

 private static final String TAG = MainActivity.class.getSimpleName();  

    private static final int PHOTO_REQUEST_CODE = 1;//相册  

    public static final int PHOTOHRAPH = 2;// 拍照  

    public static final int PHOTOZOOM=3;//裁剪

    private static final boolean DEBUG = true;  

    private String savePath=""; //图片保存路径

    private String picturePath=""; //最终上传的文件路径

    private String unitygameobjectName = "BGPlane"; //Unity 中对应挂脚本对象的名称  

    public static final int NONE = 0;  

    @Override  

    protected void onCreate(Bundle savedInstanceState) {  

        super.onCreate(savedInstanceState);  

    }  

      

    //调用相机  

    public void Takephoto(){  

          

    Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);  

         intent.putExtra(MediaStore.EXTRA_OUTPUT, Uri.fromFile(new File(Environment.getExternalStorageDirectory(), "temp.jpg")));  

         startActivityForResult(intent, PHOTOHRAPH);  

          

    }  

      

    //调用相册  

    public void OpenGallery()  

    {  

     Intent intent = new Intent(Intent.ACTION_PICK,null);  

         intent.setDataAndType(MediaStore.Images.Media.EXTERNAL_CONTENT_URI,"image/*");  

         startActivityForResult(intent, PHOTO_REQUEST_CODE);  

    }  

     

  //裁剪图片

    public void CropPhoto(Uri uri) {

        //调用裁剪器

        Intent intent = new Intent("com.android.camera.action.CROP");

        intent.setDataAndType(uri, "image/*");

        // 开启裁剪功能

        intent.putExtra("crop", "true");

        //设置宽高的比例

        intent.putExtra("aspectX", 1);

        intent.putExtra("aspectY", 1);

        //裁剪图片宽高

        intent.putExtra("outputX", 100);

        intent.putExtra("outputY", 100);

        //请求返回数据

        intent.putExtra("return-data", true);

 

        startActivityForResult(intent, PHOTOZOOM);  

    }

   

    @Override  

    protected void onActivityResult(int requestCode, int resultCode, Intent data) {  

    // TODO Auto-generated method stub  

     super.onActivityResult(requestCode, resultCode, data);  

         if (resultCode == NONE){  

             return;  

         }  

         //相册

         else if(PHOTO_REQUEST_CODE == requestCode){  

             if(data == null){  

                 return;  

             }  

             Uri uri = data.getData();  

             savePath = getImagePath(uri);

             if(DEBUG){  

                 Log.d(TAG, savePath);  

             }  

             CropPhoto(uri);

         }  

           //相机

         else if (requestCode == PHOTOHRAPH) {   

         savePath = Environment.getExternalStorageDirectory() + "/temp.jpg";

             if(DEBUG){  

                 Log.e("path:", savePath);  

             }  

             CropPhoto(Uri.fromFile(new File(savePath)));

             try {  

                 Bitmap bitmap = BitmapFactory.decodeFile(savePath);    

                 SaveBitmap(bitmap);  

              } catch (IOException e) {  

                  e.printStackTrace();  

              }  

         }   

         //裁剪

         else if(PHOTOZOOM == requestCode){

         Bundle extras = data.getExtras();

         if(extras!=null)

         {

         try{

         Bitmap photo=extras.getParcelable("data");

         SaveBitmap(photo);

         }catch(IOException e)

         {

         e.printStackTrace();

         }

         

         }

         

         UnityPlayer.UnitySendMessage(unitygameobjectName, "GetImagePath", picturePath);  

         }

    }  

      

  

    

    

    private String getImagePath(Uri uri)  

    {  

        if(null == uri) return null;  

        String path = null;  

        final String scheme = uri.getScheme();  

        if (null == scheme) {  

            path = uri.getPath();  

        } else if (ContentResolver.SCHEME_FILE.equals(scheme)) {  

            path = uri.getPath();  

        } else if (ContentResolver.SCHEME_CONTENT.equals(scheme)) {  

            String[] proj = { MediaStore.Images.Media.DATA };  

            Cursor cursor = getContentResolver().query(uri, proj, null, null,  

                    null);  

            int nPhotoColumn = cursor  

                    .getColumnIndexOrThrow(MediaStore.Images.Media.DATA);  

            if (null != cursor) {  

                cursor.moveToFirst();  

                path = cursor.getString(nPhotoColumn);  

            }  

            cursor.close();  

        }  

        return path;  

    }  

      

    public void SaveBitmap(Bitmap bitmap) throws IOException {  

     FileOutputStream fOut = null;  

         String path = "/mnt/sdcard/DCIM/";   

         try {  

               //查看这个路径是否存在,  

               //如果并没有这个路径,  

               //创建这个路径  

               File destDir = new File(path);  

               if (!destDir.exists())  

               {  

                   destDir.mkdirs();  

               }  

             String FILE_NAME = System.currentTimeMillis() + ".jpg";

             picturePath=path + "/" + FILE_NAME;

             fOut = new FileOutputStream(path + "/" + FILE_NAME) ;

         } catch (FileNotFoundException e) {  

             e.printStackTrace();  

         }  

         //将Bitmap对象写入本地路径中  

         bitmap.compress(Bitmap.CompressFormat.JPEG, 100, fOut);  

         try {  

             fOut.flush();  

         } catch (IOException e) {  

             e.printStackTrace();  

         }  

         try {  

             fOut.close();  

         } catch (IOException e) {  

             e.printStackTrace();  

         }  

     }  

      

}

 

5、修改AndrlidManifest.xml,设置权限及相关信息

xml version="1.0" encoding="utf-8"?>

<manifest xmlns:android="http://schemas.android.com/apk/res/android"

    package="com.player.fish"

    android:versionCode="1"

    android:versionName="1.0" >

 

    

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

    

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

    

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

    

    <uses-sdk

        android:minSdkVersion="14"

        android:targetSdkVersion="21" />

 

    <application

        android:allowBackup="true"  

        android:icon="@drawable/ic_launcher"

        android:label="@string/app_name">

        <activity

            android:name="com.player.fish.MainActivity"

            android:screenOrientation="landscape"锁定横屏,竖屏的可以把这行删掉(注意横竖屏不匹配会导致闪退)

            android:label="@string/app_name" >

            <intent-filter>

                <action android:name="android.intent.action.MAIN" />

 

                <category android:name="android.intent.category.LAUNCHER" />

            intent-filter>

        activity>

        

    application>

    

manifest>

6、点击Project-->把Build Automatically前面的勾去掉,-->点击Clean-->Clean All Project-->OK

7、点击Project-->BuildProject

8、Win+R调出运行窗口-->CMD

9、将控制台地址改为安卓工程中classes文件夹地址(安卓工程目录\bin\classes)

更改方式为:目标磁盘+“:”-->回车变更磁盘地址

Cd\+磁盘后面的地址-->回车变更后面的文件夹地址

比如我的classes文件夹地址为D:\AndroidSDK\FishTest\bin\classes

 

 

10、将地址改为classes文件夹下后,将classes文件夹下面的所有jar包打包在一起,具体命令为 jar -vcf 压缩包名.jar *

比如我将jar包压缩为class.jar,那么命令为 jar -vcf class.jar *,打出来的包就在classes文件夹俩面

 

11、打开刚刚打出来的jar包(不是解压缩),按照包名的路径打开文件夹(我的包名为com.player.fish,所以文件夹结构为com-->player-->fish),删除里面所有带R和$的文件,否则打包回报错

 

12、在Unity工程中建立Plugins-->Android文件夹,将安卓工程中的AndroidManifest.xml文件以及assets文件夹还有res文件夹导入到Android文件夹下面,在Android文件夹下新建bin文件夹,将刚刚打出来的jar包放进去

 

13、准备工作全部完成,接下来开始写C#脚本

 private void Awake()

    {

        //将挂载此脚本的物体的名字改为和java脚本中的名字一致

        this.gameObject.name = "BGPlane";

    }

 

    //打开相册    

    public void OpenPhoto()

    {

        AndroidJavaClass jc = new AndroidJavaClass("com.unity3d.player.UnityPlayer");

        AndroidJavaObject jo = jc.GetStatic("currentActivity");

        jo.Call("OpenGallery");

    }

 

    //打开相机  

    public void OpenCamera()

    {

        AndroidJavaClass jc = new AndroidJavaClass("com.unity3d.player.UnityPlayer");

        AndroidJavaObject jo = jc.GetStatic("currentActivity");

        jo.Call("Takephoto");

    }

 

    //获取图片的调用

    public void GetImagePath(string imagePath)

    {

        if (imagePath == null)

            return;

        StartCoroutine("LoadImage", imagePath);

    }

    

    private IEnumerator LoadImage(string imagePath)

    {

        WWW www = new WWW("file://" + imagePath);

        yield return www;

        if (www.error == null)

        {

            //成功读取图片,写自己的逻辑  

            this.GetComponent().material.mainTexture = www.texture;

        }

        else

        {

            Debug.LogError("WWW Error:" + www.error);

        }

}

14、全部完成,打包(注意:playersetting中的包名要和安卓工程以及xml文件中的包名一致,挂在C#脚本的物体的名字在MainActivity.java中已经定义好,要保持一致;C#脚本中所有的方法都是通过消息传递来通知的,方法名要和MainActivity.java中定义的保持一致

 

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