Unity3D研究院之打开照相机与本地相册进行裁剪显示（三十三）

package com.xys;

import android.content.Context;
import android.content.Intent;
import android.os.Bundle;
import com.unity3d.player.UnityPlayerActivity;

public class UnityTestActivity extends UnityPlayerActivity {
//public class UnityTestActivity extends Activity {

	Context mContext = null;

	@Override
	public void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		mContext = this;
	}

	//Unity中会调用这个方法，用于区分打开摄像机 开始本地相册
	 public void TakePhoto(String str)
	 {
	         Intent intent = new Intent(mContext,WebViewActivity.class);
	         intent.putExtra("type", str);
	         this.startActivity(intent);
	 }
}

package com.xys;

import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;

import com.unity3d.player.UnityPlayer;

import android.app.Activity;
import android.content.Intent;
import android.graphics.Bitmap;
import android.net.Uri;
import android.os.Bundle;
import android.os.Environment;
import android.provider.MediaStore;
import android.view.KeyEvent;
import android.widget.ImageView;

public class WebViewActivity extends Activity
{

    ImageView imageView = null;  

    public static final int NONE = 0;
    public static final int PHOTOHRAPH = 1;// 拍照
    public static final int PHOTOZOOM = 2; // 缩放
    public static final int PHOTORESOULT = 3;// 结果  

    public static final String IMAGE_UNSPECIFIED = "image/*";  

    public final static String FILE_NAME = "image.png";
    public final static String DATA_URL = "/data/data/";

	@Override
	protected void onCreate(Bundle savedInstanceState) {

		super.onCreate(savedInstanceState);

		setContentView(R.layout.main);

		imageView = (ImageView) this.findViewById(R.id.imageID);

		String type = this.getIntent().getStringExtra("type");

		//在这里判断是打开本地相册还是直接照相
		if(type.equals("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);
		}else
		{
		       Intent intent = new Intent(Intent.ACTION_PICK, null);
               intent.setDataAndType(MediaStore.Images.Media.EXTERNAL_CONTENT_URI, IMAGE_UNSPECIFIED);
               startActivityForResult(intent, PHOTOZOOM);
		}

    }  

    @Override
    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
        if (resultCode == NONE)
            return;
        // 拍照
        if (requestCode == PHOTOHRAPH) {
            //设置文件保存路径这里放在跟目录下
            File picture = new File(Environment.getExternalStorageDirectory() + "/temp.jpg");
            startPhotoZoom(Uri.fromFile(picture));
        }  

        if (data == null)
            return;  

        // 读取相册缩放图片
        if (requestCode == PHOTOZOOM) {
            startPhotoZoom(data.getData());
        }
        // 处理结果
        if (requestCode == PHOTORESOULT) {
            Bundle extras = data.getExtras();
            if (extras != null) {  

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

            	try {
            		SaveBitmap(photo);
				} catch (IOException e) {
					// TODO Auto-generated catch block
					e.printStackTrace();
				}
            }  

        }  

        super.onActivityResult(requestCode, resultCode, data);
    }  

    public void startPhotoZoom(Uri uri) {
        Intent intent = new Intent("com.android.camera.action.CROP");
        intent.setDataAndType(uri, IMAGE_UNSPECIFIED);
        intent.putExtra("crop", "true");
        // aspectX aspectY 是宽高的比例
        intent.putExtra("aspectX", 1);
        intent.putExtra("aspectY", 1);
        // outputX outputY 是裁剪图片宽高
        intent.putExtra("outputX", 300);
        intent.putExtra("outputY", 300);
        intent.putExtra("return-data", true);
        startActivityForResult(intent, PHOTORESOULT);
    }  

	public void SaveBitmap(Bitmap bitmap) throws IOException {

		FileOutputStream fOut = null;

		//注解1
		String path = "/mnt/sdcard/Android/data/com.xys/files";
		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();

			  }

			fOut = new FileOutputStream(path + "/" + FILE_NAME) ;
		} catch (FileNotFoundException e) {
			e.printStackTrace();
		}
		//将Bitmap对象写入本地路径中，Unity在去相同的路径来读取这个文件
		bitmap.compress(Bitmap.CompressFormat.PNG, 100, fOut);
		try {
			fOut.flush();
		} catch (IOException e) {
			e.printStackTrace();
		}
		try {
			fOut.close();
		} catch (IOException e) {
			e.printStackTrace();
		}
	}

	@Override
	public boolean onKeyDown(int keyCode, KeyEvent event)
	{
		if (keyCode == KeyEvent.KEYCODE_BACK && event.getRepeatCount() == 0)
		{
			   //当用户点击返回键是 通知Unity开始在"/mnt/sdcard/Android/data/com.xys/files";路径中读取图片资源，并且现在在Unity中
			   UnityPlayer.UnitySendMessage("Main Camera","message",FILE_NAME);

		}
		return super.onKeyDown(keyCode, event);
	}
}

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.xys"
    android:versionCode="1"
    android:versionName="1.0" >

    <uses-sdk android:minSdkVersion="10" />

    <application
        android:icon="@drawable/ic_launcher"
        android:label="@string/app_name" >
        <activity
            android:name=".UnityTestActivity"
            android:label="@string/app_name" >
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

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

       <activity
            android:name=".WebViewActivity">
        </activity>
    </application>

    <!-- 连接互联网的权限 -->
    <uses-permission android:name="android.permission.INTERNET" />
    <!-- SDCard中创建与删除文件权限 -->
<uses-permission android:name="android.permission.MOUNT_UNMOUNT_FILESYSTEMS"/>
<!-- SDCard写入数据权限 -->
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
</manifest>

using UnityEngine;
using System.Collections;
using System.IO;

public class Test : MonoBehaviour
{
	public GUISkin skin;
	Texture texture;

	void Update ()
	{

		if (Input.GetKeyDown(KeyCode.Escape) || Input.GetKeyDown(KeyCode.Home))
  		{
   			Application.Quit();
  		}
	}

	void OnGUI()
	{
		 GUI.skin = skin;

		if(GUILayout.Button("打开手机相册"))
		{
			 //调用我们制作的Android插件打开手机相册
			 AndroidJavaClass jc = new AndroidJavaClass("com.unity3d.player.UnityPlayer");
      	 	 AndroidJavaObject jo = jc.GetStatic<AndroidJavaObject>("currentActivity");
        	 jo.Call("TakePhoto","takeSave");

		}
		if(GUILayout.Button("打开手机摄像机"))
		{
			 //调用我们制作的Android插件打开手机摄像机
			 AndroidJavaClass jc = new AndroidJavaClass("com.unity3d.player.UnityPlayer");
      	 	 AndroidJavaObject jo = jc.GetStatic<AndroidJavaObject>("currentActivity");
        	 jo.Call("TakePhoto","takePhoto");

		}
		if(texture != null)
		{
			//注意！ 我们在这里绘制Texture对象，该对象是通过
			//我们制作的Android插件得到的，当这个对象不等于空的时候
			//直接绘制。
			GUI.DrawTexture(new Rect(100,300,300,300),texture);
		}
	}

	void  messgae(string str)
	{
		//在Android插件中通知Unity开始去指定路径中找图片资源
		StartCoroutine(LoadTexture(str));

	}

  IEnumerator LoadTexture(string name)
  {
	//注解1
	string path  =  "file://" + Application.persistentDataPath +"/" + name;

	WWW www = new WWW(path);
	while (!www.isDone)
	{

	}
	yield return www;
	//为贴图赋值
	texture = www.texture;
  }
}