保存并查看Android设备的快照图像 [英] save and view snapshot image from android device

问题描述

我有一个问题，将图像保存到一个Android设备这是我做的
我的java类：

  package com.test.app; 
 
 import com.unity3d.player.UnityPlayerActivity; 
 import android.os.Bundle; 
 
 public class MainActivity extends UnityPlayerActivity 
 {
 protected void onCreate（Bundle myBundle）{
 super.onCreate（myBundle）; 
 
} 
 public string GetPath（）{
 return Environment.getExternalStorageDirectory（）。toString（）;在eclipse中，我将我的项目作为一个jar文件从
 $ 
 $ b  

< 项目设置 - >设置为库，从 libs 中获取 jar文件，并将其复制到： code>插件/ Android 在我的unity项目目录，然后创建一个新的Manifest.xml如下：

 code>< manifest xmlns：android =http://schemas.android.com/apk/res/androidpackage =com.test.app> 
< application android：icon =@ drawable / app_iconandroid：label =@ string / app_name> 
< activity android：name =。MainActivity
 android：label =@ string / app_name
 android：configChanges =fontScale | keyboard | keyboardHidden | locale | mnc | mcc |导航|取向|屏幕布置|屏幕尺寸| smallestScreenSize | uiMode |触摸屏> 
< intent-filter> 
< action android：name =android.intent.action.MAIN/> 
< category android：name =android.intent.category.LAUNCHER/> 
< / intent-filter> 
< / activity> 
< / application> 
< / manifest> 
  

然后是如下所示的unity c＃类：

  public class ScreenShot：MonoBehaviour {
 AndroidJavaClass pluginTutorialActivityJavaClass; 
公开GameObject panl; 
 void Start（）
 {
 AndroidJNI.AttachCurrentThread（）; 
 pluginTutorialActivityJavaClass = new AndroidJavaClass（com.test.app.MainActivity）; 
} 
 void OnMouseDown（）
 {
 StartCoroutine（takeShot（））; 
} 
 
私有IEnumerator takeShot（）
 {
 panl.SetActive（false）; // panl包含具有此脚本的按钮`ScreenShot class` 
 Application.CaptureScreenshot（my_img.png）; 
 //在移动上它是持久性数据路径
 string dir = Application.persistentDataPath +/my_img.png; 
 float timeOut = 0f; 
 //检查文件是否存在
 while（！File.Exists（dir））
 {
 Debug.Log（Cant find screenshot！）; 
 timeOut + = Time.deltaTime; 
 //它需要太多放弃
 if（timeOut> 5f）yield break; 
 yield返回null; 
} 
 //如果您的路径正确
 string yourPath = pluginTutorialActivityJavaClass.CallStatic< string>（GetPath）; 
 Debug.Log（yourPath）; 
 File.Copy（dir，yourPath +/my_img.png\",true）; 
 //也许删除源文件在这里？ 
} 
 
 
 
 
 
} 
  

但没有任何事情发生，我无法在设备上看到我的屏幕截图
有人可以告诉我我做错了什么？

解决方案

截图截图后，您需要复制它，在这种情况下，这样的协同工作应该会很好，

  private IEnumerator takeShot（）
 {
 Application.CaptureScreenshot（my_img.png）; 
 //在移动上它是持久性数据路径
 string dir = Application.persistentDataPath +/my_img.png; 
 float timeOut = 0f; 
 //检查文件是否存在
 while（！File.Exists（dir））
 {
 Debug.Log（Cant find screenshot！）; 
 timeOut + = Time.deltaTime; 
 //它需要太多放弃
 if（timeOut> 5f）yield break; 
 yield返回null; 
} 
 //如果您的路径正确
 string yourPath = pluginTutorialActivityJavaClass.CallStatic< string>（GetPath）; 
 Debug.Log（yourPath）; 
 File.Copy（dir，yourPath +/my_img.png\",true）; 
 //也许删除源文件在这里？ 
} 
  

这是基本的想法，我假设你的java代码获取外部存储路径不要忘记导入 System.IO 。

I'm having a problem with saving image into an android device this is what i did My java class :

package com.test.app;

import com.unity3d.player.UnityPlayerActivity;
import android.os.Bundle;

public class MainActivity extends UnityPlayerActivity
{
 protected void onCreate(Bundle myBundle) {
        super.onCreate(myBundle);

    }
public string GetPath(){
  return Environment.getExternalStorageDirectory().toString();
}
}

in eclipse i made my project as a jar file from project setting --> set as library , got the jar file from libs and copy past it in : Plugins/Android in my unity project directory , then created a new Manifest.xml as followed :

<manifest xmlns:android="http://schemas.android.com/apk/res/android" package="com.test.app">
  <application android:icon="@drawable/app_icon" android:label="@string/app_name">
    <activity android:name=".MainActivity"
             android:label="@string/app_name"
             android:configChanges="fontScale|keyboard|keyboardHidden|locale|mnc|mcc|navigation|orientation|screenLayout|screenSize|smallestScreenSize|uiMode|touchscreen">
        <intent-filter>
            <action android:name="android.intent.action.MAIN" />
            <category android:name="android.intent.category.LAUNCHER" />
        </intent-filter>
    </activity>
  </application>
</manifest>

then the unity c# class as followed :

public class ScreenShot : MonoBehaviour {
  AndroidJavaClass pluginTutorialActivityJavaClass;
  Public GameObject panl;
void Start()
{
    AndroidJNI.AttachCurrentThread();
        pluginTutorialActivityJavaClass = new AndroidJavaClass("com.test.app.MainActivity");
}
void OnMouseDown()
{
  StartCoroutine(takeShot());
}

private IEnumerator takeShot()
 {
   panl.SetActive(false); // the panl contain the button having this script `ScreenShot class` 
   Application.CaptureScreenshot("my_img.png");
   // on mobile it's at persistant data path
   string dir = Application.persistentDataPath + "/my_img.png";
   float timeOut = 0f;
   // check if file exists
   while (!File.Exists(dir))
  {
    Debug.Log("Cant find screenshot!");
    timeOut += Time.deltaTime;
    // it it takes too much give up
    if (timeOut > 5f) yield break; 
    yield return null;           
  }
  // If your path is correct
   string yourPath = pluginTutorialActivityJavaClass.CallStatic<string>("GetPath");
   Debug.Log(yourPath);
  File.Copy(dir, yourPath + "/my_img.png",true);
  // maybe delete source file here?
 }





}

but nothing is happening , i am not able to see my screenshot on the device can someone tell me what i did wrong ???

解决方案

After taking screenshot you need to copy it, a coroutine like this should work well under this case,

private IEnumerator takeShot()
{
    Application.CaptureScreenshot("my_img.png");
    // on mobile it's at persistant data path
    string dir = Application.persistentDataPath + "/my_img.png";
    float timeOut = 0f;
    // check if file exists
    while (!File.Exists(dir))
    {
        Debug.Log("Cant find screenshot!");
        timeOut += Time.deltaTime;
        // it it takes too much give up
        if (timeOut > 5f) yield break; 
        yield return null;           
    }
    // If your path is correct
    string yourPath = pluginTutorialActivityJavaClass.CallStatic<string>("GetPath");
    Debug.Log(yourPath);
    File.Copy(dir, yourPath + "/my_img.png",true);
    // maybe delete source file here?
}

This is the basic idea, I assume your java code for getting external storage path works.Also don't forget to import System.IO.

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