//Java UpdateUtil.java
package com.cdx.unity3d;
import android.content.Context;
import android.content.Intent;
import android.net.Uri;
import android.os.Build;
import android.support.v4.content.FileProvider;
import java.io.File;
import android.app.Activity;
import android.app.AlertDialog;
import android.app.ProgressDialog;
import android.content.DialogInterface;
import android.os.Handler;
import android.os.Message;
import com.unity3d.player.UnityPlayer;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.URL;
public class UpdateUtil {
private Context mContext;
private String apkUrl;
private String savePath;
private String saveFileName;
private String downloadMsg;
private int progress;
private ProgressDialog downloadDialog;
private Thread downLoadThread;
private boolean interceptFlag = false;
public UpdateUtil(Context context)
{
this.mContext = context;
}
/**
* 更新下载apk
*/
public static void downLoadApk(final String url, final String storge, Boolean showNotify) {
final Activity activity = UnityPlayer.currentActivity;
activity.runOnUiThread(new Runnable()
{
public void run()
{
UpdateUtil updater = new UpdateUtil((Context)activity);
updater.Download(url, storge);
}
});
}
public void Download(String url, String storge)
{
this.apkUrl = url;
this.savePath = storge;
this.saveFileName = storge;
this.downloadDialog = new ProgressDialog(this.mContext);
this.downloadDialog.setTitle("游戏更新");
this.downloadDialog.setMessage("请稍后。。。");
this.downloadDialog.setProgressStyle(1);
this.downloadDialog.setCancelable(false);
this.downloadDialog.setCanceledOnTouchOutside(false);
this.downloadDialog.setMax(100);
this.downloadDialog.show();
downloadApk();
}
private void downloadApk()
{
this.downLoadThread = new Thread(this.mdownApkRunnable);
this.downLoadThread.start();
}
private Runnable mdownApkRunnable = new Runnable()
{
public void run()
{
try
{
URL url = new URL(UpdateUtil.this.apkUrl);
HttpURLConnection conn = (HttpURLConnection)url.openConnection();
conn.connect();
int length = conn.getContentLength();
InputStream is = conn.getInputStream();
File file = new File(UpdateUtil.this.saveFileName);
if (file.isFile()) {
file = new File(file.getParent());
}
if ((file.isDirectory()) && (!file.exists())) {
file.mkdir();
}
String apkFile = UpdateUtil.this.saveFileName;
File ApkFile = new File(apkFile);
FileOutputStream fos = new FileOutputStream(ApkFile);
String fName = UpdateUtil.this.apkUrl.trim();
fName = fName.substring(fName.lastIndexOf("/") + 1,fName.lastIndexOf("?"));
UpdateUtil.this.downloadMsg = ("正在下载文件:" + fName);
UpdateUtil.this.mHandler.sendEmptyMessage(0);
int count = 0;
byte[] buf = new byte[1024];
do
{
int numread = is.read(buf);
count += numread;
UpdateUtil.this.progress = ((int)((float)count / (float) length * 100.0F));
UpdateUtil.this.downloadMsg = ("正在下载文件:" + fName + " " + count / 1024 + "kb/" + length / 1024 + "kb");
UpdateUtil.this.mHandler.sendEmptyMessage(1);
if (numread <= 0) {
break;
}
fos.write(buf, 0, numread);
} while (!UpdateUtil.this.interceptFlag);
fos.close();
is.close();
UpdateUtil.this.mHandler.sendEmptyMessage(2);
}
catch (MalformedURLException e)
{
e.printStackTrace();
UpdateUtil.this.downloadMsg = ("下载失败，出现异常:" + e.getMessage());
UpdateUtil.this.mHandler.sendEmptyMessage(3);
}
catch (IOException e)
{
e.printStackTrace();
UpdateUtil.this.downloadMsg = ("下载失败，出现异常:" + e.getMessage());
UpdateUtil.this.mHandler.sendEmptyMessage(3);
}
}
};
private Handler mHandler = new Handler()
{
public void handleMessage(Message msg)
{
switch (msg.what)
{
case 0:
UpdateUtil.this.downloadDialog.setMessage(UpdateUtil.this.downloadMsg);
break;
case 1:
UpdateUtil.this.downloadDialog.setMessage(UpdateUtil.this.downloadMsg);
UpdateUtil.this.downloadDialog.setProgress(UpdateUtil.this.progress);
break;
case 2:
UpdateUtil.this.installApk();
UpdateUtil.this.downloadDialog.dismiss();
break;
case 3:
UpdateUtil.this.downloadDialog.dismiss();
AlertDialog.Builder builder = new AlertDialog.Builder(UpdateUtil.this.mContext);
builder.setTitle("下载失败");
builder.setMessage("是否重试?");
builder.setPositiveButton("确定", new DialogInterface.OnClickListener()
{
public void onClick(DialogInterface dialog, int which)
{
dialog.dismiss();
UpdateUtil.this.Download(UpdateUtil.this.apkUrl, UpdateUtil.this.savePath);
}
});
builder.setNegativeButton("取消", new DialogInterface.OnClickListener()
{
public void onClick(DialogInterface dialog, int which)
{
dialog.dismiss();
Activity act = (Activity)UpdateUtil.this.mContext;
act.finish();
}
});
builder.create().show();
break;
}
}
};
/**
* 安装apk
*/
private void installApk() {
Intent intent = new Intent(Intent.ACTION_VIEW);
intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
Uri data = null;
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {//判断版本大于等于7.0
// 生成文件的uri，，
// 注意 下面参数com.xxx.xxx.fileprovider为apk的包名加上.fileprovider，
data = FileProvider.getUriForFile(this.mContext, "com.xxx.xxx.fileprovider", new File(this.saveFileName));
intent.setFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);// 给目标应用一个临时授权
} else {
data = Uri.fromFile(new File(this.saveFileName));
}
intent.setDataAndType(data, "application/vnd.android.package-archive");
this.mContext.startActivity(intent);
}
}修改Plugins/Android/AndroidManifest.xml文件，添加权限和provider
<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" /> <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" /> <uses-permission android:name="android.permission.REQUEST_INSTALL_PACKAGES" /> <provider android:name="android.support.v4.content.FileProvider" android:authorities="com.zfzx.cyzx.fileprovider" android:exported="false" android:grantUriPermissions="true"> <meta-data android:name="android.support.FILE_PROVIDER_PATHS" android:resource="@xml/filepaths"/> </provider>
在Plugins/Android/res/xml下添加filepaths.xml文件，注意替换包名！
<?xml version="1.0" encoding="utf-8"?> <paths xmlns:android="http://schemas.android.com/apk/res/android"> <!--<external-path name="external_files" path="."/>--> <external-path path="Android/data/包名!" name="files_root" /> <external-path path="." name="external_storage_root" /> </paths>
这样把下载的apk的文件保存在Application.persistentDataPath目录下，也就是在downloadApk方法中传入的storge参数为Application.persistentDataPath + "/包.apk"就可以了。如果打包不了或报错了，将android-support-v4.jar放到Plugins/Android目录下。