参考链接:
http://www.cnblogs.com/hxsyl/archive/2014/05/14/3727291.html
环境:
MyEclipse + 局域网
pc在局域网中的IP地址:
在控制面板---网络和Internet---网络和共享中心,点击本地连接---详细信息,其中IPv4地址即为局域网IP地址。
1.服务器端
新建一个web project,命名为UpdateServer,然后开启tomcat服务器,并把UpdateServer部署在服务器上。然后在UpdateServer/WebRoot下新建一个json文件,命名为version,添加如下的内容:
{ "version":"2.0", "apk":"http://172.25.225.24:8080/UpdateServer/UpdateClient.apk", "description":"检测到最新版本2.0,请及时更新!" }
然后在浏览器输入:http://172.25.225.24:8080/UpdateServer/version.json,如果访问成功,则浏览器会出现下载json文件的提示。
172.25.225.24是pc在局域网中的IP地址,8080是tomcat的端口号
新建一个android project,命名为UpdateClient,然后在strings.xml中添加:
<string name="version_server">http://172.25.225.24:8080/UpdateServer/version.json</string>当检查版本更新时,就可以访问这个url获取服务器的版本信息了。
在AndroidManifest.xml中添加访问网络和sd卡的权限:
<uses-permission android:name="android.permission.INTERNET"/> <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
package com.example.updateclient; public class VersionInfo { private String version; private String apk; private String description; public String getVersion() { return version; } public void setVersion(String version) { this.version = version; } public String getApk() { return apk; } public void setApk(String apk) { this.apk = apk; } public String getDescription() { return description; } public void setDescription(String description) { this.description = description; } }
package com.example.updateclient; import java.io.BufferedInputStream; import java.io.File; import java.io.FileOutputStream; import java.io.InputStream; import java.net.HttpURLConnection; import java.net.URL; import android.app.ProgressDialog; import android.os.Environment; public class DownLoadManager { public static File getFileFromServer(String path, ProgressDialog pd) throws Exception { //如果相等的话表示当前的sdcard挂载在手机上并且是可用的 if(Environment.getExternalStorageState().equals(Environment.MEDIA_MOUNTED)){ URL url = new URL(path); HttpURLConnection conn = (HttpURLConnection) url.openConnection(); conn.setConnectTimeout(5000); //获取到文件的大小 pd.setMax(conn.getContentLength()); File file = new File(Environment.getExternalStorageDirectory(), "update.apk"); FileOutputStream fos = new FileOutputStream(file); InputStream is = conn.getInputStream(); BufferedInputStream bis = new BufferedInputStream(is); byte[] buffer = new byte[1024]; int len; int total = 0; while((len =bis.read(buffer)) != -1){ fos.write(buffer, 0, len); total += len; //获取当前下载量 pd.setProgress(total); } fos.close(); bis.close(); is.close(); return file; } else { return null; } } }
package com.example.updateclient; import java.io.File; import org.json.JSONException; import org.json.JSONObject; import com.android.volley.RequestQueue; import com.android.volley.Response; import com.android.volley.Response.Listener; import com.android.volley.VolleyError; import com.android.volley.toolbox.JsonObjectRequest; import com.android.volley.toolbox.Volley; import android.app.Activity; import android.app.AlertDialog; import android.app.AlertDialog.Builder; import android.app.ProgressDialog; import android.content.DialogInterface; import android.content.Intent; import android.content.pm.PackageInfo; import android.content.pm.PackageManager; import android.content.pm.PackageManager.NameNotFoundException; import android.net.Uri; import android.os.Bundle; import android.util.Log; import android.view.View; import android.view.View.OnClickListener; import android.widget.Button; import android.widget.Toast; public class MainActivity extends Activity { private RequestQueue requestQueue; private VersionInfo versionInfo; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); requestQueue = Volley.newRequestQueue(getApplicationContext()); versionInfo = new VersionInfo(); ((Button)findViewById(R.id.checkUpdate)).setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { checkVersion(); } }); } //获取客户端的版本信息 private String getClientVersion() { //getPackageName()是你当前类的包名,0代表是获取版本信息 PackageManager packageManager = getPackageManager(); PackageInfo packInfo = null; try { packInfo = packageManager.getPackageInfo(getPackageName(),0); } catch (NameNotFoundException e) { e.printStackTrace(); } return packInfo.versionName; } //检查版本信息 private void checkVersion() { String url = getResources().getString(R.string.version_server); JsonObjectRequest jor = new JsonObjectRequest(url, null, new Listener<JSONObject>() { @Override public void onResponse(JSONObject response) { try { versionInfo.setVersion(response.getString("version")); versionInfo.setApk(response.getString("apk")); versionInfo.setDescription(response.getString("description")); if(getClientVersion().equalsIgnoreCase(versionInfo.getVersion())) { Toast.makeText(getApplicationContext(), "已是最新版本", Toast.LENGTH_SHORT).show(); } else { showUpdataDialog(); } } catch (JSONException e) { e.printStackTrace(); } } }, new Response.ErrorListener() { @Override public void onErrorResponse(VolleyError error) { Log.v("error", error.toString()); } }); requestQueue.add(jor); } /* * 弹出对话框的步骤: * 1.创建alertDialog的builder. * 2.要给builder设置属性, 对话框的内容,样式,按钮 * 3.通过builder 创建一个对话框 * 4.对话框show()出来 */ private void showUpdataDialog() { AlertDialog.Builder builer = new Builder(MainActivity.this); builer.setTitle("版本升级"); builer.setMessage(versionInfo.getDescription()); builer.setPositiveButton("确定", new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { Toast.makeText(getApplicationContext(), "开始下载", Toast.LENGTH_SHORT).show(); downLoadApk(); } }); builer.setNegativeButton("取消", new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { Toast.makeText(getApplicationContext(), "取消下载", Toast.LENGTH_SHORT).show(); } }); AlertDialog dialog = builer.create(); dialog.show(); } private void downLoadApk() { final ProgressDialog pd = new ProgressDialog(MainActivity.this); pd.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL); pd.setMessage("正在下载更新"); pd.show(); new Thread() { public void run() { try { File file = DownLoadManager.getFileFromServer(versionInfo.getApk(), pd); sleep(3000); installApk(file); pd.dismiss();//结束掉进度条对话框 } catch (Exception e) { e.printStackTrace(); } }; }.start(); } private void installApk(File file) { Intent intent = new Intent(); //执行动作 intent.setAction(Intent.ACTION_VIEW); //执行的数据类型 intent.setDataAndType(Uri.fromFile(file), "application/vnd.android.package-archive"); startActivity(intent); } }
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent" android:layout_height="match_parent" android:orientation="vertical" > <TextView android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="当前版本:1.0" android:textSize="50sp" /> <Button android:id="@+id/checkUpdate" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="检查更新" /> </LinearLayout>
需要用到volley的jar包,下载地址:
http://pan.baidu.com/s/1c0HiMnY
3.测试
在AndroidManifest.xml中修改android:versionName为2.0,然后修改布局文件的TextView为"当前版本:2.0",打包android工程,把apk放在UpdateServer/WebRoot下。这个就是新版的apk了。
在AndroidManifest.xml中修改android:versionName为1.0,然后修改布局文件的TextView为"当前版本:1.0",打包android工程,把apk运行在模拟器上。