Apk升级功能
2016-02-22 10:59
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总的思想：得到服务器上的版本号 ，与本地的apk的Manifest中版本号对比，若是服务器上的版本号比较大，则升级。
1.定义ApkInfo类来封装需要的信息。
2.Manifest文件中的版本信息
3.得到apk版本信息的工具类，其中封装从服务器中得到apk版本信息的方法。
4.对比本地apk的版本与服务器中apk的版本，若是服务器中版本大，则弹出对话框让用户选择是否升级
其中，dialog为：
5.在对话框中，选择不升级，则设置变量为1。选择升级，则开始下载服务器上的apk。
6.下载完后，进行升级
1.定义ApkInfo类来封装需要的信息。
public class ApkInfo {
private String name;
private String vercode;
private String vername;
private String apkaddr;
public ApkInfo(String name, String vercode, String vername, String apkaddr) {
super();
this.name = name;
this.vercode = vercode;
this.vername = vername;
this.apkaddr = apkaddr;
}
public ApkInfo() {
super();
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getVercode() {
return vercode;
}
public void setVercode(String vercode) {
this.vercode = vercode;
}
public String getVername() {
return vername;
}
public void setVername(String vername) {
this.vername = vername;
}
public String getApkaddr() {
return apkaddr;
}
public void setApkaddr(String apkaddr) {
this.apkaddr = apkaddr;
}
}2.Manifest文件中的版本信息
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.myfirstapp"
android:versionCode="1"
android:versionName="1.0" >3.得到apk版本信息的工具类，其中封装从服务器中得到apk版本信息的方法。
public class UpdateTools {
/**
* 获取相应网址的内容
*
* @param url
* @return
* @throws Exception
*/
public static String getContent(String url) throws Exception {
StringBuilder sb = new StringBuilder();
HttpClient client = new DefaultHttpClient();
HttpResponse response = client.execute(new HttpGet(url));
HttpEntity entity = response.getEntity();
if (response.getStatusLine().getStatusCode() != HttpStatus.SC_OK) {
return sb.toString();
}
if (entity != null) {
BufferedReader reader = new BufferedReader(new InputStreamReader(
entity.getContent(), "UTF-8"), 8192);
String line = null;
while ((line = reader.readLine()) != null) {
sb.append(line + "\n");
}
reader.close();
} else {
}
return sb.toString();
}
public static final String UPDATE_VERJSON = "http://xxx/apks/config.html";
public static ApkInfo getServerVerCode() {
ApkInfo apkInfo=new ApkInfo();
try {
String verjson = getContent(UPDATE_VERJSON);
JSONArray array = new JSONArray(verjson);
if (array.length() > 0) {
JSONObject obj = array.getJSONObject(0);
try {
apkInfo.setName(obj.getString("apkname"));
apkInfo.setVername(obj.getString("verName"));
apkInfo.setVercode(obj.getString("verCode"));
apkInfo.setApkaddr(obj.getString("verUrl")+"/"+obj.getString("apkname"));
return apkInfo;
} catch (Exception e) {
e.printStackTrace();
return apkInfo;
}
}
} catch (Exception e) {
e.printStackTrace();
return apkInfo;
}
return apkInfo;
}
}4.对比本地apk的版本与服务器中apk的版本，若是服务器中版本大，则弹出对话框让用户选择是否升级
new Thread(new Runnable() {
@Override
public void run() {
// TODO Auto-generated method stub
ApkInfo apkInfo = UpdateTools.getServerVerCode();
if (apkInfo != null) {
Message message = updatehandler.obtainMessage();
message.obj = apkInfo;
message.what = 1;
updatehandler.sendMessage(message);
}
}
}).start();private Handler updatehandler = new Handler() {
public void handleMessage(android.os.Message msg) {
switch (msg.what) {
case 1:
ApkInfo apkInfo = (ApkInfo) msg.obj;
if (apkInfo.getApkaddr() != null
&& apkInfo.getVercode() != null
&& apkInfo.getVername() != null) {
int i = -1;
try {
i = Integer.parseInt(apkInfo.getVercode());
} catch (Exception e) {
// TODO: handle exception
}
if (i != -1 && i > getVerCode(getApplicationContext())) {
if (mUpdatedialog != null && !mUpdatedialog.isShowing()) {
mUpdatedialog
.setMessage(getString(R.string.pengb_update_updatemessage1)
+ " V"
+ apkInfo.getVername()
+ ","
+ getString(R.string.pengb_update_updatemessage2));
mUpdatedialog.show();
mapkInfo = apkInfo;
}
}
}
break;
case 4:
if (mProgressDialog!=null&&mProgressDialog.isShowing()) {
mProgressDialog.dismiss();
}
Toast.makeText(getApplicationContext(), getString(R.string.pengb_update_downerror), 1000).show();
break;
case 3:
mProgressDialog.setProgress(msg.arg1);
break;
default:
break;
}
};
};public int getVerCode(Context context) {
int i = 0;
try {
i = context.getPackageManager().getPackageInfo(
"com.example.myfirstapp", 0).versionCode;
} catch (NameNotFoundException e) {
Log.e(TAG, e.getMessage());
}
return i;
}
public String getVerName(Context context) {
try {
return context.getPackageManager().getPackageInfo(
"com.example.myfirstapp", 0).versionName;
} catch (NameNotFoundException e) {
Log.e(TAG, e.getMessage());
}
return null;
}其中，dialog为：
updateBuilder = new AlertDialog.Builder(this);
updateBuilder.setTitle(getString(R.string.pengb_update_update));
updateBuilder.setPositiveButton(getString(R.string.pengb_update_yes),
new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
// TODO Auto-generated method stub
if (!mProgressDialog.isShowing()) {
mProgressDialog.show();
}
if (mapkInfo!=null&&mapkInfo.getApkaddr()!=null) {
downFile(mapkInfo.getApkaddr().toString());
}
}
});
updateBuilder.setNegativeButton(getString(R.string.pengb_update_no),
new OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
// TODO Auto-generated method stub
Settings.System.putInt(getContentResolver(), "mm_update_pb", 1);
dialog.dismiss();
}
});
updateBuilder.setCancelable(false);
mUpdatedialog = updateBuilder.create();
mProgressDialog = new ProgressDialog(this);
mProgressDialog.setCancelable(false);
mProgressDialog.setTitle(getString(R.string.pengb_update_downing));
mProgressDialog
.setMessage(getString(R.string.pengb_update_downingmessage));
mProgressDialog.setButton(getString(R.string.pengb_update_cancel),
new OnClickListener() {
@Override
public void onClick(DialogInterface arg0, int arg1) {
// TODO Auto-generated method stub
update=false;
Settings.System.putInt(getContentResolver(), "mm_update_pb", 1);
arg0.dismiss();
}
});
mProgressDialog.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL);5.在对话框中，选择不升级，则设置变量为1。选择升级，则开始下载服务器上的apk。
public void downFile(final String url) {
new Thread() {
public void run() {
HttpClient client = new DefaultHttpClient();
HttpGet get = new HttpGet(url);
HttpResponse response;
try {
response = client.execute(get);
if (response.getStatusLine().getStatusCode() != HttpStatus.SC_OK) {
Message message = handler.obtainMessage();
message.what = 4;
updatehandler.sendMessage(message);
return ;
}else {
HttpEntity entity = response.getEntity();
final int length = (int)(entity.getContentLength()/1024);
updatehandler.post(new Runnable() {
@Override
public void run() {
// TODO Auto-generated method stub
mProgressDialog.setMax((int) length);
}
});
InputStream is = entity.getContent();
FileOutputStream fileOutputStream = null;
if (is != null) {
File file = new File("/var", "firstapp.apk");
fileOutputStream = new FileOutputStream(file);
byte[] buf = new byte[1024];
int ch = -1;
int count = 0;
while ((ch = is.read(buf)) != -1) {
fileOutputStream.write(buf, 0, ch);
count += ch;
Message message1 = updatehandler.obtainMessage();
message1.what = 3;
message1.arg1 = count/1024;
updatehandler.sendMessage(message1);
}
}
fileOutputStream.flush();
if (fileOutputStream != null) {
fileOutputStream.close();
}
is.close();
updatehandler.post(new Runnable() {
@Override
public void run() {
// TODO Auto-generated method stub
if (mProgressDialog != null
&& mProgressDialog.isShowing()) {
mProgressDialog.dismiss();
}
int i=Settings.System.getInt(getContentResolver(), "mm_update_pb", 0);
if (i==0) {
update();
}
}
});
}
} catch (ClientProtocolException e) {
Message message = handler.obtainMessage();
message.what = 4;
updatehandler.sendMessage(message);
e.printStackTrace();
} catch (IOException e) {
Message message = handler.obtainMessage();
message.what = 4;
updatehandler.sendMessage(message);
e.printStackTrace();
}
}
}.start();
}6.下载完后，进行升级
public void update() {
try {
String command = "chmod 777 " + "/var/firstapp.apk";
Runtime runtime = Runtime.getRuntime();
runtime.exec(command);
} catch (IOException e) {
Log.d(TAG, "chmod 666 fail!");
e.printStackTrace();
}
Intent intent = new Intent(Intent.ACTION_VIEW);
intent.setDataAndType(
Uri.fromFile(new File("/var/sivitonlocalmm.apk")),
"application/vnd.android.package-archive");
startActivity(intent);
}
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