public class UpdateManager {
private Context mContext;
//提示语
private String updateMsg = "有最新的软件包,请更新系统";
//返回的安装包url
private String apkUrl = "";
private Dialog noticeDialog;
private Dialog downloadDialog;
/* 下载包安装路径 */
private static final String savePath =
Environment.getExternalStorageDirectory().getPath() + "/ziruk/";
private static final String saveFileName = savePath + "UpdateZirukRelease.apk";
/* 进度条与通知ui刷新的handler和msg常量 */
private ProgressBar mProgress;
private static final int DOWN_UPDATE = 1;
private static final int DOWN_OVER = 2;
private int progress;
private Thread downLoadThread;
private boolean interceptFlag = false;
private Handler mHandler = new Handler(){
public void handleMessage(Message msg) {
switch (msg.what) {
case DOWN_UPDATE:
mProgress.setProgress(progress);
break;
case DOWN_OVER:
installApk();
break;
default:
break;
}
};
};
public UpdateManager(Context context) {
this.mContext = context;
}
//外部接口让主Activity调用
public void checkUpdateInfo(String url){
String URLRoot = HttpBaseCls.GetURLRoot(mContext);
this.apkUrl = URLRoot + url;
showNoticeDialog();
}
private void showNoticeDialog(){
Builder builder = new Builder(mContext);
builder.setTitle("软件版本更新");
builder.setMessage(updateMsg);
builder.setCancelable(false);
builder.setPositiveButton("下载", new OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
dialog.dismiss();
showDownloadDialog();
}
});
// builder.setNegativeButton("以后再说", new OnClickListener() {
// @Override
// public void onClick(DialogInterface dialog, int which) {
// dialog.dismiss();
// }
// });
noticeDialog = builder.create();
noticeDialog.show();
}
private void showDownloadDialog(){
Builder builder = new Builder(mContext);
builder.setTitle("软件版本更新");
builder.setCancelable(false);
final LayoutInflater inflater = LayoutInflater.from(mContext);
View v = inflater.inflate(R.layout.progress, null);
mProgress = (ProgressBar)v.findViewById(R.id.progress);
builder.setView(v);
// builder.setNegativeButton("取消", new OnClickListener() {
// @Override
// public void onClick(DialogInterface dialog, int which) {
// dialog.dismiss();
// interceptFlag = true;
// }
// });
downloadDialog = builder.create();
downloadDialog.show();
downloadApk();
}
private Runnable mdownApkRunnable = new Runnable() {
@Override
public void run() {
try {
URL url = new URL(apkUrl);
HttpURLConnection conn = (HttpURLConnection)url.openConnection();
conn.connect();
int length = conn.getContentLength();
InputStream is = conn.getInputStream();
File file = new File(savePath);
if(!file.exists()){
file.mkdir();
}
String apkFile = saveFileName;
File ApkFile = new File(apkFile);
if(!file.exists()){
file.createNewFile();
}
FileOutputStream fos = new FileOutputStream(ApkFile);
int count = 0;
byte buf[] = new byte[1024];
do{
int numread = is.read(buf);
count += numread;
progress =(int)(((float)count / length) * 100);
//更新进度
mHandler.sendEmptyMessage(DOWN_UPDATE);
if(numread <= 0){
//下载完成通知安装
mHandler.sendEmptyMessage(DOWN_OVER);
break;
}
fos.write(buf,0,numread);
}while(!interceptFlag);//点击取消就停止下载.
fos.close();
is.close();
} catch (MalformedURLException e) {
Log.e("UpdateManager", e.getMessage());
} catch(IOException e){
Log.e("UpdateManager", e.getMessage());
}
}
};
/**
* 下载apk
* @param url
*/
private void downloadApk(){
downLoadThread = new Thread(mdownApkRunnable);
downLoadThread.start();
}
/**
* 安装apk
* @param url
*/
private void installApk(){
File apkfile = new File(saveFileName);
if (!apkfile.exists()) {
return;
}
Intent i = new Intent(Intent.ACTION_VIEW);
i.setDataAndType(Uri.parse("file://" + apkfile.toString()), "application/vnd.android.package-archive");
mContext.startActivity(i);
}
}
Android 最简单的更新机制 UpdateManager
最新推荐文章于 2025-05-06 15:53:04 发布