package com.yizhao.activity;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.net.HttpURLConnection;
import java.net.URL;
import java.util.Map;
import com.yizhao.core.ATManager;
import com.yizhao.core.AsyncWorkHandler;
import com.yizhao.core.Const;
import com.yizhao.util.FileUtils;
import android.app.Activity;
import android.app.AlertDialog;
import android.app.Dialog;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.net.Uri;
import android.os.Bundle;
import android.os.Message;
import android.view.KeyEvent;
import android.view.View;
import android.widget.ProgressBar;
import android.widget.TextView;
import android.widget.Toast;
public class DownloadActivity extends Activity{
private AsyncWorkHandler handler_download; //从属第二步-下载更新APK文件
private FileUtils fu;
private File downloadFile;//APK文件
private InputStream inputStream = null;
private FileOutputStream outputStream = null;
private HttpURLConnection connection = null;
private String apk_name;
private Intent intent;
private String apk_url;
private int size = 1;//APK更新包的大小
private long hasRead = 0;//APK更新已读取多少字节
private int index = 0;//APK更新进度
private Message message = null;//handle消息，公用
private boolean flagB = true;
private ProgressBar progressBar = null;
public TextView appstart_view;
private Context _context;
private Intent intent_appstart;
private boolean sdCard;
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.download);
intent = this.getIntent();
_context = this;
fu = new FileUtils();
appstart_view = (TextView)findViewById(R.id.appstart_text);
progressBar = (ProgressBar)findViewById(R.id.downloadBar);
intent_appstart = new Intent(this,AppStartActivity.class);
//检查是否有SD卡
sdCard = android.os.Environment.getExternalStorageState().equals(android.os.Environment.MEDIA_MOUNTED);
if(!sdCard){
startActivityForResult(intent_appstart, 1);//1代表下载动作完成
//handler_ir_check.doWork(null);
Toast.makeText(_context, R.string.download_nosdcard, Toast.LENGTH_SHORT).show();
finish();
}else{
apk_name = intent.getStringExtra("apk_name");
apk_url = intent.getStringExtra("apk_url");
initHandler();
handler_download.doWork(null);
}
}
private void initHandler(){
//异步下载APK文件
handler_download = new AsyncWorkHandler(){
@Override
public Object excute(Map<String,String> param){
try{
File dir = fu.createSDDir(Const.SD_DIR);//创建目录
downloadFile = fu.createSDFile(dir.getPath()+"/"+apk_name);//创建新文件
URL url = new URL(apk_url);
connection = (HttpURLConnection)url.openConnection();//开启HTTP连接
connection.setConnectTimeout(Const.TIMEOUT_15);//设置15秒超时
size = connection.getContentLength();//获取内容长度
inputStream = connection.getInputStream();//得到输入流
outputStream = new FileOutputStream(downloadFile);//文件输出流
byte[] buffer = new byte[Const.BYTE_SIZE_INT];
do{
int numread = inputStream.read(buffer);
if(numread <= 0) {
break;
}
outputStream.write(buffer, 0, numread);
hasRead+=numread;
index = (int)(hasRead*100)/size;
message = new Message();
message.what = 1;
sendMessage(message);
}while(flagB);
close();
}catch (Exception e){//下载异常，发送消息
e.printStackTrace();
message = new Message();
message.what = -1;
sendMessage(message);
}finally{
close();
}
return null;
};
@Override
public void handleMessage(Message msg){
if(msg.what == 1){//下载中,下载正常
progressBar.setProgress(index);
if (index >= 99 && flagB) {
appstart_view.setText(R.string.setup_ready);
progressBar.setVisibility(View.GONE);
if(downloadFile!=null){
showDialog(Const.DIALOG_YES_NO_MESSAGE);
}else{
Toast.makeText(_context, R.string.download_retry, Toast.LENGTH_SHORT).show();//下载文件有错误
setResult(RESULT_FIRST_USER,intent_appstart);
finish();
}
}else{
appstart_view.setText("下载中,请稍候,已下载 "+index+"%");
}
}else if(msg.what == -1){//文件下载异常
flagB = false;
if(downloadFile!=null){
fu.delFile(downloadFile.getPath());//删除临时文件
}
Toast.makeText(_context, R.string.download_retry, Toast.LENGTH_SHORT).show();
setResult(RESULT_FIRST_USER,intent_appstart);
finish();
}
}
};
}
private void close(){
if(connection!=null){//需要关闭,否则有可能造成网络阻塞
connection.disconnect();
}
if(inputStream!=null){//输入流一定要关闭
try {
inputStream.close();
} catch (IOException e) {
inputStream = null;
e.printStackTrace();
}
}
if(outputStream!=null){//输出流一定要关闭
try {
outputStream.close();
} catch (IOException e) {
outputStream = null;
e.printStackTrace();
}
}
}
/**
* 打开安装包文件
* @param f
*/
public void setup(){
Intent intent = new Intent();
intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
intent.setAction(android.content.Intent.ACTION_VIEW);
String type = "application/vnd.android.package-archive";
intent.setDataAndType(Uri.fromFile(downloadFile), type);
startActivity(intent);
ATManager.exitClient(_context);
finish();
}
@Override
protected Dialog onCreateDialog(int id) {
switch (id) {
case Const.DIALOG_YES_NO_MESSAGE:
return new AlertDialog.Builder(_context)
.setTitle(R.string.download_finish)
.setIcon(R.drawable.icon)
.setMessage(R.string.setup_ask)
.setPositiveButton("安装",
new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog,
int which) {
dialog.dismiss();
setup();
}
})
.setNegativeButton("取消",
new DialogInterface.OnClickListener(){
@Override
public void onClick(DialogInterface dialog,
int which) {
dialog.cancel();
setResult(RESULT_FIRST_USER,intent_appstart);
finish();
}
}).create();
}
return null;
}
/**
* 监听返回键事件
*/
@Override
public boolean onKeyDown(int keyCode, KeyEvent event){
if(keyCode == KeyEvent.KEYCODE_BACK && event.getRepeatCount()==0){
close();
flagB = false;
setResult(RESULT_FIRST_USER,intent_appstart);
}
return super.onKeyDown(keyCode, event);
}
}