如何實現Gameloft數據包下載功能 - Android 台灣中文網

public class WelcomeActivity extends Activity implements Runnable {
private static final String TAG = WelcomeActivity.class.getSimpleName();
private final int HANDLER_OF_SUCCESS = 0;
private final int HANDLER_OF_DOWNLOAD = 1;
private final int HANDLER_OF_DOWNLOAD_END = 2;
private int file_size = 0;
private int down_size = 0;
private Thread thread;
private DownloadHelper db;
private ProgressBar progressBar1;
private TextView textView1;
private File download_path = null;
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.welcome);
if (Integer.valueOf(android.os.Build.VERSION.SDK) > 7) {
download_path = Environment.getExternalStoragePublicDirectory("/mctw");
} else {
download_path = new File("/sdcard/mctw");
}
download_path.mkdirs();
progressBar1 = (ProgressBar) findViewById(R.id.progressBar1);
textView1 = (TextView) findViewById(R.id.textView1);
thread = new Thread(this);
thread.start();
}
@Override
public void run() {
// TODO Auto-generated method stub
String download_link = "http://xx.xx.xx.xx/app/data/xxx.zip";
File download_file = new File(download_path, "xxx.zip");
try {
URL download_url = new URL(download_link);
URLConnection conn = download_url.openConnection();
conn.connect();
InputStream is = conn.getInputStream();
file_size = conn.getContentLength();
FileOutputStream fos = new FileOutputStream(download_file);
byte buf[] = new byte[1024];
down_size = 0;
sendMsg(HANDLER_OF_DOWNLOAD);
do {
int numread = is.read(buf);
if (numread == -1) {
break;
}
fos.write(buf, 0, numread);
down_size += numread;
sendMsg(HANDLER_OF_DOWNLOAD);
} while (true);
sendMsg(HANDLER_OF_DOWNLOAD_END);
is.close();
} catch (MalformedURLException e) {
// TODO Auto-generated catch block
Log.e(TAG, e.getMessage());
} catch (IOException e) {
// TODO Auto-generated catch block
Log.e(TAG, e.getMessage());
}
}
private void sendMsg(int flag) {
Message msg = new Message();
msg.what = flag;
handler.sendMessage(msg);
}
private Handler handler = new Handler() {
@Override
public void handleMessage(Message msg) {
Bundle bundle = msg.getData();
switch (msg.what) {
case HANDLER_OF_SUCCESS:
break;
case HANDLER_OF_DOWNLOAD:
double x = (double) down_size;
double y = (double) file_size;
double person = (x / y) * 100;
int personInt = (int) person;
if (progressBar1 != null) {
progressBar1.setProgress(personInt);
textView1.setText(getString(R.string.app_download) + Integer.toString(personInt) + "%");
}
break;
case HANDLER_OF_DOWNLOAD_END:
textView1.setText(getString(R.string.app_compress));
File download_file = new File(download_path, "xxx.zip");
File sqlite_file = new File(download_path, "xxx.db");
try {
FileInputStream fin = new FileInputStream(download_file);
ZipInputStream zin = new ZipInputStream(new BufferedInputStream(fin));
ZipEntry entry;
while ((entry = zin.getNextEntry()) != null) {
int size;
byte[] buffer = new byte[2048];
FileOutputStream fos = new FileOutputStream(sqlite_file);
BufferedOutputStream bos = new BufferedOutputStream(fos, buffer.length);
while ((size = zin.read(buffer, 0, buffer.length)) != -1) {
bos.write(buffer, 0, size);
}
bos.flush();
bos.close();
}
zin.close();
fin.close();
} catch (FileNotFoundException e) {
// TODO Auto-generated catch block
Log.e(TAG, e.getMessage());
} catch (IOException e) {
// TODO Auto-generated catch block
Log.e(TAG, e.getMessage());
}
download_file.delete();
textView1.setText(getString(R.string.app_welcome));
startActivity(new Intent().setClass(WelcomeActivity.this, MenuActivity.class));
finish();
break;
}
}
};
}

複製代碼

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
>
<FrameLayout android:id="@+id/frameLayout1" android:layout_width="match_parent" android:layout_height="match_parent">
<LinearLayout android:id="@+id/linearLayout1" android:layout_height="wrap_content" android:layout_width="wrap_content" android:layout_gravity="center" android:orientation="vertical">
<ProgressBar android:layout_height="wrap_content" style="?android:attr/progressBarStyleHorizontal" android:id="@+id/progressBar1" android:layout_width="match_parent" android:max="100"></ProgressBar>
<TextView android:layout_height="wrap_content" android:layout_width="wrap_content" android:textAppearance="?android:attr/textAppearanceLarge" android:id="@+id/textView1" android:layout_gravity="center" android:text="@string/app_download"></TextView>
</LinearLayout>
</FrameLayout>
</LinearLayout>

複製代碼

protected String doInBackground(String... params) {
try {
URL url = new URL( "http://10.0.2.2/Image666.zip" );
HttpURLConnection connect = (HttpURLConnection) url.openConnection();
connect.setDoInput( true );
connect.setDoOutput( true );
connect.setRequestMethod( "POST" );
if ( connect.getResponseCode() == 200 ) {
File outFile = new File( "mnt/sdcard/Image666.zip" );
out = new FileOutputStream( outFile );
InputStream in = connect.getInputStream();
copy( in, out, 32 );
in.close();
out.close();
}
connect.disconnect();
FileInputStream fin = new FileInputStream("mnt/sdcard/Image666.zip");
ZipInputStream zis = new ZipInputStream(new BufferedInputStream(fin));
try {
ZipEntry ze;
while ((ze = zis.getNextEntry()) != null) {
byte[] buffer = new byte[1024];
BufferedOutputStream bos = new BufferedOutputStream(out, buffer.length);
int count;
while ((count = zis.read(buffer,0,buffer.length)) != -1) {
bos.write(buffer, 0, count);
}
bos.flush();
bos.close();
}
} finally {
zis.close();
}
} catch ( MalformedURLException e ) {
e.printStackTrace();
} catch ( IOException e ) {
// TODO Auto-generated catch block
e.printStackTrace();
}

複製代碼

FileInputStream fin = new FileInputStream("mnt/sdcard/Image666.zip");

複製代碼

FileInputStream fin = new FileInputStream(new File(download_path, "Image666.zip");

複製代碼