ファイルをダウンロードできる Android アプリを作成しました。サービスをサポートするためにGroundy ライブラリ
を使用しました。そして、これからNotiThreadを作成しました(ただし、要件をサポートするために編集しました)..これ
が私のアクティビティコードです...
public class PacksActivity extends Activity {
private Context context;
private RelativeLayout download;
private ProgressBar progressBar;
private NotiThread notification;
private String url;
@Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
setContentView(R.layout.packs);
context = this;
url = getIntent().getStringExtra("URL");
progressBar = (ProgressBar)findViewById(R.id.progress);
progressBar.setIndeterminate(false);
progressBar.setMax(100);
download = (RelativeLayout) findViewById(R.id.label_circle);
download.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View arg0) {
// TODO Auto-generated method stub
File dest = new File(context.getFilesDir(), new File(url).getName());
if(!dest.exists()){
progressBar.setVisibility(View.VISIBLE);
notification = new NotiThread(context);
notification.run();
Bundle extras = new Bundler().add(DownloadTemplate.PARAM_URL, url).build();
Groundy.create(context, DownloadTemplate.class)
.receiver(mReceiver)
.params(extras)
.queue();
}
}
});
}
private ResultReceiver mReceiver = new ResultReceiver(new Handler()) {
@Override
protected void onReceiveResult(int resultCode, Bundle resultData) {
super.onReceiveResult(resultCode, resultData);
switch (resultCode) {
case Groundy.STATUS_PROGRESS:
int progress = resultData.getInt(Groundy.KEY_PROGRESS);
progressBar.setProgress(progress);
if((progress % 10) == 0)notification.progressUpdate(progress);
break;
case Groundy.STATUS_FINISHED:
Toast.makeText(context, "Success Download file", Toast.LENGTH_LONG);
progressBar.setVisibility(View.GONE);
notification.completed();
break;
case Groundy.STATUS_ERROR:
Toast.makeText(context, resultData.getString(Groundy.KEY_ERROR), Toast.LENGTH_LONG).show();
progressBar.setVisibility(View.GONE);
notification.completed();
break;
}
}
};
}
これは私の NotiThread クラスです
public class NotiThread extends Thread {
private NotificationManager mNoti = null;
private final Context mContext;
private final int mUnique;
private Notification noti;
public NotiThread(Context context) {
super("NotiThread");
mContext = context;
mNoti = (NotificationManager) context.getSystemService(Context.NOTIFICATION_SERVICE);
mUnique = 1;
}
@Override
public void run() {
Process.setThreadPriority(Process.THREAD_PRIORITY_BACKGROUND);
noti = new Notification(R.drawable.icon1024, "title", System.currentTimeMillis());
noti.flags |= Notification.FLAG_ONGOING_EVENT;
RemoteViews contentView = new RemoteViews(mContext.getPackageName(), R.layout.custom_notification);
contentView.setTextViewText(R.id.noti_title, "title");
contentView.setProgressBar(R.id.noti_progress, 100, 0, false);
contentView.setTextViewText(R.id.noti_text, "0%");
noti.contentView = contentView;
noti.contentIntent = PendingIntent.getActivity(mContext, 0, new Intent(mContext, mContext.getClass()), PendingIntent.FLAG_ONE_SHOT);
mNoti.notify(mUnique, noti);
}
public void progressUpdate(int percentageComplete) {
noti.contentView.setProgressBar(R.id.noti_progress, 100, percentageComplete, false);
noti.contentView.setTextViewText(R.id.noti_text, percentageComplete + "%");
mNoti.notify(mUnique, noti);
}
public void completed() {
mNoti.cancel(mUnique);
}
}
これが GroundyTask クラスです
public class DownloadTemplate extends GroundyTask {
public static final String PARAM_URL = "com.app.service.PARAM_URL";
@Override
protected boolean doInBackground() {
try {
String url = getParameters().getString(PARAM_URL);
File dest = new File(getContext().getFilesDir(), new File(url).getName());
DownloadUtils.downloadFile(getContext(), url, dest, DownloadUtils.getDownloadListenerForTask(this));
return true;
} catch (Exception e) {
return false;
}
}
}
アクティビティに入るときに現在実行中のサービスと通知から ProgressBar を更新するアクティビティを再開する方法を教えてください。