i have a button that on click is loading rss feed.i want to load a progress bar until my list opens.i have created a progressbar,it works,but as i press the return button to return to the main menu the progress bar appears again and it doesnt stop(and not even let me see my menu).this is my code
ProgressBar myProgressBar;
int myProgress = 0;
/** Called when the activity is first created. */
#Override
public void onCreate(Bundle icicle) {
super.onCreate(icicle);
setContentView(R.layout.main1);
Button nea = (Button) findViewById(R.id.nea);
nea.setOnClickListener(new View.OnClickListener() {
public void onClick (View view) {
setContentView(R.layout.bar);
myProgressBar=(ProgressBar)findViewById(R.id.bar);
new Thread(myThread).start();
Intent myIntent = new Intent(view.getContext(), nea.class);
startActivityForResult(myIntent, 0);
}
});
}
and then,out of the onCreate
private Runnable myThread = new Runnable(){
#Override
public void run() {
// TODO Auto-generated method stub
while (myProgress<100){
try{
myHandle.sendMessage(myHandle.obtainMessage());
Thread.sleep(1000);
}
catch(Throwable t){
}
}
}
Handler myHandle = new Handler(){
public void handleMessage(Message msg) {
// TODO Auto-generated method stub
myProgress++;
myProgressBar.setProgress(myProgress);
}
};
};
Your Activity isn't getting recreated when you return from the startActivityForResult Activity you started, so you contentView is stuck as R.layout.bar .
Try overriding the onActivityResult(int requestCode, int resultCode, Intent data) method and
calling setContentView(R.layout.main1); inside of it to reset your view. You may need to add the listener to the button again.
Related
i'm new to android,this maybe simple question but i cant able to find the answer for it,i'm using tabactivity while changing the activities the bottom tab's are missing so i
used below code to hold the tab by changing the view,so it works fine
public void replaceContentView(String id, Intent newIntent) {
try {
#SuppressWarnings("deprecation")
View view = getLocalActivityManager().startActivity(id,
newIntent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP))
.getDecorView();
this.setContentView(view);
} catch (Exception e) {
e.printStackTrace();
}
}
Actually my problem is i want to select something from 2nd activity to 1st ActivityGroup,in the 2nd activity i have one button called done
Here is my 2nd activity
public class Woosuite_Twiter_Feed_list extends Activity implements
OnItemClickListener {
#Override
public void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
setContentView(R.layout.woosuite_twitlist);
Button done = (Button) findViewById(R.id.btn1);
done.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
// TODO Auto-generated method stub
Intent i = new Intent(v.getContext(), Woosuite_Feed.class);
i.setClass(getParent(), Woosuite_Feed.class);
Woosuite_Feed feed = (Woosuite_Feed) getParent();
feed.replaceContentView("one", i);
}
});
while clicking done button in 2nd activity then first activitygroup asyncTask class is called,in that i'm getting
Android: “BadTokenException: Unable to add window; is your activity running?
i dont know how to solve this,please provide some solution.
here is my 1st ActivityGroup oncreate
public class Woosuite_Feed extends ActivityGroup implements OnClickListener
{
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.woosuite_feed);
LinkedFeeds feeds = new LinkedFeeds();
feeds.execute("");
}
Here is my 1st ActivityGroup AsyncTask
public class LinkedFeeds extends AsyncTask<String, Void, String> {
public ProgressDialog dialog;
#Override
protected void onPreExecute() {
// TODO Auto-generated method stub
if(!isFinishing()){
dialog = new ProgressDialog(Woosuite_Feed.this);
dialog.setMessage("Loading...");
dialog.setCancelable(false);
dialog.show();
}
super.onPreExecute();
}
#Override
protected String doInBackground(String... params) {
// TODO Auto-generated method stub
return null;
}
#Override
protected void onPostExecute(String result) {
// TODO Auto-generated method stub
super.onPostExecute(result);
dialog.dismiss();
}
}
Thanks
I'm making an activity where I'm planning to display a progress bar and move to a second activity after five seconds. I used Thread.sleep to do this.
Here is the code for the activity with the spinner.
public class WaitScreen extends Activity {
#Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
setContentView(R.layout.waitscreen);
}
#Override
public void onStart() {
// TODO Auto-generated method stub
super.onStart();
try{
for(int i=0;i<5;i++){
Thread.sleep(1000);
}
Toast.makeText(getApplicationContext(), "Spinner complete!", Toast.LENGTH_LONG).show();
}
catch(InterruptedException e){
}
Intent i = new Intent("emergency.app.NEWACTIVITY");
startActivity(i);
}
}
My main activity only has a button that leads to this page on being clicked. Problem is, it displays the main activity for five seconds, then this activity very briefly and then the third activity. How do I make the thread start after WaitScreen is fully loaded? As you can see, I tried using the onStart method to do the trick. Or if you could tell me another way to introduce a five second delay, that would be helpful too!
Use a Handler to post a Runnable, like so:
public class WaitScreen extends Activity {
private Runnable task = new Runnable() {
public void run() {
Toast.makeText(getApplicationContext(), "Spinner complete!", Toast.LENGTH_LONG).show();
Intent i = new Intent("emergency.app.NEWACTIVITY");
startActivity(i);
}
};
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.waitscreen);
Handler handler = new Handler();
handler.postDelayed(task, 5000);
}
}
The Runnable task will execute after 5 seconds.
http://developer.android.com/reference/android/os/Handler.html
I'm having trouble with something that seems like it should be very simple. I have a frame layout with 2 Buttons (one on top of the other naturally). When I click on the top button, it automatically takes me to a website, and the button beneath it replaces it to be the visible one. I want to set up an automatic refresh so that a few seconds later, the button that was originally on top becomes on top again. Thank you for any help you can give! Here is the Java, and with my attempt at creating an automatic refresh:
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
final ImageButton bJava1= (ImageButton)findViewById(R.id.button1);
final ImageButton bJava2 = (ImageButton)findViewById(R.id.button2);
final WebView webview1= (WebView)this.findViewById(R.id.webView1);
final MediaPlayer sound= MediaPlayer.create(Youtube.this, R.raw.soundclip1);
final Handler handler = new Handler();
Refresh = new Runnable() {
public void run() {
bJava1.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
// TODO Auto-generated method stub
webview1.loadUrl("http://www.google.com");
if(sound.isPlaying()){
bJava1.setVisibility(ImageButton.VISIBLE);
bJava2.setVisibility(ImageButton.GONE);
}else {
sound.start();
bJava1.setVisibility(ImageButton.GONE);
bJava2.setVisibility(ImageButton.VISIBLE);
}
}
});
handler.postDelayed(Refresh, 10000);
}
};
handler.post(Refresh);
Problem is, that your Refresh runnable only registers a onClickListener on the first button and calls itself every 10 seconds, you should register the onClickListener only once outside the Runnable and only call the if block within your Refresh.run() Method:
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
final ImageButton bJava1= (ImageButton)findViewById(R.id.button1);
final ImageButton bJava2 = (ImageButton)findViewById(R.id.button2);
final WebView webview1= (WebView)this.findViewById(R.id.webView1);
final MediaPlayer sound= MediaPlayer.create(Youtube.this, R.raw.soundclip1);
final Handler handler = new Handler();
Refresh = new Runnable() {
public void run() {
if(sound.isPlaying()){
bJava1.setVisibility(ImageButton.VISIBLE);
bJava2.setVisibility(ImageButton.GONE);
}else {
sound.start();
bJava1.setVisibility(ImageButton.GONE);
bJava2.setVisibility(ImageButton.VISIBLE);
}
}
};
bJava1.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
// TODO Auto-generated method stub
webview1.loadUrl("http://www.google.com");
handler.postDelayed(Refresh, 10000);
}
});
I am developing an android application in which I have passed a string from one activity to another activity, after getting it from a edit text box by clicking on "OK" button.The string is a url which gives a rss feed.So it takes a little bit time to load it .I want to show a progress bar to keep the interface interactive.How can achieve a progress bar or a progress dialog on that same button click?
My code Snippet for activity is
EditText Urlis=(EditText)findViewById(R.id.entry);
final Button button = (Button) findViewById(R.id.ok);
final Intent i=new Intent(this , RSSReder.class);
final String choice=Urlis.getText().toString();
i.putExtra("key", choice);
button.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
startActivity(i);
}
});
}
}
some part of the code of next activity is
public class RSSReder extends Activity implements OnItemClickListener
{
public String RSSFEEDOFCHOICE;
public final String tag = "RSSReader";
private RSSFed feed = null;
/** Called when the activity is first created. */
public void onCreate(Bundle abc) {
super.onCreate(abc);
setContentView(R.layout.next1);
Intent i = getIntent();
RSSFEEDOFCHOICE =i.getStringExtra("key");
// go get our feed!
feed = getFeed(RSSFEEDOFCHOICE);
// display UI
UpdateDisplay();
}
You can show the ProgressDialog in the NewActivity if it takes some time in getting rss feeds:
take help from the following code:
dialog = ProgressDialog.show(mParent,"","Loading,Please wait...", true);
final Thread t=new Thread(new Runnable() {
public void run() {
//get your rss feeds here
}
});
t.start();
Thread t1=new Thread(new Runnable() {
public void run() {
// TODO Auto-generated method stub
try {
t.join();
} catch (InterruptedException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
new Handler().post(new Runnable() {
public void run() {
dialog.cancel();
UpdateDisplay();
}
});
}
});
t1.start();
Hope you can understand what the above code is doing. Customized it a bit and use...:)
I'm trying to make an activity that is asked for some result. This result is normally returned instantly (in the onCreate), however, sometimes it is nesesary to wait for some internet-content to download which causes the "loader"-activity to show. What I want is that the loader-activity don't display anything more than a progressdialog (and that you can still se the old activity calling the loader-activity in the background) and I'm wondering wheather or not this is possible.
The code I'm using as of now is:
//ListComicsActivity.java
public class ListComicsActivity extends Activity
{
private static final int REQUEST_COMICS = 1;
/** Called when the activity is first created. */
#Override
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.list_comics);
Button button = (Button)findViewById(R.id.Button01);
button.setOnClickListener(new OnClickListener()
{
#Override
public void onClick(View v) {
Intent intent = new Intent();
intent.setAction(Intents.ACTION_GET_COMICS);
startActivityForResult(intent, REQUEST_COMICS);
}
});
}
/** Called when an activity called by using startActivityForResult finishes. */
#Override
public void onActivityResult(int requestCode, int resultCode, Intent data)
{
Toast toast = Toast.makeText(this, "The activity finnished", Toast.LENGTH_SHORT);
toast.show();
}
}
//LoaderActivity.java (answers to Intents.ACTION_GET_COMICS action-filter)
public class LoaderActivity extends Activity
{
private Intent result = null;
private ProgressDialog pg = null;
private Runnable returner = new Runnable()
{
public void run()
{
if(pg != null)
pg.dismiss();
LoaderActivity.this.setResult(Activity.RESULT_OK, result);
LoaderActivity.this.finish();
}
};
/** Called when the activity is first created. */
#Override
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
String action = getIntent().getAction();
if(action.equals(Intents.ACTION_GET_COMICS))
{
Runnable loader = new Runnable()
{
public void run()
{
WebProvider.DownloadComicList();
Intent intent = new Intent();
intent.setDataAndType(ComicContentProvider.COMIC_URI, "vnd.android.cursor.dir/vnd.mymir.comic");
returnResult(intent);
}
};
pg = ProgressDialog.show(this, "Downloading", "Please wait, retrieving data....");
Thread thread = new Thread(null, loader, "LoadComicList");
thread.start();
}
else
{
setResult(Activity.RESULT_CANCELED);
finish();
}
}
private void returnResult(Intent intent)
{
result = intent;
runOnUiThread(returner);
}
}
It turns out you can do this by setting the activitys theme-attribute to #android:style/Theme.Dialog and calling this.setVisible(false); in the onCreate-method of the activity.