Develop Reference

Delay after the splash screen

My problem is, if I set my splash as a Dialog by adding this line in the manifest there's a delay: android:theme="#android:style/Theme.Holo.Dialog.NoActionBar"
After the splash screen disappears it takes around 6 seconds or more to the main activity to appear.
How can I make this delay disappear?
Splash code:
public class SplashActivity extends Activity {
private final int DURATION = 3000;
private Thread mSplashThread;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.splash);
mSplashThread = new Thread() {
#Override
public void run() {
synchronized (this) {
try {
wait(DURATION);
} catch (InterruptedException e) {
} finally {
finish();
Intent intent = new Intent(getBaseContext(),
MainActivity.class);
startActivity(intent);
}
}
}
};
mSplashThread.start();
}
#Override
public boolean onTouchEvent(MotionEvent event) {
if (event.getAction() == MotionEvent.ACTION_DOWN) {
synchronized (mSplashThread) {
mSplashThread.notify();
}
}
return true;
}
}

Rather than using splash as dialogue you can do all your background work in a splash screen activity and then start your main activity..if you need dialogue animation then you can use animation like this.
overridePendingTransition( R.anim.come_up, R.anim.go_down );
By this you can manage your activity switching time.

i am not sure that this answer is appropriate but i have done it like this :
#Override
public void run()
{
// TODO Auto-generated method stub
startActivity( new Intent ( SplashActivity.this , MainActivity.class ) ) ;
}
#Override
protected void onStart()
{
super.onStart();
if(!isClosed)
splashHandler.postDelayed(this, "putYourTimeHere");
}

This is working for me at its best..
final int splashTimeOut = 3000;
Thread splashThread = new Thread(){
int wait = 0;
#Override
public void run() {
try {
super.run();
while(wait < splashTimeOut){
sleep(100);
wait += 100;
}
} catch (Exception e) {
}finally{
startActivity(new Intent(SplashScreen.this,LoginActivity.class));
finish();
}
}
};
splashThread.start();

this is the code for splashscreen display with some time delay
..
here set splash image in drawable in splash_screen.xml.
import android.location.Criteria;
import android.location.Location;
import android.location.LocationListener;
import android.location.LocationManager;
import android.os.Build;
import android.os.Bundle;
import android.os.Handler;
import android.telephony.TelephonyManager;
import android.util.Log;
import android.view.Window;
import android.widget.Toast;
import android.annotation.SuppressLint;
import android.app.Activity;
import android.content.Context;
import android.content.Intent;
public class SplashScreen extends Activity {
LocationManager locationManager;
String provider, formattedDate, imeid;
double lat, lon;
#SuppressLint("NewApi")
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
requestWindowFeature(Window.FEATURE_NO_TITLE);
setContentView(R.layout.splash_screen);
Calendar c = Calendar.getInstance();
SimpleDateFormat df = new SimpleDateFormat("dd-MM-yyyy HH:mm:ss");
formattedDate = df.format(c.getTime());
new Handler().postDelayed(new Runnable() {
public void run() {
Log.i("JO", "run");
Intent in = new Intent(SplashScreen.this,SecondActivity.class);
//in.putExtra("refreshclick", clickRefreshButton);
//in.putExtra("Current_Date", formattedDate);
// in.putExtra("ImeiId", imeid);
//Log.i("JO", "Current_Date"+formattedDate+";
ImeiId"+imeid+";lat"+lat+"lon"+lon);
startActivity(in);
finish();
}
}, 1000);
}
}

new Handler().postDelayed(new Runnable() {
#Override
public void run() {
Intent i = new Intent(SplashActivity.this, MainActivity.class);
startActivity(i);
finish();
}
}, DURATION);
}

Main Activity not opening

My app seems to start up properly, with the splash screen and stuff. But when it sleeps for 6 secs and when it supposed to get into the main activity the app crashes any help please?
Here is me code (android.intent.action1.MAINACTIVIVTY, the "action" was purposely changed to "action1")
package com.hellhogone.multitools;
import com.hellhogone.multitools.R;
import android.media.MediaPlayer;
import android.os.Bundle;
import android.app.Activity;
import android.content.Intent;
import android.view.Window;
import android.view.WindowManager;
public class Splash extends Activity{
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
requestWindowFeature(Window.FEATURE_NO_TITLE);
getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_FULLSCREEN);
setContentView(R.layout.splash);
MediaPlayer yo = MediaPlayer.create(Splash.this, R.raw.smusic);
yo.start();
Thread timer = new Thread(){
public void run(){
try{
sleep(6000);
}catch(InterruptedException e){
e.printStackTrace();
}finally{
Intent h1 = new Intent("android.intent.action1.MAINACTIVITY");
startActivity(h1);
}
}
};
timer.start();
}
#Override
protected void onPause() {
// TODO Auto-generated method stub
super.onPause();
finish();
}
}

You cannot start an activity from another thread than the UI thread. To avoid this problem you can use runOnUiThread() :
}finally{
runOnUiThread(new Runnable() {
public void run() {
Intent h1 = new Intent("android.intent.action1.MAINACTIVITY");
startActivity(h1);
}
});
}

Android - Change the Image View Source at run time after few seconds

The following code is for a splash screen in my app.What I need to be done is when the activity loads the image should be displayed as default and then after few seconds the image should be changed to another in the same activity. I have another image like the first one with different color. I wanted to change the screen for that image after few seconds.
I have done it like this in my code.
package com.ruchira.busguru;
import android.media.MediaPlayer;
import android.os.AsyncTask;
import android.os.Bundle;
import android.app.Activity;
import android.content.Intent;
import android.graphics.Color;
import android.view.Menu;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.ImageView;
import android.widget.RelativeLayout;
public class SplashScreen extends Activity {
ImageView imgBus;
MediaPlayer introSound, bellSound;
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.splash_screen);
imgBus = (ImageView) findViewById(R.id.imgBus);
imgBus.setImageResource(R.drawable.blackbus);
introSound = MediaPlayer.create(SplashScreen.this, R.raw.enginestart);
introSound.start();
Thread timer = new Thread(){
public void run(){
try{
sleep(3000);
} catch (InterruptedException e) {
e.printStackTrace();
}finally{
imgBus.setImageResource(R.drawable.bluekbus);
}
}
};
timer.start();
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.splash_screen, menu);
return true;
}
#Override
protected void onPause() {
// TODO Auto-generated method stub
super.onPause();
introSound.stop();
finish();
}
#Override
protected void onStop() {
// TODO Auto-generated method stub
super.onStop();
introSound.stop();
finish();
}
}
but the problem is the program stops by executing in the thread saying...
"android.view.ViewRoot$CalledFromWrongThreadException: Only the original thread that created a view hierarchy can touch its views."
How I can achieve this target ? Does anybody please help me to sort out this problem. I am new to android development..
Thanks.

You should use the ImageView's Handler and a Runnable. Handler's are schedulers specific to Android and they can run on the UI thread. Try this:
ImageView imgBus;
MediaPlayer introSound, bellSound;
Runnable swapImage = new Runnable() {
#Override
public void run() {
imgBus.setImageResource(R.drawable.bluekbus);
}
};
And inside onCreate() call:
imgBus = (ImageView) findViewById(R.id.imgBus);
imgBus.setImageResource(R.drawable.blackbus);
imgBus.postDelayed(swapImage, 3000); // Add me!
Understand that splash screens are frowned upon because you should focus on starting the app as soon as possible (while loading the slower element in the background). However sometimes a slight delay is unavoidable.

Write this inside finally
runOnUiThread(new Runnable() {
public void run() {
SplashScreen.class.img.setImageResource(R.drawable.bluekbus);
}
});
You should always update your UI from the UI Thread itself...

Try the following,
We cannot access and update the UI from worker threads, only we can access the UI from UIThread. If we need it to update with background thread then we can use Handler to do this like in the following code.
this.imgBus = (ImageView) findViewById(R.id.splashImageView);
imgBus.setImageResource(R.drawable.your_first_image);
this.handler = new Handler();
introSound = MediaPlayer.create(SplashTestForSO.this, R.raw.enginestart);
introSound.start();
Thread timer = new Thread(){
public void run(){
try{
sleep(2000);
YourActivity.this.handler.post(runnable);
sleep(1000);
} catch (InterruptedException e) {
e.printStackTrace();
}finally{
}
}
};
timer.start();
this.runnable = new Runnable() {
public void run() {
//call the activity method that updates the UI
YourActivity.this.imgBus.setImageResource(R.drawable.your_scond_image_view);
}
};

OnResume Activity throwing error, Source Look-Up Fail

So the super comes from MingleActivity, which extends Activity.It keeps throwing an error at ActivityThread.performResumeActivity(IBinder, boolean). My Try/Catch simply throws a Java.lang.Nullpointerexception error, so not really getting a lot of help there. It just keeps asking me to edit the source path.
package mingle.mix;
import android.content.Intent;
import android.os.Bundle;
import android.util.Log;
import android.view.animation.Animation;
import android.view.animation.AnimationUtils;
import android.view.animation.Animation.AnimationListener;
import android.widget.TextView;
import android.widget.Toast;
public class MingleSpalshActivity extends MingleActivity {
/** Called when the activity is first created. */
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.spalsh);
try
{
startAnimating();
}
catch (Exception e)
{
// this is the line of code that sends a real error message to the log
Log.e("ERROR", "ERROR IN CODE: " + e.toString());
// this is the line that prints out the location in
// the code where the error occurred.
e.printStackTrace();
}
}
private void startAnimating() {
// Fade in top title
TextView logo1 = (TextView) findViewById(R.id.title_text);
Animation fade1 = AnimationUtils.loadAnimation(this, R.anim.fade_in);
logo1.startAnimation(fade1);
// Transition to Main Menu when bottom title finishes animating
fade1.setAnimationListener(new AnimationListener() {
public void onAnimationEnd(Animation animation) {
// The animation has ended, transition to the Main Menu screen
startActivity(new Intent(MingleSpalshActivity.this, MingleGameActivity.class));
MingleSpalshActivity.this.finish();
//Toast toast = Toast.makeText(getApplicationContext(), "A TOAST", Toast.LENGTH_SHORT );
//toast.show();
}
public void onAnimationRepeat(Animation animation) {
}
public void onAnimationStart(Animation animation) {
}
});
}
#Override
protected void onPause() {
super.onPause();
// Stop the animation
TextView logo1 = (TextView) findViewById(R.id.title_text);
logo1.clearAnimation();
}
#Override
protected void onResume()
{
super.onResume();
// Start animating at the beginning so we get the full splash screen experience
startAnimating();
}
}

Can we see the onResume() in MingleActivity?
Why are you wrapping the call to startAnimating() in a try/catch block when the method throws no Exception?

cant call function from inside thread or asyntask

I am using a thread and a handler in android. The app works fine as long as i dont any function from outside the activity. But if i call some funcyion from outside the activity from inside a thread, it gives NullPointerException.
package com.prog;
import com.API.TextBoxCheck;
import android.app.Activity;
import android.app.ProgressDialog;
import android.os.Bundle;
import android.os.Handler;
import android.util.Log;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;
public class ProgressBarExample extends Activity {
private Handler handler = new Handler();
int i;
/** Called when the activity is first created. */
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
Button btn=(Button)findViewById(R.id.button1);
btn.setOnClickListener(new OnClickListener(){
TextView tv=(TextView)findViewById(R.id.textView1);
#Override
public void onClick(View v) {
// TODO Auto-generated method stub
Thread thread = new Thread(null, doBackgroundThreadProcessing,
"Background");
thread.start();
}});
Button stopBtn=(Button)findViewById(R.id.button2);
stopBtn.setOnClickListener(new OnClickListener(){
#Override
public void onClick(View v) {
// TODO Auto-generated method stub
finish();
}});
}
private Runnable doBackgroundThreadProcessing = new Runnable() {
public void run() {
try {
backgroundThreadProcessing();
} catch (InterruptedException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
};
private void backgroundThreadProcessing() throws InterruptedException {
TextView tv=(TextView)findViewById(R.id.textView1);
i=0;
while(i<100)
{
handler.post(doUpdateGUI);
Thread.sleep(50);
i++;
}
EditText et=(EditText)findViewById(R.id.editText1);
TextBoxCheck tbc = new com.API.TextBoxCheck();
String reply=tbc.TextBoxChecker(et.getText().toString(),10);
Log.d("thread", reply);
}
private Runnable doUpdateGUI = new Runnable() {
public void run() {
updateGUI();
}
private void updateGUI() {
// TODO Auto-generated method stub
TextView tv=(TextView)findViewById(R.id.textView1);
tv.setText(i+"%");
}
};
}
I have left out the code of textBoxCheck becoz i think it may be unnecesarry here.
Please help me on this.
PS. : I also tried using AsyncTask but the same problem occurs.

You are not on UI thread. You must be on UI thread to operate on any UI items. Create a handler on the UI thread and call your backgroundThreadProcessing(); from the handler and not from a non-UI thread.