I'm new to android programming. I was trying to make a splashscreen and i have two different images...one for the background and other is for the logo.....both the images are in separate imageviews. The size of the images would be around 23kb and 3kb respectively. However when i run the app. It shows an error that processor maybe doing additional work. Skipping 88 frames. This completely skips the splashscreen and directly goes to main activity. Please can anyone help me with the solution.
set background image in parent and give logo image as a child...
like this :-
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#drawable/backgroundImage"
tools:context="xyz.xyz.com.xyz.activity.SplashActivity">
<ImageView
android:id="#+id/logoImage"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerHorizontal="true"
android:layout_centerVertical="true"
android:layout_gravity="center"
android:src="#drawable/logoImage" />
</RelativeLayout>
In java code use this :-
public class SplashActivity extends AppCompatActivity {
private long ms = 0;
private long splashTime = 2000;
private boolean splashActive = true;
private boolean paused = false;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_splash);
Thread mythread = new Thread() {
public void run() {
try {
while (splashActive && ms < splashTime) {
if (!paused)
ms = ms + 100;
sleep(100);
}
} catch (Exception e) {
}
finally
{
System.out.println("reached");
Intent intent = new Intent(SplashActivity.this, LoginActivity.class);
System.out.println("reached1");
startActivity(intent);
System.out.println("reached2");
finish();
System.out.println("reached3");
}
}
};
mythread.start();
}
Related
friends. I started to learn Android app developinng with Android Studio and Java. Now i am trying to make one progressbar. When app is started we have two EditText fields where first is 100 by default(how will be the max value for progressbar ) and one EditText field for increment by(this is step) for progressbar. When we click Start it must show up via dialog.
I write the code, there is no more errors, but app is closing when i hit the Start Button. The progressbar is not working
This is the code:
activity_main.xml
<?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" >
<TextView
android:id="#+id/txt_max"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Max Value" />
<EditText
android:id="#+id/maximum"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="100.0" />
<TextView
android:id="#+id/txt_increment"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Increment by"/>
<EditText
android:id="#+id/increment"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="5.0" />
<Button
android:id="#+id/butt_Start"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Start" />
</LinearLayout>
This is the MainActivity.java:
public class MainActivity extends AppCompatActivity {
int increment;
ProgressDialog dialog;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Button startButton = (Button) findViewById(R.id.butt_Start);
startButton.setOnClickListener(new View.OnClickListener()
{
public void onClick(View view)
{
EditText et = (EditText) findViewById(increment);
increment = Integer.parseInt(et.getText().toString());
dialog = new ProgressDialog(MainActivity.this);
dialog.setCancelable(true);
dialog.setMessage("Loading...");
dialog.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL);
dialog.setProgress(0);
EditText max = (EditText) findViewById(R.id.maximum);
int maximum = Integer.parseInt(max.getText().toString());
dialog.setMax(maximum);
dialog.show();
Thread background = new Thread(new Runnable()
{
public void run()
{
try
{
while (dialog.getProgress() <= dialog.getMax())
{
Thread.sleep(500);
progressHandler.sendMessage(progressHandler.obtainMessage());
}
} catch (java.lang.InterruptedException e)
{
}
}
});
background.start();
}
Handler progressHandler = new Handler() {
public void handleMessage(Message msg) {
dialog.incrementProgressBy(increment);
}
};
});
}
}
There are some error with that code.. I will comment each by reporting your snippet:
public class MainActivity extends AppCompatActivity {
int increment;
ProgressDialog dialog;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Button startButton = (Button) findViewById(R.id.butt_Start);
startButton.setOnClickListener(new View.OnClickListener()
{
public void onClick(View view)
{
EditText et = (EditText) findViewById(increment);
Here is the first error: not really a wrong thing, but it's better to istantiate the EditText in your onCreate (outside the onClick), because this way you will re-create the EditText every time you click the button.
The error is double: you are using findViewById(increment) where, in your code, increment is an int variable whose value is actually 0. You have to use (as you did for the button)
findViewById(R.id.increment);
Going on:
increment = Integer.parseInt(et.getText().toString());
dialog = new ProgressDialog(MainActivity.this);
dialog.setCancelable(true);
dialog.setMessage("Loading...");
dialog.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL);
dialog.setProgress(0);
EditText max = (EditText) findViewById(R.id.maximum);
int maximum = Integer.parseInt(max.getText().toString());
Here the error is xml side: since you are assuming that max.getText().toString() is an Integer, add inputType to your xml with number value.
dialog.setMax(maximum);
dialog.show();
Thread background = new Thread(new Runnable()
{
public void run()
{
try
{
while (dialog.getProgress() <= dialog.getMax())
{
Thread.sleep(500);
progressHandler.sendMessage(progressHandler.obtainMessage());
}
} catch (java.lang.InterruptedException e)
{
}
}
});
background.start();
}
Handler progressHandler = new Handler() {
public void handleMessage(Message msg) {
dialog.incrementProgressBy(increment);
}
};
});
}
}
Another thing is that is better to avoid naming a variable with same name of your id, expecially because id should be representative of the control you are pointing at (for example call it "EditTextMaxValueMainActivity", this is a limit example but it is representative).
If I can suggest you, TheNewBoston channel/site is the best for tutorials, it has a couple of playlist with android basics to advanced and it is simple and really explicative. Good luck!
for other errors, we will need the logtrace
The Answer for me is here:
This line:
EditText et = (EditText) findViewById(increment);
Must be changed to:
EditText et = (EditText) findViewById**(R.id.increment)**;
And i go to design view of activity_main.xml and changed the inputType of increment EditText and maximum EditText to number.
And removed the decimal format from the numbers.
<EditText
android:id="#+id/increment"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="5" />
And here i had number with decimal, now i removed them.
<EditText
android:id="#+id/maximum"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="100" />
Imagine a number 10, then after user clicks a button it changes to 100. But how to make an efficient transition
10 -> 100,
that will display values like
12, 15, 18, ..., 97, 100 over 1 second.
I've seen something like that in "Cookie clicker" but couldn't find anything about that kind of transition in the source code.
I had an idea of a loop (for number1 < number2, do number1++), it will work fine for small numbers, but if 10 changes to 1 billion, then the loop will probably freeze the whole app.
Second idea is to get added value (100-10=90) and divide by 30 or 60 frames, and add this value with each frame. But what will happen if frame is dropped? - Probably value will not be added. What if user makes double click or the system adds values automatically?
Hope it gives an idea of what kind of number transition I need.
Maybe I overlooked and there is a simple approach? Any help is appreciated.
Hope this little demo using a ValueAnimator will inspire you to find an appropriate solution.
You can specify the duration of the animation (see code) and even adjust the frame-rate by saying mAnimator.setFrameDelay(frameDelay);.
By using animator.isRunning() or animator.isStarted() you can prevent double-click malfunction or other unwanted behaviour while the current animation is runnning.
The Main Activity:
/** ValueAnimator demo */
public class MainActivity extends Activity {
ValueAnimator mAnimator;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
final TextView tv = (TextView) findViewById(R.id.textview);
mAnimator = ValueAnimator.ofInt(1, 100).setDuration(1000);
mAnimator.setInterpolator(new AccelerateDecelerateInterpolator());
mAnimator.addUpdateListener(new AnimatorUpdateListener() {
#Override
public void onAnimationUpdate(final ValueAnimator animator) {
final Integer value = (Integer) animator.getAnimatedValue();
tv.setText(String.format("%04d", value));
}
});
mAnimator.addListener(new AnimatorListenerAdapter() {
#Override
public void onAnimationEnd(Animator animator) {
super.onAnimationEnd(animator);
final int endValue = Integer.parseInt((String) tv.getText());
mAnimator.setIntValues(endValue, endValue + 100);
}
});
}
/** Button callback */
public void onClick(final View view) {
if (!mAnimator.isStarted() && !mAnimator.isRunning()) {
mAnimator.start();
}
}
}
Simple demo layout:
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical" >
<TextView
android:id="#+id/textview"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textSize="25sp"
android:typeface="monospace"
android:text="0001" />
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Gimme +100"
android:onClick="onClick">
</Button>
Here's another demo (hope this answers your 2. question), which implements different behaviour dependent on single click or double-click on the button. Just experiment with it, you now have the basic building blocks to construct own behavour ...
/** ValueAnimator demo */
public class MainActivity extends Activity {
ValueAnimator mAnimator;
TextView mTv;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
mTv = (TextView) findViewById(R.id.textview);
mAnimator = ValueAnimator.ofInt(1, 100).setDuration(1000);
mAnimator.setInterpolator(new AccelerateDecelerateInterpolator());
mAnimator.addUpdateListener(new AnimatorUpdateListener() {
#Override
public void onAnimationUpdate(final ValueAnimator animator) {
final Integer value = (Integer) animator.getAnimatedValue();
mTv.setText(String.format("%04d", value));
}
});
final Button button = (Button) findViewById(R.id.button);
final GestureDetector gestureDetector = new GestureDetector(this,
new GestureDetector.SimpleOnGestureListener() {
#Override
public boolean onDoubleTap(MotionEvent e) {
performAnimation(100);
return true;
}
#Override
public boolean onSingleTapConfirmed(MotionEvent e) {
performAnimation(0);
return true;
}
});
button.setOnTouchListener(new OnTouchListener() {
#Override
public boolean onTouch(View v, MotionEvent event) {
return gestureDetector.onTouchEvent(event);
}
});
}
/** starts animation */
private void performAnimation(final int offset) {
if (!mAnimator.isStarted() && !mAnimator.isRunning()) {
final int endValue = Integer.parseInt((String) mTv.getText());
mAnimator.setIntValues(endValue + offset, endValue + 100 + offset);
mAnimator.start();
}
}
}
Don't forget to replace your layout file, since the click-attribute of the button has been removed:
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical" >
<TextView
android:id="#+id/textview"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textSize="25sp"
android:typeface="monospace"
android:text="0001" />
<Button
android:id="#+id/button"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Gimme +100" >
</Button>
</LinearLayout>
I guess you can do it by using different threads. Only main thread works with UI so you can divide the interval into small intervals and make a transitions in different threads.After send them to main thread and print. Hope it will help.
What i am doing : I am trying to play an mp3 file from an url in android. and control its position through progressbar.
what is happening:
FOR the strings.xml below code is working correctly song is playing and i am able to position the progress using the progressbar
<?xml version="1.0" encoding="utf-8"?>
<resources>
<string name="app_name">Android mp3 player</string>
<string name="testsong_20_sec">http://users.skynet.be/fa046054/home/P22/track06.mp3</string>
FOR the strings.xml below code the code is not working properly, i mean song is playing but i cannot control the position using the progress bar. only difference with this url is that this mp3 file is in google drive.
<?xml version="1.0" encoding="utf-8"?>
<resources>
<string name="app_name">Android mp3 player</string>
<string name="testsong_20_sec">https://286898c83aa5e6a4f7b29cdbef3b2f54430b4e71.googledrive.com/host/0B6a-NfRKFX8HQVZRSzFON1ExZEE/Chadh%20Gayi%20Maa%20Tere%20Naam%20Ki%20Sherewali%20Ka%20Sancha.mp3</string>
</resources>
What i am looking for: how to make sure my code plays proper music and i could toggle using progress bar in the second url properly
StreamingMp3Player.java
public class StreamingMp3Player extends Activity implements OnClickListener, OnTouchListener, OnCompletionListener, OnBufferingUpdateListener{
private ImageButton buttonPlayPause;
private SeekBar seekBarProgress;
public EditText editTextSongURL;
private MediaPlayer mediaPlayer;
private int mediaFileLengthInMilliseconds; // this value contains the song duration in milliseconds. Look at getDuration() method in MediaPlayer class
private final Handler handler = new Handler();
/** Called when the activity is first created. */
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
initView();
}
/** This method initialise all the views in project*/
private void initView() {
buttonPlayPause = (ImageButton)findViewById(R.id.ButtonTestPlayPause);
buttonPlayPause.setOnClickListener(this);
seekBarProgress = (SeekBar)findViewById(R.id.SeekBarTestPlay);
seekBarProgress.setMax(99); // It means 100% .0-99
seekBarProgress.setOnTouchListener(this);
editTextSongURL = (EditText)findViewById(R.id.EditTextSongURL);
editTextSongURL.setText(R.string.testsong_20_sec);
mediaPlayer = new MediaPlayer();
mediaPlayer.setOnBufferingUpdateListener(this);
mediaPlayer.setOnCompletionListener(this);
}
/** Method which updates the SeekBar primary progress by current song playing position*/
private void primarySeekBarProgressUpdater() {
seekBarProgress.setProgress((int)(((float)mediaPlayer.getCurrentPosition()/mediaFileLengthInMilliseconds)*100)); // This math construction give a percentage of "was playing"/"song length"
if (mediaPlayer.isPlaying()) {
Runnable notification = new Runnable() {
public void run() {
primarySeekBarProgressUpdater();
}
};
handler.postDelayed(notification,1000);
}
}
#Override
public void onClick(View v) {
if(v.getId() == R.id.ButtonTestPlayPause){
/** ImageButton onClick event handler. Method which start/pause mediaplayer playing */
try {
mediaPlayer.setDataSource(editTextSongURL.getText().toString()); // setup song from http://www.hrupin.com/wp-content/uploads/mp3/testsong_20_sec.mp3 URL to mediaplayer data source
mediaPlayer.prepare(); // you must call this method after setup the datasource in setDataSource method. After calling prepare() the instance of MediaPlayer starts load data from URL to internal buffer.
} catch (Exception e) {
e.printStackTrace();
}
mediaFileLengthInMilliseconds = mediaPlayer.getDuration(); // gets the song length in milliseconds from URL
if(!mediaPlayer.isPlaying()){
mediaPlayer.start();
buttonPlayPause.setImageResource(R.drawable.button_pause);
}else {
mediaPlayer.pause();
buttonPlayPause.setImageResource(R.drawable.button_play);
}
primarySeekBarProgressUpdater();
}
}
#Override
public boolean onTouch(View v, MotionEvent event) {
if(v.getId() == R.id.SeekBarTestPlay){
/** Seekbar onTouch event handler. Method which seeks MediaPlayer to seekBar primary progress position*/
if(mediaPlayer.isPlaying()){
SeekBar sb = (SeekBar)v;
int playPositionInMillisecconds = (mediaFileLengthInMilliseconds / 100) * sb.getProgress();
mediaPlayer.seekTo(playPositionInMillisecconds);
}
}
return false;
}
#Override
public void onCompletion(MediaPlayer mp) {
/** MediaPlayer onCompletion event handler. Method which calls then song playing is complete*/
buttonPlayPause.setImageResource(R.drawable.button_play);
}
#Override
public void onBufferingUpdate(MediaPlayer mp, int percent) {
/** Method which updates the SeekBar secondary progress by current song loading from URL position*/
seekBarProgress.setSecondaryProgress(percent);
}
}
main.xml
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/widget31"
android:layout_width="fill_parent"
android:layout_height="fill_parent" >
<EditText
android:id="#+id/EditTextSongURL"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_alignParentRight="true"
android:layout_alignParentTop="true"
android:ems="10"
android:height="100dp"
android:lines="3"
android:maxLines="3"
android:minLines="1" >
<requestFocus />
<requestFocus />
</EditText>
<ImageButton
android:id="#+id/ButtonTestPlayPause"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_below="#+id/EditTextSongURL"
android:layout_centerHorizontal="true"
android:contentDescription="TestPlayPause"
android:onClick="onClick"
android:src="#drawable/button_play" />
<SeekBar
android:id="#+id/SeekBarTestPlay"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_below="#+id/ButtonTestPlayPause" />
</RelativeLayout>
This happens because google drive HTTP server does not return proper length of the file.
$ wget -S https://286898c83aa5e6a4f7b29cdbef3b2f54430b4e71.googledrive.com/host/0B6a-NfRKFX8HQVZRSzFON1ExZEE/Chadh%20Gayi%20Maa%20Tere%20Naam%20Ki%20Sherewali%20Ka%20Sancha.mp3
...
Length: unspecified [audio/mpeg]
You have no total stream length, and therefore you don't have position relative to total length. Bad luck.
I'm writing a simple UI activity, the intention of which is to create an offscreen OpenGL surface and have a GL test render into it in a background GL thread. The rendering should start at a click of the button and the TextView should display some environment information (OpenGL version, etc.) as well as the test progress (as it may take a while) and result. In the sample I'm providing I have a 5 second delay in the 'run' function of the Runnable, but in the actual app code I have a JNI call to a native library that has the GL rendering code.
I've verified that the problem I'm experiencing exists with the 5 second delay as well as the original JNI call. The problem is that while the test is running (a 5 second delay in this sample), UI seems to be frozen and does not update until the test is done. The text that I'm setting to my TextView only appears when the test is finished. I thought that "queueEvent(new TestRunnable());" starts the runnable in a separate GL thread so that UI thread can continue with no interruptions, but it does not seem to be the case, or something else is missing. Do you guys/gals have any idea what I'm doing wrong?
The simplified layout:
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:keepScreenOn="true" android:orientation="vertical"
android:layout_width="fill_parent" android:layout_height="fill_parent">
<Button
android:id="#+id/startTestButton" android:textSize="18sp"
android:layout_width="fill_parent" android:layout_height="wrap_content"
android:text="#string/startTestButton" android:onClick="onStartTestClick"/>
<ScrollView android:layout_width="wrap_content" android:layout_height="wrap_content">
<TextView
android:id="#+id/logView" android:textSize="18sp"
android:layout_width="wrap_content" android:layout_height="wrap_content" />
</ScrollView>
<com.company.name.MyView
android:id="#+id/myView"
android:layout_width="match_parent" android:layout_height="match_parent"/>
</LinearLayout>
The simplified activity class is defined as follows:
public class MyActivity extends Activity
{
private String m_LogText = null;
private Button m_StartTestButton = null;
private TextView m_TestLog = null;
private MyView m_SurfaceView;
#Override
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
m_StartTestButton = (Button) findViewById(R.id.startTestButton);
m_SurfaceView = (MyView) findViewById(R.id.myView);
m_TestLog = (TextView) findViewById(R.id.logView);
// Check for OpenGL 2.0 support.
ActivityManager am = (ActivityManager) getSystemService(Context.ACTIVITY_SERVICE);
ConfigurationInfo info = am.getDeviceConfigurationInfo();
m_LogText = "Open GLES version detected: " + Integer.toHexString(info.reqGlEsVersion) + "\n";
m_TestLog.setText(m_LogText);
}
public void onStartTestClick(View view)
{
//
// This text here does not appear until the end of the test:
//
m_LogText += "\nStarting the test: default\n";
m_LogText += "Test is running, please wait...\n";
m_TestLog.setText(m_LogText);
m_SurfaceView.StartTest();
}
}
Simplified MyView class is defined as follows:
public class MyView extends GLSurfaceView
{
private TestRenderer m_Renderer = null;
private class TestRenderer implements GLSurfaceView.Renderer
{
public void onDrawFrame(GL10 gl) { }
public void onSurfaceChanged(GL10 gl, int width, int height) { }
public void onSurfaceCreated(GL10 gl, EGLConfig config) { }
class TestRunnable implements Runnable
{
public void run()
{
try
{
Thread.sleep(5000);
}
catch(InterruptedException ex)
{
Thread.currentThread().interrupt();
}
}
}
public void StartTest()
{
queueEvent(new TestRunnable());
}
}
public MyView(Context context)
{
this(context, null);
}
public MyView(Context context, AttributeSet attrs)
{
super(context, attrs);
m_Renderer = new TestRenderer();
setRenderer(m_Renderer);
}
public void StartTest()
{
m_Renderer.StartTest();
}
}
I create simple Android app (https://www.linux.com/learn/docs/683628-android-programming-for-beginners-part-1) with latest Android Studio. Code:
public class test_act extends Activity {
private static final int MILLIS_PER_SECOND = 1000;
private static final int SECONDS_TO_COUNTDOWN = 30;
private android.widget.TextView countdownDisplay;
private android.os.CountDownTimer timer;
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.full_act);
countdownDisplay = (android.widget.TextView) findViewById(R.id.time_display_box);
android.widget.Button startButton = (android.widget.Button) findViewById(R.id.startbutton);
startButton.setOnClickListener(new View.OnClickListener() {
public void onClick(View view) {
try {
showTimer(SECONDS_TO_COUNTDOWN * MILLIS_PER_SECOND);
} catch (NumberFormatException e) {
// method ignores invalid (non-integer) input and waits
// for something it can use
}
}
});
}
private void showTimer(int countdownMillis) {
if(timer != null) { timer.cancel(); }
timer = new android.os.CountDownTimer(countdownMillis, MILLIS_PER_SECOND) {
#Override
public void onTick(long millisUntilFinished) {
countdownDisplay.setText("counting down: " +
millisUntilFinished / MILLIS_PER_SECOND);
}
#Override
public void onFinish() {
countdownDisplay.setText("KABOOM!");
}
}.start();
}
}
My XML:
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent" >
<TextView
android:id="#+id/time_display_box"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
android:layout_centerHorizontal="true"
android:layout_marginTop="60dp"
android:text="#string/_00_30"
android:textAppearance="?android:attr/textAppearanceLarge"/>
<Button
android:id="#+id/startbutton"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="#+id/time_display_box"
android:layout_centerHorizontal="true"
android:layout_marginTop="41dp"
android:text="#string/start" />
</RelativeLayout>
In emulator it's good working. But on my Galaxy S2 with CyanogenMod10.1(Android 4.2.2) app wrong updating TextView. Screenshot:
How I can resolve this problem?
upd: after screen rotate TextView is updating once.
You might want to try invalidating your layout every time it is updated. I am guessing with how often the text is being updated the phone is not having enough time to redraw the layout. This would also explain why it works when you rotate your phone, because then the layout is forced to update.
countdownDisplay.invalidate();
Let me know if that does not work.
It commonly happens when you put UI updates inside try blocks, try to avoid it or wrap with runOnUiThread.
EDIT:
Another reason - you update it to fast - you code does 1000 updates per second i dont think it can handle it.