I'd like to show the progress bar, generate the computation, then after I do that I'd like the progressbar to disappear and I want to set the textview to the result of my generate result. Yet when I do the below, the progress bar never displays, yet the textview updates appropriately. I originally wanted to do this using AsyncTask but since thats been deprecated I wanted to try a modern method but I'm afraid I can't get it to work. Can anyone see what is wrong?
genResult.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
new Thread(new Runnable() {
#Override
public void run() {
runOnUiThread(new Runnable() {
public void run() {
// do onPreExecute stuff
pb.setVisibility(View.VISIBLE);
}
});
// do your stuff
boolean res = exp.genResult();
long startTime = System.nanoTime();
while(System.nanoTime()-startTime<50000){
}
result.outcomes.add(res);
runOnUiThread(new Runnable() {
public void run() {
// do onPostExecute stuff
pb.setVisibility(View.INVISIBLE);
lastRes.setText(Boolean.toString(res));
}
});
}
}).start();
}
});
Below is the XML file
<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout
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">
<Button
android:id="#+id/gen_button"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="generate result"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintVertical_bias="0.941" />
<TextView
android:id="#+id/title_bin"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Title"
app:layout_constraintBottom_toTopOf="#+id/gen_button"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.498"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintVertical_bias="0.153" />
<Button
android:id="#+id/detail_bin_button"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="View Details"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.941"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintVertical_bias="0.005" />
<Button
android:id="#+id/backbutton_bin"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="4dp"
android:text="go back"
app:layout_constraintEnd_toStartOf="#+id/detail_bin_button"
app:layout_constraintHorizontal_bias="0.105"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
<TextView
android:id="#+id/lastresultbin"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginStart="36dp"
android:layout_marginLeft="36dp"
android:text="lastresult"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="#+id/backbutton_bin"
app:layout_constraintVertical_bias="0.313" />
<TextView
android:id="#+id/probabilityViewer"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="208dp"
android:text="Probability"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.65"
app:layout_constraintStart_toEndOf="#+id/lastresultbin"
app:layout_constraintTop_toBottomOf="#+id/detail_bin_button" />
<TextView
android:id="#+id/plaintext_lastres_bin"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginBottom="24dp"
android:text="Last Result"
app:layout_constraintBottom_toTopOf="#+id/lastresultbin"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.105"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="#+id/backbutton_bin"
app:layout_constraintVertical_bias="1.0" />
<TextView
android:id="#+id/plaintext_prob"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="164dp"
android:layout_marginEnd="44dp"
android:layout_marginRight="44dp"
android:text="Probability of Success"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintTop_toBottomOf="#+id/detail_bin_button" />
<ProgressBar
android:id="#+id/progressBar1"
android:layout_width="100dp"
android:layout_height="20dp"
android:layout_centerInParent="true"
android:layout_marginTop="148dp"
android:indeterminate="true"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.333"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
/>
</androidx.constraintlayout.widget.ConstraintLayout>
The issue is that System.nanoTime() used in the while loop was too quick to complete. When we switch to using System.currentTimeInMillis() we can notice a difference in the delay and thus the spinner shows and hides as expected.
Related
If i click on login button my username and password is same as condition but get login failed in Toast Message. Insert correct username and password compiler going to else part. I don't know what is the problem. I am stuck from 4 hours. If you know please solve i am a newbie.
Here down is my code:
public class MainActivity extends AppCompatActivity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
TextView Username=(TextView) findViewById(R.id.Username);
TextView password=(TextView) findViewById(R.id.password);
Button loginbtn=(Button) findViewById(R.id.Button);
loginbtn.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
if (Username.getText().toString().equals("ADMIN") && password.getText().toString().equals("ADMIN")) {
Toast.makeText(getApplicationContext(), "Login Successfull", Toast.LENGTH_SHORT).show();
} else{
Toast.makeText(getApplicationContext(), "Login Faild!!", Toast.LENGTH_SHORT).show();
}
}
});
}
}
activity.xml
<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout 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/backs"
tools:context=".MainActivity">
<TextView
android:id="#+id/Username"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="50dp"
android:text="Sign in"
android:textColor="#FFFFFF"
android:textSize="30sp"
android:textStyle="bold"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.498"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
<EditText
android:id="#+id/edittext"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_marginStart="30dp"
android:layout_marginLeft="30dp"
android:layout_marginTop="30dp"
android:layout_marginEnd="30dp"
android:layout_marginRight="30dp"
android:background="#FFFFFF"
android:drawableLeft="#drawable/ic_baseline_person_outline_24"
android:drawablePadding="8dp"
android:ems="10"
android:hint="Username"
android:inputType="textPersonName"
android:minHeight="48dp"
android:padding="10dp"
android:textColor="#000000"
android:textColorHint="#000000"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.5"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="#+id/Username" />
<EditText
android:id="#+id/password"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_marginStart="30dp"
android:layout_marginLeft="30dp"
android:layout_marginTop="40dp"
android:layout_marginEnd="30dp"
android:layout_marginRight="30dp"
android:background="#FFFFFF"
android:drawableLeft="#drawable/ic_baseline_lock_24"
android:drawablePadding="8dp"
android:ems="10"
android:hint="Password"
android:inputType="textPassword"
android:minHeight="48dp"
android:padding="10dp"
android:textColor="#000000"
android:textColorHint="#000000"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.95"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="#+id/edittext" />
<TextView
android:id="#+id/textView3"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="4dp"
android:text="Forgot password"
android:textColor="#000000"
android:textSize="18sp"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.837"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="#+id/password" />
<Button
android:id="#+id/Button"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_marginLeft="30dp"
android:layout_marginTop="28dp"
android:layout_marginRight="30dp"
android:background="#drawable/bg"
android:text="#string/login"
android:textColor="#FFFFFF"
android:textSize="20sp"
android:textStyle="bold"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="#+id/textView3" />
<TextView
android:id="#+id/other"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="288dp"
android:layout_marginEnd="20dp"
android:layout_marginRight="20dp"
android:paddingLeft="30dp"
android:paddingRight="30dp"
android:text="or sign in with"
android:textColor="#BDB9B9"
android:textSize="16sp"
android:textStyle="bold"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.495"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="#+id/Button" />
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_marginBottom="10dp"
android:gravity="center"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.0"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="#+id/other"
app:layout_constraintVertical_bias="1.0">
<ImageView
android:layout_width="48dp"
android:layout_height="48dp"
android:layout_marginRight="20dp"
android:src="#drawable/google" />
<ImageView
android:layout_width="50dp"
android:layout_height="match_parent"
android:layout_marginRight="20dp"
android:src="#drawable/facebook" />
<ImageView
android:layout_width="48dp"
android:layout_height="48dp"
android:layout_marginRight="20dp"
android:src="#drawable/twitter" />
</LinearLayout>
</androidx.constraintlayout.widget.ConstraintLayout>
OUTPUT
You are referring to the R.id.Username component which is the SIGN UP text and you are casting the fields as TextViews instead of EditTexts.
Change your variables to:
EditText Username=(EditText) findViewById(R.id.edittext);
EditText password=(EditText) findViewById(R.id.password);
You are getting the text from the wrong reference, Change the below code to later.
TextView Username=(TextView) findViewById(R.id.Username);
to
TextView Username=(TextView) findViewById(R.id.edittext);
I have two EditText in MyActivity. Here I have provided UI XML.
<androidx.constraintlayout.widget.ConstraintLayout
android:layout_width="match_parent"
android:layout_height="match_parent">
<Button
android:id="#+id/button_insta"
android:layout_width="135dp"
android:layout_height="0dp"
android:layout_marginBottom="33dp"
android:text="Download"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent" />
<EditText
android:id="#+id/editUrli"
android:layout_width="wrap_content"
android:layout_height="0dp"
android:layout_marginTop="64dp"
android:layout_marginBottom="18dp"
android:ems="10"
android:inputType="textPersonName"
android:text=""
android:textColor="#0C0C0C"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintVertical_bias="0.0" />
<TextView
android:id="#+id/textView2"
android:layout_width="177dp"
android:layout_height="39dp"
android:layout_marginEnd="81dp"
android:layout_marginRight="81dp"
android:text="Paste Instagram video link to download "
android:textStyle="bold"
app:layout_constraintBottom_toBottomOf="#+id/imageView3"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toEndOf="#+id/imageView3"
app:layout_constraintTop_toTopOf="#+id/imageView3" />
<ImageView
android:id="#+id/imageView3"
android:layout_width="78dp"
android:layout_height="43dp"
android:layout_marginStart="41dp"
android:layout_marginLeft="41dp"
android:layout_marginTop="16dp"
android:layout_marginEnd="18dp"
android:layout_marginRight="18dp"
android:src="#drawable/insta"
app:layout_constraintEnd_toStartOf="#+id/textView2"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
</androidx.constraintlayout.widget.ConstraintLayout>
</com.google.android.material.card.MaterialCardView>
<com.google.android.material.card.MaterialCardView
android:id="#+id/card"
android:layout_width="0dp"
android:layout_height="200dp"
android:layout_margin="8dp"
android:layout_marginStart="16dp"
android:layout_marginLeft="16dp"
android:layout_marginTop="8dp"
android:layout_marginEnd="16dp"
android:layout_marginRight="16dp"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
tools:ignore="MissingConstraints">
<androidx.constraintlayout.widget.ConstraintLayout
android:layout_width="match_parent"
android:layout_height="match_parent">
<EditText
android:id="#+id/editUrl"
android:layout_width="wrap_content"
android:layout_height="0dp"
android:layout_marginTop="64dp"
android:layout_marginBottom="18dp"
android:ems="10"
android:inputType="textPersonName"
android:text=""
android:textColor="#0C0C0C"
app:layout_constraintBottom_toTopOf="#+id/button_download"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
<Button
android:id="#+id/button_download"
android:layout_width="135dp"
android:layout_height="0dp"
android:layout_marginBottom="33dp"
android:text="Download"
android:onClick="onClick"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent" />
<ImageView
android:id="#+id/fblogo"
android:layout_width="95dp"
android:layout_height="39dp"
android:layout_marginStart="16dp"
android:layout_marginLeft="16dp"
android:layout_marginTop="13dp"
android:layout_marginEnd="18dp"
android:layout_marginRight="18dp"
android:layout_marginBottom="13dp"
android:contentDescription="TODO"
android:src="#drawable/fb"
app:layout_constraintBottom_toTopOf="#+id/editUrl"
app:layout_constraintEnd_toStartOf="#+id/textView"
app:layout_constraintHorizontal_bias="0.0"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintVertical_bias="0.0" />
<TextView
android:id="#+id/textView"
android:layout_width="0dp"
android:layout_height="0dp"
android:layout_marginTop="16dp"
android:layout_marginEnd="75dp"
android:layout_marginRight="75dp"
android:layout_marginBottom="84dp"
android:text="Paste FB video link to download"
android:textStyle="bold"
app:layout_constraintBottom_toTopOf="#+id/button_download"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toEndOf="#+id/fblogo"
app:layout_constraintTop_toTopOf="parent" />
</androidx.constraintlayout.widget.ConstraintLayout>
</com.google.android.material.card.MaterialCardView>
In my Activity java code has this button click code
protected void onCreate(#Nullable Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_download);
inputURl = findViewById(R.id.editUrl);
editUrlinsta = findViewById(R.id.editUrli);
BtnDownload = (Button) findViewById(R.id.button_download);
downloadinsta = (Button) findViewById(R.id.button_insta);
BtnDownload.setOnClickListener(this);
downloadinsta.setOnClickListener(this);
}
#Override
public void onClick(View v) {
switch (v.getId()){
case R.id.button_download:
try{
final FacebookDownloader downloaders = new FacebookDownloader(Download.this,inputURl.getText().toString());
downloaders.DownloadVideo();
inputURl.getText().clear();
} catch(Exception e) {}
break;
case R.id.button_insta:
final InstaDownloader downloaderInsta = new InstaDownloader(Download.this,editUrlinsta.getText().toString());
downloaderInsta.DownloadVideo();
editUrlinsta.getText().clear();
break;
default:
break;
}
}
The problem is The first button which I have named button_download is working as expected. But the second button button_insta not working as expected. what I want to do, is When one of the buttons clicks, getting data from EditText. The button_download works fine. the button_insta is not working fine.
I couldn't get value from editUrli when the button click. But same code works for button_download and editUrl
Try to separate those button click function like so :
BtnDownload.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
try{
final FacebookDownloader downloaders = new FacebookDownloader(Download.this,inputURl.getText().toString());
downloaders.DownloadVideo();
inputURl.getText().clear();
} catch(Exception e) {}
}
});
downloadinsta.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
final InstaDownloader downloaderInsta = new InstaDownloader(Download.this,editUrlinsta.getText().toString());
downloaderInsta.DownloadVideo();
editUrlinsta.getText().clear();
}
});
I'm using the default ProgressBar widget, for indeterminate progress, in a Linear Layout with Style: #android:style/Widget.DeviceDefault.Light.ProgressBar.Small
If I start the activity with the ProgressBar VISIBLE and never make it INVISIBLE or GONE it shows ok. But if I put progressBar.setVisibility(progressBar.GONE); or progressBar.setVisibility(progressBar.INVISIBLE); anywhere in my code, the space for the ProgressBar is on the UI, but I cant see it.
I thought it might be a leaky parallel thread and removed all multi-threading from my app, but it still won't appear if INVISIBLE or GONE is anywhere in my code.
It works fine on other Activities.
Layout XML:
<?xml version="1.0" encoding="utf-8"?>
<androidx.drawerlayout.widget.DrawerLayout 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:id="#+id/drawer_layout"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true"
tools:layout_editor_absoluteX="16dp"
tools:layout_editor_absoluteY="260dp">
<ScrollView
android:id="#+id/myTeamsScrollView"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fillViewport="true"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.5"
app:layout_constraintStart_toStartOf="parent"
tools:layout_editor_absoluteY="8dp">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="#+id/content_frame"
android:paddingLeft="16dp"
android:paddingRight="16dp"
android:orientation="vertical">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="left"
android:orientation="horizontal">
<LinearLayout
android:layout_width="32dp"
android:layout_height="wrap_content"
android:layout_gravity="left"
android:layout_marginLeft="16dp"
android:orientation="vertical"
android:paddingTop="32dp">
<ImageView
android:id="#+id/menu1ImageView"
android:layout_width="30dp"
android:layout_height="30dp"
android:layout_gravity="center"
android:contentDescription="#string/userNavigationMenuButtonContent"
android:onClick="openDrawer"
app:srcCompat="#drawable/menu_icon" />
</LinearLayout>
</LinearLayout>
<EditText
android:id="#+id/enterNewTeamEditText"
android:layout_width="340dp"
android:layout_height="wrap_content"
android:layout_marginTop="16dp"
android:layout_gravity="center_horizontal"
android:contentDescription="#string/enterTeamNameEditTextcontent"
android:ems="10"
android:hint="#string/teamNameHint"
android:inputType="textEmailAddress"
android:textColor="#color/colorPrimary" />
<ProgressBar
android:id="#+id/myTeamsProgressBar"
style="#android:style/Widget.DeviceDefault.Light.ProgressBar.Small"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center_horizontal"
android:layout_marginTop="16dp"
android:alpha="1"
android:foregroundTint="#FFFFCC"
android:progressTint="#FFFFCC"
android:visibility="visible" />
<TextView
android:id="#+id/deckTypeTextView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center_horizontal"
android:layout_marginTop="16dp"
android:contentDescription="#string/remotePokerlabelcontent"
android:enabled="false"
android:text="#string/newTeamDeckType"
android:textAlignment="center"
android:textColor="#color/colorPrimary"
android:textSize="14sp"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.5"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="#+id/remotePokerTextView" />
<Spinner
android:id="#+id/newTeamDeckTypeSpinner"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center_horizontal"
android:layout_marginTop="8dp"
android:background="#drawable/spinner"
android:textAlignment="center"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.5"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="#+id/enterNewTeamEditText" />
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="center_horizontal"
android:orientation="horizontal"
android:paddingTop="16dp">
<Button
android:id="#+id/createTeamButton"
android:layout_width="wrap_content"
android:layout_height="32dp"
android:layout_gravity="center_horizontal"
android:layout_marginEnd="8dp"
android:layout_weight="1"
android:background="#color/colorButton"
android:contentDescription="#string/createTeamButtoncontent"
android:fontFamily="#string/fontfamily"
android:onClick="createTeam"
android:text="Create Team"
android:textColor="#color/colorPrimaryDark"
android:textSize="14sp" />
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="center_horizontal"
android:orientation="horizontal"
android:paddingTop="16dp">
<Button
android:id="#+id/receivedJoinRequestsButton"
android:layout_width="147dp"
android:layout_height="wrap_content"
android:layout_marginEnd="16dp"
android:background="#color/colorButton"
android:contentDescription="#string/createTeamButtoncontent"
android:fontFamily="#string/fontfamily"
android:onClick="showJoinRequests"
android:text="#string/myTeamsJoinRequestsButton"
android:textColor="#color/colorPrimaryDark"
android:textSize="14sp"
android:layout_weight="1" />
<Switch
android:id="#+id/teamTypesSwitch"
android:layout_width="143dp"
android:layout_height="wrap_content"
android:checked="false"
android:fontFamily="#string/fontfamily"
android:text="#string/switchMemberTeams"
android:textColor="#color/colorPrimary"
android:layout_weight="1" />
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_gravity="center_horizontal"
android:layout_marginTop="16dp"
android:orientation="vertical">
<ListView
android:id="#+id/myTeamsListView"
android:layout_width="match_parent"
android:layout_height="fill_parent"
android:layout_marginBottom="32dp"
android:layout_weight="1"
android:alwaysDrawnWithCache="true"
android:background="#drawable/spinner"
android:contentDescription="#string/myTeamsListViewcontent"
android:isScrollContainer="true"
android:scrollbars="vertical"
android:scrollingCache="true"
android:smoothScrollbar="true"></ListView>
</LinearLayout>
</LinearLayout>
</ScrollView>
<com.google.android.material.navigation.NavigationView
android:id="#+id/nav_view"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_gravity="start"
android:fitsSystemWindows="true"
android:onClick="onSwitchChange"
app:headerLayout= "#layout/nav_header_main"
app:menu="#xml/drawer_view" />
</androidx.drawerlayout.widget.DrawerLayout>
In the Activity onCreate I call populateMemberTeams(); I added a CountDownTimer to check if the progressBar is on the screen and it is...Before the 2 seconds, there is a empty space, but I can't see the ProgressBar
When the timer expires the UI adjusts when the ProgressBar changes to GONE.
private void populateMemberTeams() {
ListView myTeamsListView = findViewById(R.id.myTeamsListView);
ProgressBar progressBar = findViewById(R.id.myTeamsProgressBar);
progressBar.setVisibility(progressBar.VISIBLE);
mAuth = FirebaseAuth.getInstance();
String userId = mAuth.getCurrentUser().getUid();
callTeamManagement.populateMemberTeams(TAG, passedActivity, context, userId);
new CountDownTimer(2000, 1000) {
public void onFinish() {
progressBar.setVisibility(progressBar.GONE);
}
public void onTick(long millisUntilFinished) {
// millisUntilFinished The amount of time until finished.
}
}.start();
}
I have tried:
Changing the ProgressBar style in case it was a colour issue;
INVISIBLE instead of GONE;
Putting the ProgressBar inside its own LinearLayout
progressBar.setVisibility(progressBar.VISIBLE);
progressBar.setVisibility(View.VISIBLE);
progressBar.setVisibility(ProgressBar.VISIBLE);
You should use runOnUiThread.
Helper method for running part of a method on the UI thread.
runOnUiThread(new Runnable() {
#Override
public void run() {
progressBar.setVisibility(View.VISIBLE);
//progressBar.setVisibility(View.INVISIBLE);
//progressBar.setVisibility(View.GONE);
}
});
I have an app with 6 buttons that, when clicked, display strings with different lengths:
<android.support.constraint.ConstraintLayout 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"
tools:context=".MainActivity">
<TextView
android:id="#+id/textView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginBottom="8dp"
android:layout_marginEnd="116dp"
android:layout_marginStart="16dp"
android:layout_marginTop="128dp"
android:text=""
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintEnd_toStartOf="#+id/atbutt"
app:layout_constraintHorizontal_bias="0.0"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintVertical_bias="0.028" />
<Button
android:id="#+id/namebutt"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_marginEnd="116dp"
android:layout_marginStart="16dp"
android:onClick="changename"
android:text="Name"
app:layout_constraintBaseline_toBaselineOf="#+id/titlebutt"
app:layout_constraintEnd_toStartOf="#+id/descbutt"
app:layout_constraintStart_toStartOf="parent" />
<Button
android:id="#+id/titlebutt"
android:layout_width="103dp"
android:layout_height="wrap_content"
android:layout_marginTop="16dp"
android:onClick="changetitle"
android:text="Title"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.448"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
<Button
android:id="#+id/descbutt"
android:layout_width="126dp"
android:layout_height="wrap_content"
android:layout_marginEnd="16dp"
android:onClick="changedesc"
android:text="Description"
app:layout_constraintBaseline_toBaselineOf="#+id/titlebutt"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toEndOf="#+id/namebutt" />
<Button
android:id="#+id/urlbutt"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_marginEnd="116dp"
android:layout_marginStart="16dp"
android:text="Url"
app:layout_constraintEnd_toStartOf="#+id/contbutt"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="#+id/namebutt" />
<Button
android:id="#+id/atbutt"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_marginEnd="133dp"
android:text="Publish Date"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toEndOf="#+id/textView"
app:layout_constraintTop_toBottomOf="#+id/namebutt" />
<Button
android:id="#+id/contbutt"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_marginEnd="16dp"
android:layout_marginTop="4dp"
android:text="Content"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toEndOf="#+id/urlbutt"
app:layout_constraintTop_toBottomOf="#+id/titlebutt" />
</android.support.constraint.ConstraintLayout>
When I click namebutt, titlebutt or descbutt ( the only ones that have the onClick function at the moment), atbutt just disappears with no errors.
The onClicks:
public void changename(View view){
textView.setText(null);
for(int a=0; a<articles.size(); a++) {
textView.append(articles.get(a).nam);
}
}
public void changetitle(View view){
textView.setText(null);
for(int a=0; a<articles.size(); a++) {
textView.append(articles.get(a).titl);
}
}
public void changedesc(View view){
textView.setText(null);
for(int a=0; a<articles.size(); a++) {
textView.append(articles.get(a).desc);
}
}
This only happens to atbutt
PS: I'm sorry for my choice in naming my buttons
This happens because of this attribute of atbutt:
app:layout_constraintStart_toEndOf="#+id/textView"
which means that the start of atbutt is at the end of the TextView and as the TextView grows it eliminates atbutt's size.
Change to something like this:
<Button
android:id="#+id/atbutt"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_marginEnd="133dp"
android:text="Publish Date"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toEndOf="#+id/urlbutt"
app:layout_constraintTop_toBottomOf="#+id/namebutt" />
I find that there is a quick way to create animation with ConstraintSet for ConstrainLayout Activity. Faster than use TransitionManager for RelativeLayout
ConstraintSet use two xml file for an Activity. One for the first position and next one for the destination.
I want to create something like this:
https://media.giphy.com/media/2UwXdWEoLWe9iQMFIY/giphy.gif
But there is no clearly instruction show how to use it in Java. Anyone had done this can show me the source code or link to some post like that.
Thanks for reading the post.
This is possible with ConstraintSet. They key is two have two layouts one layout has ui elements of the screen and the other has elements on the screen. Now you can use TransitionManager with interpolator and duration of your choice and animate the layout changes.
activity_main.xml
<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout
android:id="#+id/constraint"
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="#181818"
tools:context=".MainActivity">
<ImageView
android:id="#+id/backgroundImage"
android:layout_width="0dp"
android:layout_height="0dp"
android:src="#drawable/mugello"
android:scaleType="centerCrop"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toTopOf="parent"/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="JUNE 3, 2018"
app:layout_constraintRight_toRightOf="#+id/title"
app:layout_constraintBottom_toBottomOf="#+id/title"
android:textSize="12sp"
android:background="#d3d3d3"
android:paddingStart="16dp"
android:paddingEnd="16dp"
android:paddingTop="3dp"
android:paddingBottom="3dp"/>
<TextView
android:id="#+id/title"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="48dp"
android:background="#F44336"
android:paddingBottom="8dp"
android:paddingEnd="24dp"
android:paddingStart="24dp"
android:paddingTop="8dp"
android:text="Mugello Circuit"
android:textColor="#FFFF"
android:textSize="45sp"
app:layout_constraintRight_toLeftOf="#+id/backgroundImage"
app:layout_constraintTop_toTopOf="parent" />
<View
android:id="#+id/fadeBackgroudView"
android:layout_width="wrap_content"
android:layout_height="90dp"
android:foreground="#drawable/gradient_variant"
app:layout_constraintBottom_toTopOf="#+id/description" />
<TextView
android:id="#+id/tap"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginBottom="12dp"
android:layout_marginEnd="8dp"
android:layout_marginStart="8dp"
android:text="Tap for info"
android:textSize="15sp"
android:textColor="#ffffff"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent" />
<TextView
android:id="#+id/description"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="The Mugello is a historic region and valley in northern Tuscany, in Italy. It is located to the north of the city of Florence and consists of the northernmost portion of the Metropolitan City of Florence. It is connected to the separate Santerno river valley by the Futa Pass."
android:textSize="22sp"
android:textColor="#FFFF"
android:background="#181818"
android:gravity="center"
android:paddingStart="8dp"
android:paddingEnd="8dp"
android:paddingBottom="8dp"
app:layout_constraintTop_toBottomOf="#+id/backgroundImage"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"/>
</android.support.constraint.ConstraintLayout>
activity_main_detail.xml
<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout 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"
tools:context=".MainActivity">
<ImageView
android:id="#+id/backgroundImage"
android:layout_width="0dp"
android:layout_height="0dp"
android:scaleType="centerCrop"
android:src="#drawable/mugello"
app:layout_constraintBottom_toTopOf="#+id/description"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toTopOf="parent" />
<TextView
android:id="#+id/title"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="48dp"
android:background="#F44336"
android:paddingBottom="8dp"
android:paddingEnd="24dp"
android:paddingStart="24dp"
android:paddingTop="8dp"
android:text="Mugello Circuit"
android:textColor="#FFFF"
android:textSize="45sp"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintTop_toTopOf="parent" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="JUNE 3, 2018"
app:layout_constraintRight_toRightOf="#+id/title"
app:layout_constraintTop_toBottomOf="#+id/title"
android:textSize="12sp"
android:background="#d3d3d3"
android:paddingStart="16dp"
android:paddingEnd="16dp"
android:paddingTop="3dp"
android:paddingBottom="3dp"/>
<View
android:id="#+id/fadeBackgroudView"
android:layout_width="wrap_content"
android:layout_height="30dp"
android:foreground="#drawable/gradient"
app:layout_constraintBottom_toTopOf="#+id/description" />
<TextView
android:id="#+id/tap"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginBottom="8dp"
android:layout_marginEnd="8dp"
android:layout_marginStart="8dp"
android:text="Tap for info"
android:textSize="15sp"
android:textColor="#ffffff"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent" />
<TextView
android:id="#+id/description"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="The Mugello is a historic region and valley in northern Tuscany, in Italy. It is located to the north of the city of Florence and consists of the northernmost portion of the Metropolitan City of Florence. It is connected to the separate Santerno river valley by the Futa Pass."
android:textSize="22sp"
android:textColor="#FFFF"
android:gravity="center"
android:background="#181818"
android:paddingStart="8dp"
android:paddingEnd="8dp"
android:paddingBottom="8dp"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"/>
</android.support.constraint.ConstraintLayout>
MainActivity.java
public class MainActivity extends AppCompatActivity {
private boolean show = false;
private ImageView backgroundImage;
private ConstraintLayout constraint;
private ConstraintSet constraintSet = new ConstraintSet();
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
constraint = findViewById(R.id.constraint);
backgroundImage = findViewById(R.id.backgroundImage);
backgroundImage.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
if(show)
hideComponents(); // if the animation is shown, we hide back the views
else
showComponents() ;// if the animation is NOT shown, we animate the views
}
});
}
private void showComponents(){
show = true;
constraintSet.clone(this, R.layout.activity_main_detail);
Transition transition = new ChangeBounds();
transition.setInterpolator(new AnticipateOvershootInterpolator(1.0f));
transition.setDuration(1000);
TransitionManager.beginDelayedTransition(constraint, transition);
constraintSet.applyTo(constraint);
}
private void hideComponents(){
show = false;
constraintSet.clone(this, R.layout.activity_main);
Transition transition = new ChangeBounds();
transition.setInterpolator(new AnticipateOvershootInterpolator(1.0f));
transition.setDuration(1000);
TransitionManager.beginDelayedTransition(constraint, transition);
constraintSet.applyTo(constraint);
}
}
Here's a slide share on ConstraintLayout https://speakerdeck.com/camaelon/advanced-animations-and-constraintlayout