I'm a beginner in android app making and I'm trying to do an app for a project. I found this tutorial and I'm currently trying to put to apps together in android studio. Both are reminders apps, however the second one (the food one), the FAB is not working it register the touch but when it does it says APP keeps stopping. If anybody can help me I'll appreciated.
First Reminder .java
public class MedicineActivity extends AppCompatActivity {
@BindView(R.id.compactcalendar_view)
CompactCalendarView mCompactCalendarView;
@BindView(R.id.date_picker_text_view)
TextView datePickerTextView;
@BindView(R.id.date_picker_button)
RelativeLayout datePickerButton;
@BindView(R.id.toolbar)
Toolbar toolbar;
@BindView(R.id.collapsingToolbarLayout)
CollapsingToolbarLayout collapsingToolbarLayout;
@BindView(R.id.app_bar_layout)
AppBarLayout appBarLayout;
@BindView(R.id.contentFrame)
FrameLayout contentFrame;
@BindView(R.id.fab_add_task)
FloatingActionButton fabAddTask;
@BindView(R.id.coordinatorLayout)
CoordinatorLayout coordinatorLayout;
@BindView(R.id.date_picker_arrow)
ImageView arrow;
private MedicinePresenter presenter;
private SimpleDateFormat dateFormat = new SimpleDateFormat("MMM dd", /*Locale.getDefault()*/Locale.ENGLISH);
private boolean isExpanded = false;
public ImageButton imageButton;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_medicine);
ButterKnife.bind(this);
setSupportActionBar(toolbar);
imageButton = (ImageButton) findViewById(R.id.image2button);
imageButton.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
Intent intent= new Intent(MedicineActivity.this,dashboard_screen.class);
startActivity(intent);
}
});
mCompactCalendarView.setLocale(TimeZone.getDefault(), /*Locale.getDefault()*/Locale.ENGLISH);
mCompactCalendarView.setShouldDrawDaysHeader(true);
mCompactCalendarView.setListener(new CompactCalendarView.CompactCalendarViewListener() {
@Override
public void onDayClick(Date dateClicked) {
setSubtitle(dateFormat.format(dateClicked));
Calendar calendar = Calendar.getInstance();
calendar.setTime(dateClicked);
int day = calendar.get(Calendar.DAY_OF_WEEK);
if (isExpanded) {
ViewCompat.animate(arrow).rotation(0).start();
} else {
ViewCompat.animate(arrow).rotation(180).start();
}
isExpanded = !isExpanded;
appBarLayout.setExpanded(isExpanded, true);
presenter.reload(day);
}
@Override
public void onMonthScroll(Date firstDayOfNewMonth) {
setSubtitle(dateFormat.format(firstDayOfNewMonth));
}
});
setCurrentDate(new Date());
MedicineFragment medicineFragment = (MedicineFragment) getSupportFragmentManager().findFragmentById(R.id.contentFrame);
if (medicineFragment == null) {
medicineFragment = MedicineFragment.newInstance();
ActivityUtils.addFragmentToActivity(getSupportFragmentManager(), medicineFragment, R.id.contentFrame);
}
//Create MedicinePresenter
presenter = new MedicinePresenter(Injection.provideMedicineRepository(MedicineActivity.this), medicineFragment);
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.medicine_menu, menu);
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
if (item.getItemId() == R.id.menu_stats) {
Intent intent = new Intent(this, MonthlyReportActivity.class);
startActivity(intent);
}
return super.onOptionsItemSelected(item);
}
public void setCurrentDate(Date date) {
setSubtitle(dateFormat.format(date));
mCompactCalendarView.setCurrentDate(date);
}
public void setSubtitle(String subtitle) {
datePickerTextView.setText(subtitle);
}
@OnClick(R.id.date_picker_button)
void onDatePickerButtonClicked() {
if (isExpanded) {
ViewCompat.animate(arrow).rotation(0).start();
} else {
ViewCompat.animate(arrow).rotation(180).start();
}
isExpanded = !isExpanded;
appBarLayout.setExpanded(isExpanded, true);
}
}
First Reminder XML File
<?xml version="1.0" encoding="utf-8"?>
<androidx.coordinatorlayout.widget.CoordinatorLayout 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/coordinatorLayout"
android:layout_width="match_parent"
android:layout_height="match_parent">
<com.google.android.material.appbar.AppBarLayout
android:id="@ id/app_bar_layout"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:fitsSystemWindows="true"
android:theme="@style/AppTheme.AppBarOverlay"
app:expanded="false"
app:layout_behavior="com.gautam.medicinetime.utils.ScrollingCalendarBehavior">
<com.google.android.material.appbar.CollapsingToolbarLayout
android:id="@ id/collapsingToolbarLayout"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true"
android:minHeight="?attr/actionBarSize"
app:contentScrim="?attr/colorPrimary"
app:titleEnabled="false"
app:layout_scrollFlags="scroll|exitUntilCollapsed"
app:statusBarScrim="?attr/colorPrimaryDark">
<LinearLayout
android:id="@ id/compactcalendar_view_container"
android:layout_width="match_parent"
android:layout_height="250dp"
android:paddingTop="?attr/actionBarSize"
app:layout_collapseMode="parallax"
app:layout_collapseParallaxMultiplier="1.0">
<com.github.sundeepk.compactcalendarview.CompactCalendarView
android:id="@ id/compactcalendar_view"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:paddingLeft="10dp"
android:paddingRight="10dp"
app:compactCalendarBackgroundColor="?attr/colorPrimary"
app:compactCalendarCurrentDayBackgroundColor="#FFC107"
app:compactCalendarCurrentSelectedDayBackgroundColor="#BBDEFB"
app:compactCalendarTextColor="#fff"
app:compactCalendarTextSize="12sp" />
</LinearLayout>
<androidx.appcompat.widget.Toolbar
android:id="@ id/toolbar"
style="@style/ToolbarStyle"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
app:layout_collapseMode="pin"
app:popupTheme="@style/AppTheme.PopupOverlay">
<RelativeLayout
android:id="@ id/date_picker_button"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:background="?android:selectableItemBackground"
android:gravity="center_vertical"
android:clickable="true"
android:focusable="true"
android:orientation="vertical">
<TextView
android:id="@ id/date_picker_text_view"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:ellipsize="end"
android:maxLines="1"
android:textStyle="bold"
android:textSize="18sp"
android:textColor="@android:color/white" />
<ImageView
android:id="@ id/date_picker_arrow"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignBottom="@id/date_picker_text_view"
android:layout_toRightOf="@id/date_picker_text_view"
app:srcCompat="@drawable/ic_arrow_drop_down"
tools:ignore="ContentDescription,RtlHardcoded" />
</RelativeLayout>
</androidx.appcompat.widget.Toolbar>
</com.google.android.material.appbar.CollapsingToolbarLayout>
</com.google.android.material.appbar.AppBarLayout>
<RelativeLayout
android:id="@ id/relativeLayout2"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:backgroundTint="@color/design_default_color_background">
<androidx.constraintlayout.widget.ConstraintLayout
android:layout_width="match_parent"
android:layout_height="match_parent">
<ImageButton
android:id="@ id/image2button"
android:layout_width="48dp"
android:layout_height="50dp"
android:background="@drawable/roundbutton"
android:src="@drawable/menu_icon"
android:text="Button"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.046"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintVertical_bias="0.976" />
</androidx.constraintlayout.widget.ConstraintLayout>
</RelativeLayout>
<com.google.android.material.floatingactionbutton.FloatingActionButton
android:id="@ id/fab_add_task"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_margin="@dimen/sixteen_dp"
app:fabSize="normal"
app:layout_anchor="@ id/relativeLayout2"
app:layout_anchorGravity="end|bottom"
app:srcCompat="@drawable/ic_add" />
<FrameLayout
android:id="@ id/contentFrame"
android:layout_width="match_parent"
android:layout_height="674dp"
app:layout_behavior="@string/appbar_scrolling_view_behavior" />
</androidx.coordinatorlayout.widget.CoordinatorLayout>
Second Remider .java
public class FoodActivity extends AppCompatActivity {
FloatingActionButton mCreateRem;
RecyclerView mRecyclerview;
ArrayList<Model> dataholder = new ArrayList<Model>();
//Array list to add reminders and display in recyclerview
myAdapter adapter;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_food);
mRecyclerview = (RecyclerView) findViewById(R.id.recyclerView_food);
mRecyclerview.setLayoutManager(new LinearLayoutManager(getApplicationContext()));
mCreateRem = (FloatingActionButton) findViewById(R.id.create_reminder);
//Floating action button to change activity
mCreateRem.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
Intent intent = new Intent(getApplicationContext(), FoodAddReminder.class);
startActivity(intent);
//Starts the new activity to add Reminders
}
});
Cursor cursor = new dbManager(getApplicationContext()).readallreminders();
//Cursor To Load data From the database
while (cursor.moveToNext()) {
Model model = new Model (cursor.getString(1), cursor.getString(2), cursor.getString(3));
dataholder.add(model);
}
adapter = new myAdapter(dataholder);
mRecyclerview.setAdapter(adapter);
//Binds the adapter with recyclerview
}
@Override
public void onBackPressed() {
finish();
//Makes the user to exit from the app
super.onBackPressed();
}
}
Second Reminder 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"
tools:context=".FoodActivity"
android:id="@ id/Food_Container">
<androidx.appcompat.widget.Toolbar
android:id="@ id/FoodToolbar"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="@color/yellow_light"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.0"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:title="What's on you firdge?" />
<androidx.recyclerview.widget.RecyclerView
android:id="@ id/recyclerView_food"
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_marginTop="8dp"
android:visibility="invisible"
app:layout_constraintBaseline_toBottomOf="parent"
app:layout_constraintTop_toBottomOf="@id/FoodToolbar"
tools:layout_editor_absoluteX="-4dp" />
<TextView
android:id="@ id/textView4"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:gravity="center"
android:text="No food reminder added\n Add now"
android:textAlignment="center"
android:textSize="18dp"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="@ id/recyclerView_food"
app:layout_constraintStart_toStartOf="@ id/recyclerView_food"
app:layout_constraintTop_toBottomOf="@ id/FoodToolbar"
app:layout_constraintVertical_bias="0.523"
android:visibility="gone"
/>
<ImageView
android:layout_width="379dp"
android:layout_height="46dp"
android:src="@drawable/food_icon"
app:layout_constraintBottom_toTopOf="@ id/textView4"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="@ id/FoodToolbar"
app:layout_constraintVertical_bias="0.966"
android:visibility="gone"
/>
<com.google.android.material.floatingactionbutton.FloatingActionButton
android:id="@ id/create_reminder"
android:layout_width="65dp"
android:layout_height="56dp"
android:src="@drawable/ic_baseline_add_24"
app:backgroundTint="@color/yellow_light"
app:layout_anchorGravity="right|bottom"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.928"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintVertical_bias="0.961" />
</androidx.constraintlayout.widget.ConstraintLayout>
CodePudding user response：
You can not use applicationcontext in here, but if you want you need to add flags to the intent. So easier method for you to use "this" instead:
mCreateRem.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
Intent intent = new Intent(this, FoodAddReminder.class);
startActivity(intent);
//Starts the new activity to add Reminders
}
});
CodePudding user response：
We can only "guess" why, but "not working" and "app keeps stopping" could mean a lot of things and you didn't provide any Log information or an Exception stacktrace. Its also hard to guess what FoodAddReminder.class is, if its an activity, make sure its declared in your AndroidManifest.xml
mCreateRem.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
Intent intent = new Intent(this, FoodAddReminder.class); // <-- is this an activity?
startActivity(intent);
//Starts the new activity to add Reminders
}
});
Check your AndroidManifest.xml
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.me.my.project">
<application >
<activity
android:name=".FoodAddReminder"/> <!-- here -->
</application>
</manifest>
If that is not the issue, I suspect that using getApplicationContext(), you're having this crashlog
AndroidRuntimeException: Calling startActivity() from outside of an Activity context requires the FLAG_ACTIVITY_NEW_TASK flag. Is this really what you want?
You should then tell the system you want to start a new task,
public void onClick(View v) {
Intent intent = new Intent(getApplicationContext(), FoodAddReminder.class);
intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
startActivity(intent);
}
But I would suggest not doing it, instead use your FoodActivity as your calling activity to FoodReminder in this case, and pay attention to this, it should be prefixed with FoodActivity otherwise you will refer to your enclosing anonymous OnClickListener scope.
@Override
public void onClick(View v) {
Intent intent = new Intent(FoodActivity.this, FoodAddReminder.class);
startActivity(intent);
}
If none of these solved your "not working" issue, please provide a more specific Log information and reduce your code to something that is copy-and-paste-able.