Develop Reference

Canhub image is not shown

I use canhub to crop image. Even I load the image, it is not shown. When I log the uri or canhub imageviewer, it is not null. I added the permissions and checked manually, there is no problem about permissions.
My main_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"
tools:context=".MainActivity">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Hello World!"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toTopOf="parent" />
<com.canhub.cropper.CropImageView
android:id="#+id/CropImageView"
android:layout_width="400dp"
android:layout_height="400dp"
android:layout_weight="1"
tools:ignore="MissingConstraints"
tools:layout_editor_absoluteX="5dp"
tools:layout_editor_absoluteY="61dp" />
</androidx.constraintlayout.widget.ConstraintLayout>
and MainActivity.java
public class MainActivity extends AppCompatActivity {
CropImageView mCropImageView;
Uri mCropImageUri;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
mCropImageView = (CropImageView)findViewById(R.id.CropImageView);
//ImageView test = findViewById(R.id.test);
Uri uri = Uri.parse("android.resource://com.example.testaygaz/drawable/bird.jpg");
Log.i("MainActivity",mCropImageView.toString());
//test.setImageURI(uri);
mCropImageView.setImageUriAsync(uri);
}
}

Android App crash when using custom Listview and logcat doesnt show anything

I'm creating a Listview that shows the names of the days in a week. The app crashes and the logcat doesn't show anything. How to solve this issue?
MainActivity.java
public class MainActivity extends AppCompatActivity {
private static final String TAG = "MainActivity";
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
ListView lv_classTimetable = (ListView) findViewById(R.id.lv_classTimetable);
ArrayList<String> lvDays = new ArrayList<>();
lvDays.add("Monday");
lvDays.add("Tuesday");
lvDays.add("Wednesday");
lvDays.add("Thursday");
lvDays.add("Friday");
lvDays.add("Saturday");
lvDays.add("Sunday");
ArrayAdapter classListAdapter = new ArrayAdapter(MainActivity.this, R.layout.class_timetable_listview_layout, lvDays);
lv_classTimetable.setAdapter(classListAdapter);
}
}
activity_main.xml
<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:padding="16dp"
tools:context=".MainActivity">
<ListView
android:id="#+id/lv_classTimetable"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_alignParentTop="true"
android:layout_alignParentStart="true"
android:dividerHeight="5dp"
android:divider="#d1d1d1"></ListView>
</RelativeLayout>
class_timetable_listview_layout.xml this is the layout for the custom listview
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="horizontal"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_margin="10dp">
<TextView
android:id="#+id/lv_day"
android:gravity="center"
android:textAlignment="center"
android:text="Day"
android:textStyle="bold"
android:textSize="35sp"
android:layout_width="match_parent"
android:layout_height="60dp"/>
</LinearLayout>

Credit to #Mike M. Solution:
The LinearLayout should change to TextView. class_timetable_listview_layout.xml should change to
<TextView xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="horizontal"
android:layout_width="match_parent"
android:layout_height="76dp"
android:layout_margin="10dp"
android:gravity="center"
android:textAlignment="center"
android:text="Day"
android:textStyle="bold"
android:textSize="35sp">
</TextView>
MainActivity.java
ArrayAdapter classListAdapter = new ArrayAdapter(this, R.layout.class_timetable_listview_layout, lvDays );
lv_classTimetable.setAdapter(classListAdapter);

setOnItemClickListener() not working on ExpandableHeightGridView in Fragment

Hello good morning in my view i cant handled the setOnItemClickListener
I am trying to create an application which dynamically lists installed applications in a gridview.I am able to display the applications in a gridview form but not able to make these items clickable. Nothing happens when i click these items. The code inside the setOnItemClickListener does not get triggered on click event.
<?xml version="1.0" encoding="utf-8"?>
<FrameLayout 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=".Tab2profile">
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:ignore="UselessParent">
//my scrollview
<ScrollView
android:layout_width="match_parent"
android:fillViewport="true"
android:layout_height="match_parent">
<RelativeLayout
android:id="#+id/MainRLyout"
android:layout_width="match_parent"
android:orientation="vertical"
android:layout_height="wrap_content">
<RelativeLayout
android:id="#+id/girislayout"
android:layout_alignParentTop="true"
android:layout_width="match_parent"
android:layout_height="wrap_content">
<TextView
android:id="#+id/usernameTv"
android:layout_alignParentStart="true"
android:layout_width="wrap_content"
android:layout_margin="10dp"
android:layout_centerVertical="true"
android:textSize="#dimen/text_size_Orta"
android:textColor="#color/cardview_dark_background"
android:layout_height="wrap_content"
tools:ignore="PrivateResource" />
<Button
android:id="#+id/Login_LogOut_Button"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:minHeight="0dp"
android:layout_centerVertical="true"
android:layout_alignParentEnd="true"
android:layout_marginStart="5dp"
android:layout_marginLeft="5dp"
android:layout_marginEnd="5dp"
android:background="#drawable/logout_rounded"
android:drawableRight="#drawable/logout_icon"
android:padding="0dp"
android:text="#string/Logout_Text_str"
android:textColor="#android:color/white"
android:textSize="12sp"
tools:ignore="RelativeOverlap,RtlHardcoded" />
</RelativeLayout>
//in here i cant handled the item click funktşon
<syr13.comapp4.Custum_Adapters.ExpandableHeightGridView
android:id="#+id/Your_Apps_Li"
android:numColumns="3"
android:layout_below="#id/Your_Apps_Tv"
android:horizontalSpacing="6dp"
android:layout_margin="5dp"
android:verticalSpacing="6dp"
android:gravity="center"
android:layout_width="match_parent"
android:layout_height="match_parent">
</syr13.comapp4.Custum_Adapters.ExpandableHeightGridView>
</RelativeLayout>
</ScrollView>
</RelativeLayout>
</FrameLayout>

I think you can Change your Code
from
button.setOnItemClickListener(this);
To
button.setOnClickListener(this);
for example :-
public class MainActivity extends AppCompatActivity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Button button = findViewById(R.id.button);
button.setOnClickListener(this);
}
#Override
public void onClick(View v) {
switch (v.getId())
{
case R.id.button:
//Do Something
break;
}
}
}

SwipeToRefreshview swipe error

I have a swipe to refresh view and a listview within in the swipe to refresh view
<?xml version="1.0" encoding="utf-8"?>
<android.support.v4.widget.SwipeRefreshLayout
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/refreshView"
android:layout_width="match_parent"
android:layout_height="wrap_content">
<android.support.constraint.ConstraintLayout
android:layout_width="match_parent"
android:layout_height="match_parent">
<TextView
android:id="#+id/txtEmpty"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="No data available"
android:layout_marginBottom="0dp"
android:layout_marginLeft="0dp"
android:textSize="20sp"
android:visibility="gone"
android:layout_marginRight="0dp"
android:layout_marginTop="0dp"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toTopOf="parent">
</TextView>
<ListView
android:id="#+id/ArrayList"
android:layout_width="0dp"
android:layout_height="0dp"
android:layout_marginTop="0dp"
app:layout_constraintTop_toTopOf="parent"
android:layout_marginRight="0dp"
app:layout_constraintRight_toRightOf="parent"
android:layout_marginLeft="0dp"
app:layout_constraintLeft_toLeftOf="parent"
android:layout_marginBottom="0dp"
app:layout_constraintBottom_toBottomOf="parent">
</ListView>
</android.support.constraint.ConstraintLayout>
</android.support.v4.widget.SwipeRefreshLayout>
I can scroll down the list but when i want to go back up, the swipe to refresh kicks in and I got to be able to view the entire list, any recommendations ??
and this is the implementation for the listener
srl = (SwipeRefreshLayout) view.findViewById(R.id.refreshView);
srl.setOnRefreshListener(srfListener());
function for listener
protected SwipeRefreshLayout.OnRefreshListener srfListener() {
return new SwipeRefreshLayout.OnRefreshListener() {
#Override
public void onRefresh() {
update();
}
};
}
and update function
#Override
protected void update() {
HomeActivity.getInstance().onResume();
srl.setRefreshing(false);
}

Use like this
<android.support.v4.widget.SwipeRefreshLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/swipe_refresh_layout"
android:layout_width="match_parent"
android:layout_height="match_parent">
<ListView
android:id="#+id/ArrayList"
android:scrollbars="vertical"
android:paddingBottom="85dp"
android:clipToPadding="false"
android:layout_width="match_parent"
android:layout_height="wrap_content"/>
</android.support.v4.widget.SwipeRefreshLayout>

<android.support.v4.widget.SwipeRefreshLayout
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/refreshView"
android:layout_width="match_parent"
android:layout_height="wrap_content">
<ListView
android:id="#+id/ArrayList"
android:layout_width="0dp"
android:layout_height="0dp"
android:layout_marginTop="0dp"
app:layout_constraintTop_toTopOf="parent"
android:layout_marginRight="0dp"
app:layout_constraintRight_toRightOf="parent"
android:layout_marginLeft="0dp"
app:layout_constraintLeft_toLeftOf="parent"
android:layout_marginBottom="0dp"
app:layout_constraintBottom_toBottomOf="parent">
</ListView>
</android.support.v4.widget.SwipeRefreshLayout>
Swipe refresh view should only wrap around the listview/recyclerViews .....not around the parent view

Try this:
srl.setOnRefreshListener(new SwipeRefreshLayout.OnRefreshListener()
{
#Override
public void onRefresh()
{
update();
}
});
instead of this:
protected SwipeRefreshLayout.OnRefreshListener srfListener() {
return new SwipeRefreshLayout.OnRefreshListener() {
#Override
public void onRefresh() {
update();
}
};
}
Xml:
Take Linear layout instead of ConstraintLayout.

how to add bottom layout in Modal BottomSheet Dialog?

I want to achieve the design like this using BottomSheetDialogFragment. But the problem is the bottom layout get scrolled when i drag. I want the bottom layout always in bottom until the BottomSheetDialogFragment gets dismissed.
Please find the screenshot
Here is my code
bottomsheet_layout.xml
<?xml version="1.0" encoding="utf-8"?>
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/activity_main"
android:layout_width="match_parent"
android:layout_height="match_parent">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent">
<!--The main content goes over here-->
</LinearLayout>
<!--The footer view-->
<LinearLayout
android:id="#+id/footer_purchase_layout"
android:layout_width="match_parent"
android:layout_height="52dp"
android:layout_gravity="bottom"
android:orientation="horizontal"
android:weightSum="1">
<TextView
android:id="#+id/txt_cancel_purchase"
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_weight="0.5"
android:gravity="left|center_vertical"
android:text="CLOSE"
android:textSize="14sp" />
<TextView
android:id="#+id/txt_item_purchase_action"
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_weight="0.5"
android:gravity="right|center_vertical"
android:text="ADD STICKERS"
android:textSize="14sp" />
</LinearLayout>
</FrameLayout>
ModalBottomSheetFragment.java
public class ModalBottomSheetFragment extends BottomSheetDialogFragment {
public ModalBottomSheetFragment() {}
private BottomSheetBehavior.BottomSheetCallback mBottomSheetBehaviorCallback = new BottomSheetBehavior.BottomSheetCallback() {
#Override
public void onStateChanged(#NonNull View bottomSheet, int newState) {
if (newState == BottomSheetBehavior.STATE_HIDDEN) {
dismiss();
}
}
#Override
public void onSlide(#NonNull View bottomSheet, float slideOffset) {}
};
#TargetApi(Build.VERSION_CODES.LOLLIPOP_MR1)
#Override
public void setupDialog(Dialog dialog, int style) {
super.setupDialog(dialog, style);
View mContentView = View.inflate(getContext(), R.layout.bottomsheet_layout, null);
dialog.setContentView(mContentView);
CoordinatorLayout.LayoutParams layoutParams =
(CoordinatorLayout.LayoutParams) ((View) mContentView.getParent()).getLayoutParams();
CoordinatorLayout.Behavior mBehavior = layoutParams.getBehavior();
if (mBehavior != null && mBehavior instanceof BottomSheetBehavior) {
((BottomSheetBehavior) mBehavior).setBottomSheetCallback(mBottomSheetBehaviorCallback);
int height = getScreenHeight(getActivity());
final double desiredHeight = 0.85 * height;
mContentView.getLayoutParams().height = height;
((BottomSheetBehavior) mBehavior).setPeekHeight((int) desiredHeight);
}
}
public static int getScreenHeight(Context ctx) {
DisplayMetrics metrics = ctx.getResources().getDisplayMetrics();
return metrics.heightPixels;
}
}
MainActivity.java
public class MainActivity extends AppCompatActivity {
private Button mShowBottomSheetDialog;
private BottomSheetDialogFragment bottomSheetDialogFragment;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
mShowBottomSheetDialog = (Button) findViewById(R.id.showBottomSheet);
mShowBottomSheetDialog.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
bottomSheetDialogFragment = new ModalBottomSheetFragment();
bottomSheetDialogFragment.show(getSupportFragmentManager(), bottomSheetDialogFragment.getTag());
}
});
}
}

use this layout instead of your layout ....
<?xml version="1.0" encoding="utf-8"?>
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/activity_main"
android:layout_width="match_parent"
android:layout_height="match_parent">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<ScrollView
android:layout_width="match_parent"
android:layout_height="match_parent">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="10"
android:orientation="vertical">
<!--The main content goes over here-->
</LinearLayout>
</ScrollView>
<!--The footer view-->
<LinearLayout
android:id="#+id/footer_purchase_layout"
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="1"
android:orientation="horizontal"
android:weightSum="1">
<TextView
android:id="#+id/txt_cancel_purchase"
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_weight="0.5"
android:gravity="left|center_vertical"
android:text="CLOSE"
android:textSize="14sp" />
<TextView
android:id="#+id/txt_item_purchase_action"
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_weight="0.5"
android:gravity="right|center_vertical"
android:text="ADD STICKERS"
android:textSize="14sp" />
</LinearLayout>
</LinearLayout>
</FrameLayout>
Note:- Weight divide your Layout into different View which is constant in your layout ......

use this layout:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout 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="#android:color/white"
android:orientation="vertical">
<androidx.appcompat.widget.Toolbar
android:id="#+id/toolbar"
android:layout_width="match_parent"
android:layout_height="?android:actionBarSize"
app:contentInsetEnd="0dp"
app:contentInsetStart="0dp">
<FrameLayout
android:layout_width="match_parent"
android:layout_height="match_parent">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:text="Title"
android:textSize="18sp" />
</FrameLayout>
</androidx.appcompat.widget.Toolbar>
<androidx.core.widget.NestedScrollView
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="1">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="200dp">
<!--your content here-->
</LinearLayout>
</androidx.core.widget.NestedScrollView>
<FrameLayout
android:id="#+id/bottomView"
android:layout_width="match_parent"
android:layout_height="70dp">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:text="Footer"
android:textSize="18sp"/>
</FrameLayout>
</LinearLayout>