Develop Reference

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;
}
}
}

Android onClick on Linear Layout

I have following code:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/list_item"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_margin="10dp"
android:orientation="horizontal"
android:clickable="true"
android:onClick="openGithubUrl">
<ImageView
android:layout_width="100dp"
android:layout_height="100dp"
android:src="#mipmap/github_icon"/>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical">
<TextView
android:id="#+id/github_name"
android:layout_width="match_parent"
android:layout_height="wrap_content" />
<TextView
android:id="#+id/github_url"
android:layout_width="match_parent"
android:layout_height="wrap_content" />
</LinearLayout>
</LinearLayout>
I want to add a onCLick listener on LinearLayout(#+id/list-item). Is this possible? After the onClick fired I would like to get the content of the child Textview #+id/github_url.

Yes you can set an onClickListener to the linear layout, in your use case,
listItem.setOnClickListener() in the activity.
LinearLayout listItem;
TextView tvGithubUrl;
tvGithubUrl = (TextView) findViewById(R.id.github_url)
listItem = (LinearLayout) findViewById(R.id.list_item)
listItem.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
//Get the github_url text here
tvGithubUrl.getText().toString();
}
});

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>

ViewPagerIndicator not showing up

I am using JakeWharton's ViewPagerIndicator on my landscape app but I think I am messing up with the layout. The ViewPagerIndicator does not show up. I just started learning Android Development so any help is appreciated!
My guess is that it has to do with my Linear Layout...should it be relative? Am I covering up the pager indicator? I know that if I move the indicator code above the view pager, I see the indicator but everything else is white. My fragment's layout is a relative layout with height and width matching the parent.
My app is an activity with fragments.
Edit: I set the indicator height to wrap content but now it floats on the top of the screen. How do I make it go down?
My_Activity.java
public class MyActivity extends FragmentActivity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_my);
ViewPager pager = (ViewPager) findViewById(R.id.viewPager);
MyPagerAdapter mAdapter = new MyPagerAdapter(getSupportFragmentManager());
pager.setAdapter(mAdapter);
CirclePageIndicator circleInd = (CirclePageIndicator) findViewById(R.id.circles);
circleInd.setViewPager(pager);
circleInd.setStrokeColor(0xAA000000);
//circleInd.setCurrentItem(mAdapter.getCount() - 1);
}
private class MyPagerAdapter extends FragmentPagerAdapter {
public MyPagerAdapter(FragmentManager fm) {
super(fm);
}
#Override
public Fragment getItem(int pos) {
switch (pos) {
case 0: return FirstFragment.newInstance("First");
case 1: return SecondFragment.newInstance("Second");
default: return FirstFragment.newInstance("First");
}
}
#Override
public int getCount() {
return 2;
}
}
}
and the XML
<?xml version="1.0" encoding="utf-8"?>
<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"
tools:context="com.example.frontrowqa.myfirstapplication.MyActivity">
<android.support.v4.view.ViewPager
android:id="#+id/viewPager"
android:layout_width="match_parent"
android:layout_height="wrap_content">
</android.support.v4.view.ViewPager>
<com.viewpagerindicator.CirclePageIndicator
android:id="#+id/circles"
android:layout_height="wrap_content"
android:layout_width="match_parent"
android:padding="10dp"
android:layout_gravity="bottom" />
</LinearLayout>
And my fragment
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:padding="20dp">
<EditText
android:id="#+id/PasscodeText"
android:layout_height="wrap_content"
android:inputType="textPersonName"
android:layout_width="fill_parent"
android:hint="Passcode"
android:backgroundTint="#android:color/black" />
<EditText
android:id="#+id/ipAddressText"
android:layout_below="#id/PasscodeText"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:hint="IP Address"
android:backgroundTint="#android:color/black" />
<EditText
android:id="#+id/intercomText"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_below="#id/ipAddressText"
android:hint="Intercom Event Number"
android:backgroundTint="#android:color/black"/>
<TextView
android:id="#+id/tvFragFirst"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerHorizontal="true"
android:layout_centerVertical="true"
android:textSize="26dp"
android:text="TextView" />
</RelativeLayout>

Set your activity xml like this:
<?xml version="1.0" encoding="utf-8"?>
<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">
<android.support.v4.view.ViewPager
android:id="#+id/viewPager"
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="1" />
<com.viewpagerindicator.CirclePageIndicator
android:id="#+id/circles"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="bottom"
android:padding="10dp" />
</LinearLayout>

Get only top part of camera

I am stuck at this Issue since couple of days. What I want is only part of the camera to be shown on screen. This is what I want:
This is what I have done:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="200dp">
<ScrollView
android:id="#+id/scrollView"
android:layout_width="match_parent"
android:layout_height="160dp"
android:scrollbars="none"
android:fillViewport="true"
>
<LinearLayout
android:id="#+id/linearLayoutBeautyContent"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical">
<SurfaceView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="#+id/surfaceViewBeautyCamera"/>
</LinearLayout>
</ScrollView>
<TextView
android:id="#+id/scanText"
android:text="Scanning..."
android:layout_height="wrap_content"
android:layout_width="match_parent">
</TextView>
</LinearLayout>
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
final LayoutInflater inflator = getLayoutInflater();
final LinearLayout inflate = (LinearLayout) inflator.inflate(R.layout.main, null);
final SurfaceView surfaceView = (SurfaceView) inflate.findViewById(R.id.surfaceViewBeautyCamera);
final SurfaceHolder holder = surfaceView.getHolder();
WindowManager mW = (WindowManager) getSystemService(Context.WINDOW_SERVICE);
int screenWidth = mW.getDefaultDisplay().getWidth();
int screenHeight = mW.getDefaultDisplay().getHeight();
final ViewGroup.LayoutParams slayout = surfaceView.getLayoutParams();
slayout.width = screenWidth;
slayout.height = screenHeight;
surfaceView.requestLayout();
final ScrollView beautyContent = (ScrollView) inflate.findViewById(R.id.scrollView);
holder.addCallback(new SurfaceHolder.Callback() {
#Override
public void surfaceCreated(SurfaceHolder holder) {
try {
camera = getCamera();
camera.setPreviewDisplay(holder);
camera.setDisplayOrientation(90);
camera.startPreview();
} catch (IOException e) {
Log.i("Lucy", e.getMessage());
}
}
#Override
public void surfaceChanged(SurfaceHolder holder, int format, int width, int height) {}
#Override
public void surfaceDestroyed(SurfaceHolder holder) {
}
});
addContentView(inflate, new LinearLayout.LayoutParams(LinearLayout.LayoutParams.MATCH_PARENT, LinearLayout.LayoutParams.WRAP_CONTENT));
}
public Camera getCamera() {
try {
final Camera open = Camera.open();
return open;
} catch (Exception ex) {
Log.i("Lucy", ex.getMessage());
return null;
}
}
When i do this I get:
The Idea is to set the size of SurfaceView as full screen but reduce the size of scroll view. But what I want is the first Image. What am I doing wrong?
Observations:
When I scroll the view up completely. Go back to Home Screen and open the app again. i get the first image. But if I scroll again and go back to main to come back, i get the second Image.
Any other strategy?
PS:
1. Having other view on top of camera is also option, but I cannot use it for lengthy reasons

The problem is the height settings for your elements:
Your root element should be a relative layout, you can then set the fixed height of the camera view and set the textview with the text to height match parent and layout_below the scroll view.

try this layout.But don't understand why use scrollView.
I post 2 layout
First one where surface mean camera face is 160dp
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical" >
<LinearLayout
android:id="#+id/linearLayoutBeautyContent"
android:layout_width="fill_parent"
android:layout_height="160dp"
android:orientation="vertical" >
<SurfaceView
android:id="#+id/surfaceViewBeautyCamera"
android:layout_width="fill_parent"
android:layout_height="fill_parent" />
</LinearLayout>
<TextView
android:id="#+id/scanText"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_alignParentBottom="true"
android:layout_below="#id/linearLayoutBeautyContent"
android:background="#000000"
android:text="Scanning..." >
</TextView>
</RelativeLayout>
2nd one is, camera will capture fullscreen size picture but u can see only 160 window at time of capture
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical" >
<LinearLayout
android:id="#+id/linearLayoutBeautyContent"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_alignParentTop="true"
android:orientation="vertical" >
<SurfaceView
android:id="#+id/surfaceViewBeautyCamera"
android:layout_width="fill_parent"
android:layout_height="fill_parent" />
</LinearLayout>
<TextView
android:id="#+id/scanText"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_alignParentBottom="true"
android:layout_marginTop="160dp"
android:background="#000000"
android:text="Scanning..." >
</TextView>
</RelativeLayout>

I dont know why you put surfaceView in the scrollView But I put up with your layout file and its works for me as you show in expected snapshot result .
Edits:
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="200dp"
android:orientation="vertical" >
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="match_parent" >
<ScrollView
android:id="#+id/scrollView"
android:layout_width="match_parent"
android:layout_height="200dp"
android:fillViewport="true"
android:scrollbars="none" >
<LinearLayout
android:id="#+id/linearLayoutBeautyContent"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical" >
<SurfaceView
android:id="#+id/surfaceViewBeautyCamera"
android:layout_width="match_parent"
android:layout_height="160dp" />
<TextView
android:id="#+id/scanText"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:text="Scanning..." >
</TextView>
</LinearLayout>
</ScrollView>
</RelativeLayout>
</LinearLayout>