How to extend the height of the separated vertical line (view) dynamically in the image?
This is the XML I'm using:
<View android:layout_width="1dp"
android:layout_height="100dp"
android:id="#+id/view_verdict"
android:background="#color/line"
android:foregroundGravity="center_horizontal"
android:layout_alignParentTop="true"
android:layout_centerHorizontal="true" />
Maybe this example code will be useful (I suppose that your view is a LinearLayout):
final int newHeight = 100; //this is the new height will be set in your view
LinearLayout.LayoutParams params = new LinearLayout.LayoutParams(LinearLayout.LayoutParams.MATCH_PARENT, newHeight);//first param is the width, and second the height
myView.setLayoutParams(params);
Or just put:
...
android:layout_height="match_parent"
...
set
android:layout_height="match_parent"
for your view with id view_verdict
Related
I have a RecyclerView with a fixed Dimension-Ratio
<androidx.constraintlayout.widget.ConstraintLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
...>
<androidx.recyclerview.widget.RecyclerView
android:layout_width="0dp"
android:layout_height="0dp"
android:orientation="horizontal"
app:layoutManager="androidx.recyclerview.widget.LinearLayoutManager"
app:layout_constraintDimensionRatio="35:16"
... />
</androidx.constraintlayout.widget.ConstraintLayout>
I Need to show list of ImageView inside the RecyclerView, but with a fixed number of images shown on the screen, and the rest of the images need to scroll to be shown, similar to the image
I Create this layout with ImageView inside it:
<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="wrap_content"
android:layout_height="wrap_content">
<ImageView
android:id="#+id/image"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_marginStart="4dp"
android:layout_marginEnd="4dp"
android:adjustViewBounds="true"
android:scaleType="centerCrop"
android:src="#drawable/image2"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.5"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
</androidx.constraintlayout.widget.ConstraintLayout>
The problem here
I try a lot, but the image doesn't show without setting the layout_width and layout_hieght with a fixed number.
and What i want is to set ImageView hight-width dynamicly with RecyclerView Hight and Screen Width.
The solution is super easy:
pass DisplayMetrics In The Adapter Constructor for getting screen width.
DisplayMetrics displayMetrics;
public SearchSliderOneAdapter(DisplayMetrics displayMetrics) {
this.displayMetrics = displayMetrics;
}
and calculate the width of ImageView = ScreenWidth\numberOfImage inside onCreateViewHolder function of the adapter.
public SearchSliderOneViewHolder onCreateViewHolder(#NonNull ViewGroup parent, int viewType) {
View inflate = LayoutInflater.from(parent.getContext()).inflate(R.layout.view_image_slider, parent, false);
LinearLayout.LayoutParams params = new LinearLayout.LayoutParams(
displayMetrics.widthPixels / numberOfImage,
GridLayout.LayoutParams.MATCH_PARENT, 1);
inflate.setLayoutParams(params);
return new SearchSliderOneViewHolder(inflate, listener);
}
I already found this How to add buttons in Zxing Scanner Camera View
But it's doesn't work ...
I use a camera in a pop up window like this
DisplayMetrics dm = new DisplayMetrics();
getWindowManager().getDefaultDisplay().getMetrics(dm);
int width =dm.widthPixels;
int height =dm.heightPixels;
getWindow().setLayout((int)(width*.9), (int)(height*.7));
WindowManager.LayoutParams params = getWindow().getAttributes();
params.gravity = Gravity.TOP;
params.x =0;
params.y = -20;
getWindow().setAttributes(params);
mScannerView = (ZXingScannerView) findViewById(R.id.zxscan);
mScannerView.setResultHandler(this);
mScannerView.startCamera();
And this is xml file
<RelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#CFD8DC"
android:orientation="vertical"
tools:context="com.example.adisi.turzilnic.S1">
<me.dm7.barcodescanner.zxing.ZXingScannerView
android:id="#+id/zxscan"
android:layout_width="match_parent"
android:layout_height="match_parent">
<ImageButton
android:id="#+id/FlashOFF"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="#drawable/flashoff"
android:layout_marginLeft="150dp"
android:layout_marginStart="150dp"
android:layout_marginTop="150dp"/>
<ImageButton
android:id="#+id/FlashON"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="#drawable/flashon"
android:layout_gravity="center"
android:layout_marginTop="50dp"/>
</me.dm7.barcodescanner.zxing.ZXingScannerView>
</RelativeLayout>
What is wrong here? I don't understand.. My buttons aren't shown on camera.. Should be from that pop up? I set the buttons with margintop and marginleft on the middle because I wanted to see if the positions it's the problem.. but the same problem ..
The size of your buttons is wrap_content and instead of setting the image source on the button you are setting the image on the background. The view relative sizes don't keep track of your view's background so you will most probably have a view with width/height set to 0.
Try to set the images using "src" instead.
I'm trying to add a custom view to a linearlayout, but the view does not keep it's height. The height is 48dp so it's fixed but after I do addView() it change to wrap_content :
LinearLayout cmsList = (LinearLayout) mView.findViewById(R.id.ll_cms_sections);
View group = getActivity().getLayoutInflater().inflate(R.layout.item_cms_group, null);
cmsList.addView(group);
The group :
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="48dp"
android:background="#color/clear_orange">
<com.dekibae.android.popinthecity.presentation.ui.widgets.FontText
android:id="#+id/tv_cms"
style="#style/TitleOrangexNormal"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_marginEnd="#dimen/margin_normal"
android:layout_marginStart="#dimen/margin_normal"
android:layout_toLeftOf="#+id/indicator"
android:gravity="center"
android:paddingTop="4dp"
android:text="TEST SECTION"
app:font="#string/plaak" />
<ImageView
android:id="#+id/indicator"
android:layout_width="24dp"
android:layout_height="24dp"
android:layout_alignParentEnd="true"
android:layout_centerVertical="true"
android:layout_marginEnd="#dimen/margin_normal"
android:scaleType="centerInside"
android:src="#drawable/dropdown_arrow" />
</RelativeLayout>
The cmsList
<LinearLayout
android:id="#+id/ll_cms_sections"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical">
I even tried to force it :
group.setLayoutParams(new ViewGroup.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, 48));
Picking up on #Abtin Gramian's comment the constructor used takes as a dimension pixels, and not dp (density independent pixels)
From the android documentation
android.view.ViewGroup.LayoutParams public LayoutParams(int width,
int height)
Creates a new set of layout parameters with the specified width and height.
Parameters:
width - either WRAP_CONTENT, FILL_PARENT or a fixed size in pixels
height - either
WRAP_CONTENT, FILL_PARENT or a fixed size in pixels
So through the use of
public static float applyDimension (int unit, float value, DisplayMetrics metrics)
we can make a conversion from a dimension in one type of metrics like TypedValue.COMPLEX_UNIT_DIP to another, in this case one adequate for the current display.
group.setLayoutParams(new ViewGroup.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, 48, context.getResources().getDisplayMetrics())));
How can I set the width of a view (textview for example) in xml, but define its height programmatically, i havent seen anything in the android developer docs and was wondering if anyone could help me out?
Try this in xml:
<TextView
android:id="#+id/tv"
android:layout_width="60dp"
android:layout_height="wrap_content"
android:textSize="20sp"
android:text="HelloWorld"/>
And this one in your Class:
TextView textView = (TextView)findViewById(R.id.tv);
LayoutParams params = textView.getLayoutParams();
params.height = getResources().getDimensionPixelSize(R.dimen.text_view_height);
textView.setLayoutParams(params);
dimens xml:
<dimen name="text_view_height">60dp</dimen>
I have a view which defines its width and height accordingly to layout dimensions (via ViewTreeObserver). I have another two ImageViews (wrapped in the RelativeLayouts).
I need this two images be aligned to the top and bottom of the first view. They do, but use old view dimensions, not the corrected ones: so there is a gap between the views, when central gets smaller.
Here is an image of what I mean:
And the code:
#Override
public void onGlobalLayout() {
layoutWidth = layout.getWidth(); \\ main layout
layoutHeight = layout.getHeight();
LayoutParams params = arrows.getLayoutParams();
params.width = layoutHeight/3;
params.height = layoutHeight/3;
arrows.setLayoutParams(params);
LayoutParams paramseyes = eyes.getLayoutParams();
paramseyes.width = layoutHeight/4;
eyes.setLayoutParams(paramseyes);
mouth.setLayoutParams(paramseyes);
/*
RelativeLayout.LayoutParams lp = new RelativeLayout.LayoutParams
(paramseyes);
lp.addRule(RelativeLayout.ABOVE, R.id.arrows);
eyes.setLayoutParams(lp); ... nah, it didnt work
*/
removeOnGlobalLayoutListener(arrows, this);
}
the XML:
<ee.st.running.arrowwidgt
android1:id="#+id/arrows"
android1:layout_width="wrap_content"
android1:layout_height="wrap_content"
android1:layout_centerInParent="true"
android:dial="#drawable/hourglass1"
android:hand_hour="#drawable/hours"
android:hand_minute="#drawable/minuts"
android:scaleType="fitXY"
android1:src="#drawable/hourglass1" />
<RelativeLayout
android1:id="#+id/eyes"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerHorizontal="true"
android1:layout_above="#id/arrows" >
<ImageView
android1:layout_width="wrap_content"
android1:layout_height="wrap_content"
android1:layout_centerInParent="true"
android1:src="#drawable/eyes" />
</RelativeLayout>
<RelativeLayout
android1:id="#+id/mouthset"
android:layout_width = "wrap_content"
android:layout_height = "wrap_content"
android1:layout_below="#id/arrows"
android:layout_centerHorizontal="true"
>
<ImageView
android1:layout_width="wrap_content"
android1:layout_height="wrap_content"
android1:layout_centerHorizontal="true"
android1:src="#drawable/mouth"
/>
</RelativeLayout>
This arrows view is big (for multiple screens support I just scale it to certain size later).
I finally realized why.
When I changed layout width, it correspondingly scaled the image. But it didn't change layout height.
I should make
paramseyes.height = ...
(In my situation it is layoutHeight/8;)
So, the problem is solved.