I'm doing this Application where I dynamically change a ListView Size like in the following code:
RelativeLayout.LayoutParams mParam = new RelativeLayout.LayoutParams(LayoutParams.FILL_PARENT,LayoutParams.WRAP_CONTENT);
sucs.setLayoutParams(myListView);
But when I do this, the ListView appears on top of the view. Is there any way where I can place it below the textview where it is supposed to be?
Thanks in advance!
EDITED:
Here´s my xml:
<TextView
android:id="#+id/sucursales_empresa"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_below="#id/direccion_empresa"
android:background="#drawable/barra"
android:text="#string/sucursales"
android:visibility="gone" />
<ListView
android:id="#+id/sucursalesEmpresaList"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_below="#id/sucursales_empresa"
android:cacheColorHint="#00000000"
android:visibility="gone" />
You have to add rule for listview LayoutParams like this..
RelativeLayout.LayoutParams params1 = new RelativeLayout.LayoutParams(
LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT);
params1.addRule(RelativeLayout.BELOW, R.id.textview);
listview.setLayoutParams(params1);
Try this
RelativeLayout.LayoutParams params = new RelativeLayout.LayoutParams(
ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.WRAP_CONTENT);
params.addRule(RelativeLayout.ALIGN_PARENT_BOTTOM, view.getId());
view.setLayoutParams(params);
ViewGroup parentView = (ViewGroup) findViewById(R.id.viewgroup);
parentView.addView(mylsitview);
Related
I tried solutions found in other posts but none of them seems to work in my code.
Here is a piece of code:
EDIT: updated, removed one RelativeLayout, still not centered
GridView gridView = new GridView(this);
HallAdapter hallAdapter = new HallAdapter(this, listOfSeats);
gridView.setNumColumns(columnCount);
gridView.setAdapter(hallAdapter);
ZoomView zoomView = new ZoomView(this);
zoomView.addView(gridView);
RelativeLayout.LayoutParams params = new RelativeLayout.LayoutParams(
RelativeLayout.LayoutParams.WRAP_CONTENT,
RelativeLayout.LayoutParams.WRAP_CONTENT);
params.addRule(RelativeLayout.CENTER_HORIZONTAL);
params.addRule(RelativeLayout.ABOVE, R.id.infoTextView);
RelativeLayout relativeLayoutMain = (RelativeLayout)findViewById(R.id.relativeLayout);
relativeLayoutMain.addView(zoomView, params);
I think that i have to add some LayoutParameters, but I don't know where.
Part of XML file of activity:
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:paddingBottom="#dimen/activity_vertical_margin"
android:paddingLeft="#dimen/activity_horizontal_margin"
android:paddingRight="#dimen/activity_horizontal_margin"
android:paddingTop="#dimen/activity_vertical_margin"
android:id="#+id/relativeLayout">
This is how its look now:
EDIT:
I wonder is it look like this? Or am I wrong?
Use layout params when adding the view
RelativeLayout.LayoutParams params =
new RelativeLayout.LayoutParams(
RelativeLayout.LayoutParams.WRAP_CONTENT,
RelativeLayout.LayoutParams.WRAP_CONTENT);
params.addRule(RelativeLayout.CENTER_HORIZONTAL);
relativeLayoutMain.addView(relativeLayoutForZoom, params);
After second look at your question I have another answer.
Do you need relativeLayoutForZoom at all?
GridView gridView = new GridView(this);
HallAdapter hallAdapter = new HallAdapter(this, listOfSeats);
gridView.setNumColumns(columnCount);
gridView.setAdapter(hallAdapter);
ZoomView zoomView = new ZoomView(this);
zoomView.addView(gridView);
RelativeLayout.LayoutParams params =
new RelativeLayout.LayoutParams(
RelativeLayout.LayoutParams.WRAP_CONTENT,
RelativeLayout.LayoutParams.WRAP_CONTENT);
params.addRule(RelativeLayout.CENTER_HORIZONTAL);
params.addRule(RelativeLayout.ABOVE, R.id.infoTextView);
RelativeLayout relativeLayoutMain = (RelativeLayout)findViewById(R.id.relativeLayout);
relativeLayoutMain.addView(zoomView, params);
Modify your code to this
GridView gridView = new GridView(this);
HallAdapter hallAdapter = new HallAdapter(this, listOfSeats);
gridView.setNumColumns(columnCount);
gridView.setAdapter(hallAdapter);
ZoomView zoomView = new ZoomView(this);
zoomView.addView(gridView);
RelativeLayout relativeLayoutForZoom = new RelativeLayout(this);
RelativeLayout.LayoutParams params = new RelativeLayout.LayoutParams(RelativeLayout.LayoutParams.WRAP_CONTENT, RelativeLayout.LayoutParams.WRAP_CONTENT);
params.addRule(RelativeLayout.ABOVE, R.id.infoTextView);
params.addRule(RelativeLayout.CENTER_HORIZONTAL);
relativeLayoutForZoom.addView(zoomView);
RelativeLayout relativeLayoutMain = (RelativeLayout)findViewById(R.id.relativeLayout);
relativeLayoutMain.setGravity(Gravity.CENTER);
relativeLayoutMain.addView(relativeLayoutForZoom,params);
Set layout parameters of zoomView to params and add the rule to params as params.addRule(RelativeLayout.CENTER_HORIZONTAL);
Regards,
Try Adding
parms.addRule(RelativeLayout.CENTER_IN_PARENT);
along with params.addRule(RelativeLayout.ABOVE, R.id.infoTextView);
<GridView
android:id="#+id/gridView1"
android:layout_width="200dp"
android:layout_height="200dp"
android:layout_centerHorizontal="true"
android:layout_centerVertical="true"
android:numColumns="3" >
</GridView>
RelativeLayout.LayoutParams layoutParams =
(RelativeLayout.LayoutParams)positiveButton.getLayoutParams();
layoutParams.addRule(RelativeLayout.CENTER_IN_PARENT, RelativeLayout.TRUE);
gridview.setLayoutParams(layoutParams);
![ android:layout_centerHorizontal="true"
android:layout_centerVertical="true"]1
I am inflating a view in my activty like this
View myView = getLayoutInflater().inflate(R.layout.my_view, my_activity_layout);
And now I want to center myView in the regular layout
I tried this
RelativeLayout.LayoutParams layoutParams =
(RelativeLayout.LayoutParams)myView.getLayoutParams();
layoutParams.addRule(RelativeLayout.CENTER_IN_PARENT, RelativeLayout.TRUE);
myView.setLayoutParams(layoutParams);
But got this error
android.widget.FrameLayout$LayoutParams cannot be cast to android.widget.RelativeLayout$LayoutParams
How could I center this view?
Thanks
EDIT
Here is my xml
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="200dp" android:layout_height="250dp"
android:id="#+id/discountView" >
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Discount:"
android:id="#+id/discountTitleText"
android:layout_marginTop="20dp"
android:layout_alignParentTop="true"
android:layout_centerHorizontal="true"
android:textSize="24sp"
android:textColor="#ffffff" />
Replace FrameLayout.LayoutParams instead if RelativeLayout.LayoutParams.
OR
You have to change FrameLayout to RelativeLayout in my_view.xml file
What is error here? To understand it you need to understand how view/viewgroup hierarchy is created for that refer : http://android-developers.blogspot.in/2009/03/android-layout-tricks-3-optimize-by.html
So if you go back to your view actually you have FrameLayout-->RelativeLayout-->Textview
Solution
Instead of use
RelativeLayout.LayoutParams layoutParams =
(RelativeLayout.LayoutParams)myView.getLayoutParams();
layoutParams.addRule(RelativeLayout.CENTER_IN_PARENT, RelativeLayout.TRUE);
myView.setLayoutParams(layoutParams);
use
FrameLayout.LayoutParams layoutParams =
(FrameLayout.LayoutParams)myView.getLayoutParams();
layoutParams.addRule(//your code);
myView.setLayoutParams(layoutParams);
or alternatively get RelativeLayout from your view
RelativeLayout rootLayout = myView.findViewById(R.id.discountView);
//And using RelativeLayout params as you have done
rootLayout.setLayoutParams(layoutParams)
Please help me to add a RelativeLayout below a RadioButton dynamically (I have to create RelativeLayout and RadioButton in class).
Something like this:
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content" >
<RadioButton
android:id="#+id/radioButton3"
android:text="RadioButton" />
<RelativeLayout
android:id="#+id/relativeLayout2"
android:layout_below="#+id/radioButton3"
android:layout_width="match_parent"
android:layout_height="wrap_content">
</RelativeLayout>
</LinearLayout>
To View I can write:
myLayout.addView(myView, layoutParams);
But how about ViewGroup?
I am not sure whether I understand u. Please check it and give me feedback. Thank you!
LinearLayout mLayout = (LinearLayout) findViewById(R.id.myLayout);
LayoutParams p = new LayoutParams(LayoutParams.WRAP_CONTENT,LayoutParams.WRAP_CONTENT);
RadioButton mRadioButton = new RadioButton(this);
mRadioButton.setLayoutParams(p);
mLayout.addView(mRadioButton);
p = new LayoutParams(LayoutParams.MATCH_PARENT,LayoutParams.WRAP_CONTENT);
RelativeLayout mRelativeLayout = new RelativeLayout(this);
mRelativeLayout.setLayoutParams(p);
mLayout.addView(mRelativeLayout);
I have a hierarchy that is like this:
LinearLayout(horizontal)
ImageView
LinearLayout(vertical)
TextView
TextView
TextView
TextView
I want to be able to add the hierarchy above through iteration as long as there is data that could be obtained from the database(using Parse)
I have tried putting up the ImageView and LinearLayout under the parent LinearLayout but it doesn't seem to work. Here is my code in MainActivity.Java:
LinearLayout LL_Outer = (LinearLayout) findViewById(R.id.new_linearLayoutOuter);
LL_Outer.setOrientation(LinearLayout.VERTICAL); // set orientation
LL_Outer.setBackgroundColor(color.white); // set background
// set Layout_Width and Layout_Height
LinearLayout.LayoutParams layoutForOuter = new LinearLayout.LayoutParams(LinearLayout.LayoutParams.MATCH_PARENT, LinearLayout.LayoutParams.MATCH_PARENT);
LL_Outer.setLayoutParams(layoutForOuter);
LinearLayout LL_Inner = (LinearLayout) findViewById(R.id.new_linearLayoutInner);
LL_Inner.setOrientation(LinearLayout.HORIZONTAL);
LL_Inner.setBackgroundColor(color.white);
LinearLayout.LayoutParams layoutForInner = new LinearLayout.LayoutParams(LinearLayout.LayoutParams.MATCH_PARENT, LinearLayout.LayoutParams.WRAP_CONTENT);
LL_Inner.setLayoutParams(layoutForInner);
//LL_Outer.addView(LL_Inner);
ImageView IV = (ImageView) findViewById(R.id.new_imageViewPP);
//IV.getLayoutParams().height = 55;
//IV.getLayoutParams().width = 55;
LinearLayout.LayoutParams params = new LinearLayout.LayoutParams(LinearLayout.LayoutParams.WRAP_CONTENT, LinearLayout.LayoutParams.WRAP_CONTENT);
params.setMargins(14, 12, 0, 0);
params.height = 55;
params.weight = 55;
IV.setBackgroundColor(color.black);
IV.setLayoutParams(params);
LL_Inner.addView(IV);
LL_Outer.addView(LL_Inner);
I don't know where I went wrong as my code did not prompt any error. Please help.
EDIT: I have edited the Orientations accordingly and when I run the app, it stops working. And prompts an error in LogCat saying "The specified child already has a parent. You must call removeView() on the child's parent first.
Here's my XML:
<LinearLayout
android:id="#+id/new_linearLayoutOuter"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:background="#color/white"
android:orientation="horizontal" >
<ImageView
android:id="#+id/new_imageViewPP"
android:layout_width="55dp"
android:layout_height="55dp"
android:layout_marginLeft="14dp"
android:layout_marginTop="12dp"
android:background="#color/black"
android:contentDescription="#string/pp" />
<LinearLayout
android:id="#+id/new_linearLayoutInner"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:background="#color/white"
android:orientation="vertical" >
<TextView
android:id="#+id/new_textView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="#string/movie_title"
android:paddingTop="10dp"
android:paddingLeft="7dp"
android:textSize="15sp" /> <!-- Title of the movie -->
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="#string/review_by"
android:paddingTop="3dp"
android:paddingLeft="7dp"
android:textSize="12sp" /> <!-- By -->
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="#string/movie_stars"
android:paddingTop="3dp"
android:paddingLeft="7dp"
android:textSize="12sp" /> <!-- Rating and date -->
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="#string/sample_string"
android:maxLines="5"
android:scrollbars="vertical"
android:paddingTop="10dp"
android:paddingLeft="7dp"
android:textSize="12sp"
android:layout_gravity="center_vertical|right" /> <!-- Review content -->
</LinearLayout>
</LinearLayout>
You want that hierarchy programmatically.
- LinearLayout(horizontal)
- ImageView
- LinearLayout(vertical)
- TextView
- TextView
- TextView
- TextView
Ok lets start with Parent LinearLayout
LinearLayout parent = new LinearLayout(context);
parent.setLayoutParams(new LinearLayout.LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.WRAP_CONTENT));
parent.setOrientation(LinearLayout.HORIZONTAL);
//children of parent linearlayout
ImageView iv = new ImageView(context);
LinearLayout layout2 = new LinearLayout(context);
layout2.setLayoutParams(new LinearLayout.LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.WRAP_CONTENT));
layout2.setOrientation(LinearLayout.VERTICAL);
parent.addView(iv);
parent.addView(layout2);
//children of layout2 LinearLayout
TextView tv1 = new TextView(context);
TextView tv2 = new TextView(context);
TextView tv3 = new TextView(context);
TextView tv4 = new TextView(context);
layout2.addView(tv1);
layout2.addView(tv2);
layout2.addView(tv3);
layout2.addView(tv4);
And you are done :)
The problem is because the views are already added to the layout in the XML file. Then you findViewById (find them) and try to add them to the layout again. That is why the app crashes complaining that, view already has a parent and you can't add it again.
In the XML File LinearLayout already has child view. So there is not need to add them in code.
i suggest you to remove the xml file and just use full code on the java side. you can add the views programatically from the java side. this one from xtreemdeveloper but i change few line for the parent layout.
// remove this params set it up below
parent.setLayoutParams(new LinearLayout.LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.WRAP_CONTENT));
// change the code above into
.LayoutParams layoutParams = new LinearLayout.LayoutParams(LinearLayout.LayoutParams.MATCH_PARENT,LinearLayout.LayoutParams.MATCH_PARENT);
addContentView(parent,layoutParams);
// end of my change
it will look like this in full code =
LinearLayout parent = new LinearLayout(context);
// remove this params set it up below
parent.setLayoutParams(new LinearLayout.LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.WRAP_CONTENT));
// change the code above into
.LayoutParams layoutParams = new LinearLayout.LayoutParams(LinearLayout.LayoutParams.MATCH_PARENT,LinearLayout.LayoutParams.MATCH_PARENT);
addContentView(parent,layoutParams);
// end of my change
parent.setOrientation(LinearLayout.HORIZONTAL);
//children of parent linearlayout
ImageView iv = new ImageView(context);
LinearLayout layout2 = new LinearLayout(context);
layout2.setLayoutParams(new LinearLayout.LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.WRAP_CONTENT));
layout2.setOrientation(LinearLayout.VERTICAL);
parent.addView(iv);
parent.addView(layout2);
//children of layout2 LinearLayout
TextView tv1 = new TextView(context);
TextView tv2 = new TextView(context);
TextView tv3 = new TextView(context);
TextView tv4 = new TextView(context);
layout2.addView(tv1);
layout2.addView(tv2);
layout2.addView(tv3);
layout2.addView(tv4);
I am creating my controls programmatically, based on JSON received from a server. One of the controls I need to create is a WebView that is horizontally centred on the screen. This is simple in xml layouts as shown below using the layout_gravity option. But how do you do this in code, the WebView unlike TextView does not have a setGravity(Gravity.HORIZONTAL_GRAVITY_MASK) method.
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical" >
<WebView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"/>
</LinearLayout>
I would use a RelativeLayout, then you can use LayoutParams when adding the view:
RelativeLayout.LayoutParams layoutParams= new RelativeLayout.LayoutParams(LayoutParams.FILL_PARENT, LayoutParams.FILL_PARENT);
layoutParams.addRule(RelativeLayout.CENTER_IN_PARENT, 1);
relativeLayout.addView(yourWebView, layoutParams);
i use LinearLayout to show webview and setGravity.
LinearLayout linearLayout = new LinearLayout(this);
linearLayout.setLayoutParams(new LayoutParams(LayoutParams.FILL_PARENT,
LayoutParams.FILL_PARENT));
linearLayout.setGravity(Gravity.CENTER);
WebView view = new WebView(this);
linearLayout.addView(view);
setContentView(linearLayout);
it help you.