I have 2 EditText views in my app:
<?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="fill_parent"
android:background="#color/white">
<MyProject.MyView
android:id="#+id/view1"
android:layout_width="match_parent"
android:layout_height="60dp" />
<EditText
android:id="#+id/view2"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#color/black"
style="#style/my_style"
android:hint="my hint2"/>
Here is the code for MyProject.MyView
public class MyView : LinearLayout
{
// not important code...
public LinearLayout Panel { get; private set; }
// Gets called from the constructor:
private void Init()
{
var layoutInflater = (LayoutInflater)this.Context.GetSystemService(Android.Content.Context.LayoutInflaterService);
this.content = layoutInflater.Inflate(Resource.Layout.my_content, this.Panel, true);
this.AddView(this.content);
}
}
And here is my_content:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:local="http://schemas.android.com/apk/res-auto"
android:orientation="horizontal"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="10dp"
style="#style/my_style2">
<EditText
android:id="#+id/view1"
android:layout_width="match_parent"
android:layout_height="wrap_content"
style="#style/my_style"
android:hint="my hint">
</EditText>
</LinearLayout>
The first EditText (that's being inflated from my MyView class) won't match the parent's width, it will only wrap the content. But the second EditText matches the parent's width. Why?
I solved it by wrapping the <LinearLayout> with a <RelativeLayout> in my my_content xml. I'm not sure why this was needed, so I would still appreciate an explanation so that I can better understand the way Android works.
Related
I am trying to detect wheither a view is currently visible within a recycle view. Using Layout manager's isViewPartiallyVisible method, I can pass a view in and see if it's partially visible. When I pass a Textview into the method, I get a class cast exception:
android.widget.LinearLayout$LayoutParams cannot be cast to android.support.v7.widget.RecyclerView$LayoutParams
So I changed Textview to AppCompatTextView in all references and within the xml layout to match the library version to recycleviews. I am still getting the same error.
edit --- here's the calling method
import android.support.v7.widget.RecyclerView
import android.support.v7.widget.AppCompatTextView
....
private fun withinView(wk_predictionTV: WeakReference<AppCompatTextView>, recyclerView: RecyclerView): Boolean {
try {
return recyclerView.layoutManager.isViewPartiallyVisible(predictionTV.get()!!, false, true)
} catch (e: Exception) {
Timber.e("Failed:${e.printStackTrace()}")
}
return true
}
list_view
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:orientation="vertical"
>
<android.support.v7.widget.AppCompatEditText
android:id="#+id/train_list_filter_edtext"
android:layout_width="match_parent"
android:layout_height="64dp"
android:hint="Enter Station Name"
android:inputType="text" />
<android.support.v7.widget.RecyclerView
android:id="#+id/recycler_view"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:scrollbars="vertical">
</android.support.v7.widget.RecyclerView>
</LinearLayout>
row.xml
<?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"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical">
<com.github.captain_miao.optroundcardview.OptRoundCardView
android:id="#+id/top_card_view"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginLeft="#dimen/trainlist_side_margins"
android:layout_marginRight="#dimen/trainlist_side_margins"
android:layout_marginTop="#dimen/trainlist_card_margins"
android:paddingTop="0dp"
app:optRoundCardCornerRadius="8dp"
app:optRoundCardLeftBottomCorner="false"
app:optRoundCardLeftTopCorner="true"
app:optRoundCardRightBottomCorner="false"
app:optRoundCardRightTopCorner="true"
>
..
</com.github.captain_miao.optroundcardview.OptRoundCardView>
</LinearLayout>
Any ideas?
I have a recyclerview list. Each item in the recyclerview contains the following layout. Later when one clicks on the sample1 id, then sample3.xml should get inserted inbetween sample1 and sample2. For that I have created a linearlayout with id insertat in this layout.
<?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="match_parent">
<TextView
android:layout_width="fill_parent"
android:layout_height="40dp"
android:id="#+id/sample1"
android:text="Sample1"/>
<LinearLayout
android:orientation="vertical" android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="#+id/insertat">
</LinearLayout>
<TextView
android:layout_width="fill_parent"
android:layout_height="40dp"
android:id="#+id/sample2"
android:text="Sample2"/>
</LinearLayout>
onclicking id sample1 I want to insert a layout file sample3.xml inside linearlayout id insertat.
sample3.xml is as follows
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical" android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="#+id/toinsert">
<TextView
android:layout_width="fill_parent"
android:layout_height="40dp"
android:text="Sample1"
android:id="#+id/sample3"/>
</LinearLayout>
How can I achieve this in recyclerview code.
I did not get exact requirement but , if you want just visible the view after on click, you can keep your layout by merge both as like below and can visible and invisible based on click event.
<?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="match_parent">
<TextView
android:layout_width="fill_parent"
android:layout_height="40dp"
android:id="#+id/sample1"
android:text="Sample1"/>
<LinearLayout
android:orientation="vertical" android:layout_width="match_parent"
android:layout_height="match_parent"
android:visibility="gone"
android:id="#+id/insertat">
<TextView
android:layout_width="fill_parent"
android:layout_height="40dp"
android:text="Sample1"
android:id="#+id/sample3"/>
</LinearLayout>
<TextView
android:layout_width="fill_parent"
android:layout_height="40dp"
android:id="#+id/sample2"
android:text="Sample2"/>
</LinearLayout>
LinearLayout layout = (LinearLayout)findViewbyId(R.id.insertat);
mKeepPlayingButton.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
layout.setVisibility(View.visible);
}
});
First get a reference of the insertat:
LinearLayout insertAtView = (LinearLayout) findViewById(R.id.insertat);
Inflate sample3 view:
View sample3View = getLayoutInflater().inflate(R.layout.sample3, insertAtView, false);
Then add sample3 to insertat:
insertAtView.addView(sample3View);
Full code:
findViewById(R.id.sample1).setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
LinearLayout insertAtView = (LinearLayout) findViewById(R.id.insertat);
View sample3View = getLayoutInflater().inflate(R.layout.sample3, insertAtView, false);
insertAtView.addView(sample3View);
}
});
I am trying to create something very simple: a CardView that stretches to screen height and has a TextView inside it which should stretch to the card width. I have made the card fill the screen vertically with android:height="match_parent" on the CardView. However, now the CardView contents, like a simple TextView will not stretch across the whole card horizontally when setting android:height="match_parent" on the TextView. It just looks like wrap_content instead.
Note that this CardView is being placed inside a RecyclerView with a horizontal LinearLayoutManager.
Note that setting android:layout_width="match_parent" on the card does not actually stretch it out to the screen width when using a horizontal LinearLayoutManager, and the opposite is true if using a vertical LinearLayoutManager! I think this has something to do with my problem.
Here is the CardView xml:
<android.support.v7.widget.CardView
xmlns:card_view="http://schemas.android.com/apk/res-auto"
xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/card_view"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_margin="6dp"
card_view:contentPadding="8dp"
card_view:cardElevation="8dp"
card_view:cardCornerRadius="4dp"
card_view:cardUseCompatPadding="true" >
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="match_parent">
<ImageView
android:id="#+id/imageView_video_thumbnail"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:scaleType="centerCrop" />
<TextView
android:id="#+id/textView_title"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
android:padding="2sp"
android:background="#80000000"
android:gravity="center"
android:textColor="#android:color/white"
android:textSize="16sp"/>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true">
<Button
android:id="#+id/textView_preview"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_weight="1"
android:gravity="center"
android:background="#80000000"
style="?android:attr/buttonBarButtonStyle"
android:text="Preview"/>
<Button
android:id="#+id/textView_set"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_weight="1"
android:background="#80000000"
android:gravity="center"
style="?android:attr/buttonBarButtonStyle"
android:text="Set"/>
</LinearLayout>
</RelativeLayout>
Here is the RecyclerView xml:
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingLeft="8dp"
android:paddingRight="8dp"
android:paddingTop="8dp"
android:paddingBottom="8dp"
android:gravity="center"
app:layout_behavior="#string/appbar_scrolling_view_behavior"
tools:showIn="#layout/activity_wallpapers" tools:context=".WallpapersActivity">
<android.support.v7.widget.RecyclerView
android:id="#+id/cardList"
android:layout_width="match_parent"
android:layout_height="match_parent" />
I fixed this by placing the CardView inside a RelativeLayout as the outer-most layout:
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="wrap_content">
<android.support.v7.widget.CardView
style="#style/CardLayout">
...
I guess you have problem with your inflater.
I had similar problem and changed my inflater from:
inflater.inflate(R.layout.services_card_list_item, null);
to this:
inflater.inflate(R.layout.services_card_list_item, parent, false);
This is working code. please try it.
public class MyRecyclerAdapter extends RecyclerView.Adapter<FeedListRowHolder> {
private List<FeedItem> feedItemList;
private Context mContext;
public MyRecyclerAdapter(Context context, List<FeedItem> feedItemList) {
this.feedItemList = feedItemList;
this.mContext = context;
}
#Override
public FeedListRowHolder onCreateViewHolder(ViewGroup viewGroup, int i) {
View v = LayoutInflater.from(viewGroup.getContext()).inflate(R.layout.list_row,viewGroup, false);
FeedListRowHolder mh = new FeedListRowHolder(v);
return mh;
}
#Override
public void onBindViewHolder(FeedListRowHolder feedListRowHolder, int i) {
// feedListRowHolder.title.setText("set data");
}
#Override
public int getItemCount() {
return 10;
}
}
OR
Replace with your code.
LayoutInflater.from(viewGroup.getContext())
.inflate(R.layout.card_listitem, viewGroup, false);
This was actually a bug in an early version of the RecylerView library. I forget exactly in which version it was fixed, but I think it was somewhere around support:recyclerview-v7:23.1.0 where it was fixed.
I have the follwing layout:
<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" >
<View
android:id="#+id/content"
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="1"/>
<LinearLayout
android:id="#+id/bottomNav"
android:layout_width="fill_parent"
android:layout_height="wrap_content" >
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Username: " />
</LinearLayout>
Programatically I'm replacing the view "content" with my Fragment:
View view = inflater.inflate(R.layout.kwiz_game, container, false);
contentView = view.findViewById(R.id.content);
currentFragment = new KwizCardBackFragment(android.R.drawable.btn_plus);
getFragmentManager().beginTransaction().replace(R.id.content,
currentFragment);
However the fragment is taking all the space and the Layout with the TextView is not shown.
I also tried to use RelativeLayouts with alignParentBottom=true and other stuff...
View of the Fragment which replaces the content:
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#drawable/background_kwiz_item" >
<ImageView
android:id="#+id/image"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:padding="5dp"
android:scaleType="centerCrop" />
</RelativeLayout>
OnCreateView of the fragment:
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.fragment_card_back, container,
false);
ImageView imageView = (ImageView) view.findViewById(R.id.image);
if (drawable != null) {
imageView.setImageDrawable(drawable);
} else {
imageView.setBackgroundResource(drawableId);
}
return view;
}
After hours of debugging I finally found the mistake... Some of my layouts had views with the id "content". I thought when I look for R.id.content that the "nearest" element will be used... that's not the case!
Thanks anyone!
I modified your layout a little bit and this seems to achieve what you want:
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent" >
<FrameLayout
android:id="#+id/content"
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_alignParentTop="true"
android:layout_above="#+id/bottomNav" />
<LinearLayout
android:id="#+id/bottomNav"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true" >
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Username: " />
</LinearLayout>
</RelativeLayout>
And a small side note, I see you used fill_parent in your layout, but that's deprecated since API level 8, so you should use match_parent instead :)
Hope this helps, cheers!
You should use FrameLayout as your fragment container, and put (and then replace) your fragments into that FrameLayout container.
Hi i have an activity class that has a layout, the layout itself has a custom view, this is the activity class:
import android.app.Activity;
import android.os.Bundle;
import android.util.Log;
public class Minesweeper extends Activity {
public static final String KEY_DIFFICULTY = "minesweeper.difficulty";
public static final int DIFFICULTY_EASY = 1;
public static final double DIFFICULTY_MEDIUM = 1.5;
public static final int DIFFICULTY_HARD = 2;
private int diff;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
diff = getIntent().getIntExtra(KEY_DIFFICULTY, DIFFICULTY_EASY);
diff++;
Log.d("diff", String.valueOf(diff));
Mine.setlevel(diff);
setContentView(R.layout.minesweeper);
Mine.clearMines();
}
}
and here's the layout of the activity:
<?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="fill_parent"
android:layout_height="fill_parent"
android:background="#drawable/background" >
<com.mine_sweeper.Table
xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/table"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
</LinearLayout>`
everything's good on graphical view in eclipse on layout file but when i try to add a button to the layout file it only sticks to the left side of my custom view witch is a 9*9 grid, so my question is how to move it under my custom veiw?
i have tried changing custom view's layout_width and layout_height already.
Try this. User vertical or horizontal to change positions in nested LinearLayout. android:orientation="vertical" or android:orientation="horizontal"
`
<?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="fill_parent"
android:layout_height="fill_parent">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical" >
<Button
android:id="#+id/button"
style="?android:attr/buttonStyleSmall"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="My Button" />
<com.mine_sweeper.Table
xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/table"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
</LinearLayout>
</LinearLayout>
`
You can also user other layouts like GridLayout etc. this is just one approach using LinearLayout