I looked everywhere, but for the moment works.
here is my code:
<Spinner
android:id="#+id/departement"
android:layout_width="match_parent"
android:layout_height="25dp"
android:background="#color/colorAccent"
android:layout_marginLeft="10dp"
android:layout_marginRight="10dp"
android:gravity="center_vertical|center_horizontal"
/>
Spinner departement = (Spinner)sender;
((TextView)departement.GetChildAt(0)).SetForegroundGravity(GravityFlags.CenterHorizontal);
((TextView)departement.GetChildAt(0)).SetTextColor(Color.White);
the color works, but the center position does not. do you have an idea ?
You can use a new xml to define the content of that item in Spinner.
And cusotmize the style in that xml .
Item.xml
<?xml version="1.0" encoding="utf-8" ?>
<TextView
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:gravity="center" //center
android:textColor="#android:color/holo_red_dark"/> //Textcolor
Set in Adapter
ArrayAdapter<string> adapter = new ArrayAdapter<string>(this,Resource.Layout.Item,items);
departement.Adapter = adapter;
Related
I'd like to center the following LinearLayout to the center of his parent programatically:
<LinearLayout
android:id="#+id/SignButtonsLinearLayout"
android:orientation="vertical"
android:layout_width="wrap_content"
android:layout_height="wrap_content">
<homes.shared.components.customviews.HomesButton
android:id="#+id/CheckListPDFClosureButton"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginBottom="3dip"
android:drawableLeft="#drawable/CheckListPDFClosure"
android:background="#drawable/MainBlueButton"
style="#style/WhiteDeliveryNoteMenuBold"
android:text="#string/CheckListPDFClosure" />
<homes.shared.components.customviews.HomesButton
android:id="#+id/SignatureAndCloseButton"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:drawableLeft="#drawable/SignatureAndClosure"
android:background="#drawable/MainBlueButton"
style="#style/WhiteDeliveryNoteMenuBold"
android:text="#string/SignatureAndClose" />
</LinearLayout>
I have instanced the LinearLayout in code like this:
LinearLayout ll = this.FindViewById<LinearLayout>(Resource.Id.SignButtonsLinearLayout);
but the object doesn't have LayoutGravity property
You can do it quick hand like this:
LinearLayout ll = this.FindViewById<LinearLayout>(Resource.Id.SignButtonsLinearLayout);
ll.SetGravity(GravityFlags.Center);
Or you can do it this way too:
LinearLayout ll = this.FindViewById<LinearLayout>(Resource.Id.SignButtonsLinearLayout);
LinearLayout.LayoutParams layoutParams = (LinearLayout.LayoutParams)lin.LayoutParameters;
layoutParams.Gravity = GravityFlags.Center;
ll.LayoutParameters = layoutParams;
Some more info can be found in this SO reply here as well.
EDIT:
Apologies, to adjust the layout gravity which sets the gravity of the View or Layout relative to its parent then you should just be able to add this attribute to your axml layout file. android:layout_gravity="center" like this:
<LinearLayout
android:id="#+id/SignButtonsLinearLayout"
android:layout_gravity="center"
android:orientation="vertical"
android:layout_width="wrap_content"
android:layout_height="wrap_content">
The other option is to stack layouts, so you could wrap your linear layout in a relative layout like this and use center in parent.
<RelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:focusableInTouchMode="true"
android:layout_width="match_parent"
android:layout_height="match_parent">
<LinearLayout
android:id="#+id/SignButtonsLinearLayout"
android:layout_centerInParent="true"
android:orientation="vertical"
android:layout_width="wrap_content"
android:layout_height="wrap_content">
</LinearLayout>
</RelativeLayout>
I have a ScrollView added to a FrameLayout. In a button click I remove the ScrollView from the FrameLayout and add an element derived from ViewGroup. If the button is clicked again the ViewGroup is removed and the ScrollView is added back. While adding the ScrollView back to the FrameLayout after removing the ViewGroup I get the following exception from the AddView method of the FrameLayout. Actually it is thrown from the AddView() method of ViewGroup class, since FrameLayout is derived from ViewGroup.
Unhandled Exception:
Java.Lang.NullPointerException: Attempt to invoke virtual method 'void
android.view.View.resolveLayoutParams()' on a null object reference
occurred
I have already tried to toggle the visibility of both Views instead of adding one and removing the other. But after toggling visibility, the application crashes every time when the FrameLayout's OnLayout is called such as when the Android keyboard appears or if the device orientation changes.
I am sorry that I am not able to provide the code. Because my code is very complex and I could not reproduce this problem in a simple sample. I just posted this question as a last resort.
I know it is not possible to get solution if code is not included. But any input related to this problem will be helpful.
Since you cannot provide the code here, I can only write part of the code to show your requirements:
in xaml,i add a ScrolView (with its children) and a LinearLayout(which as your ViewGroup) into a FrameLayout:
<?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"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent">
<FrameLayout
android:id="#+id/framelayout"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_above = "#+id/click"
>
<ScrollView
android:id="#+id/scroll"
android:layout_width="match_parent"
android:layout_height="match_parent"
>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text ="text in scrollview"
/>
</LinearLayout>
</ScrollView>
<LinearLayout
android:id="#+id/linearlayout"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:visibility="gone"
>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text ="text iFn LinearLayout"
/>
</LinearLayout>
</FrameLayout>
<Button
android:id = "#+id/click"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="click"
android:layout_alignParentBottom="true"
/>
</RelativeLayout>
in activity show and hide the Scrolview and LinearLayout by click Button:
private int num = 1;
protected override void OnCreate(Bundle savedInstanceState)
{
base.OnCreate(savedInstanceState);
// Set our view from the "main" layout resource
SetContentView(Resource.Layout.activity_main);
Button button = FindViewById<Button>(Resource.Id.click);
FrameLayout frameLayout = FindViewById<FrameLayout>(Resource.Id.framelayout);
ScrollView scrollView = FindViewById<ScrollView>(Resource.Id.scroll);
LinearLayout linearLayout = FindViewById<LinearLayout>(Resource.Id.linearlayout);
button.Click += delegate
{
if (num % 2 ==0)
{
scrollView.Visibility = Android.Views.ViewStates.Gone;
linearLayout.Visibility = Android.Views.ViewStates.Visible;
}
else
{
linearLayout.Visibility = Android.Views.ViewStates.Gone;
scrollView.Visibility = Android.Views.ViewStates.Visible;
}
num++;
};
}
I want to combine status bar and toolbar with gradient like this
I have tried to set status bar transparent and make the toolbar big and set the gradient .
But It also makes your UI goes under the Soft navigation keys.
And also soft keyboard is covering the EditTexts.
android:windowSoftInputMode="adjustPan" not working
if (Build.VERSION.SdkInt >= BuildVersionCodes.Kitkat)
{
Window window = Window;
window.AddFlags(WindowManagerFlags.LayoutNoLimits);
window.AddFlags(WindowManagerFlags.TranslucentNavigation);
}
Is there any way only the status bar make transparent rather than transparent both status bar and navigation button on the bottom.
You could alse do like this,add the code into the OnCreate method :
protected override void OnCreate(Bundle savedInstanceState)
{
if (Build.VERSION.SdkInt >= Build.VERSION_CODES.Kitkat)
{
Window w = Window;
w.AddFlags(WindowManagerFlags.TranslucentStatus);
w.SetSoftInputMode(SoftInput.StateHidden|SoftInput.AdjustResize);
}
base.OnCreate(savedInstanceState);
SetContentView(Resource.Layout.activity_other);
}
then create the gradient.xml in Resources/drawable :
<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android">
<gradient android:angle="135"
android:startColor="#f56f2c"
android:endColor="#fa9f46"/>
</shape>
at last in the layout.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"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:orientation = "vertical"
android:layout_height="match_parent"
android:fitsSystemWindows= "true"
android:background= "#drawable/gradient"
>
<!--use Toolbar-->
<android.support.v7.widget.Toolbar
android:id="#+id/toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
app:title="标题"
app:titleTextColor="#fff"
app:subtitle="副标题"
app:subtitleTextColor="#fff"/>
<!--if dont use Toolbar,RePresent Toolbar-->
<LinearLayout
android:orientation="horizontal"
android:layout_width="match_parent"
android:layout_height="44dp">
<ImageView
android:layout_gravity="center_vertical"
android:src="#drawable/ic_arrow_back_white_24dp"
android:layout_marginLeft="10dp"
android:layout_width="35dp"
android:layout_height="35dp" />
<TextView
android:layout_gravity="center_vertical"
android:textSize="25sp"
android:gravity="center_horizontal"
android:textColor="#fff"
android:text="Test Title"
android:layout_width="match_parent"
android:layout_height="wrap_content" />
</LinearLayout>
<ScrollView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fillViewport="true"
android:id="#+id/scrollView1"
android:background = "#fff" //set the background color of your content
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation ="vertical" >
<!--your content -->
...
</LinearLayout>
</ScrollView>
</LinearLayout>
Why don't you set the color of status bar same as the startColor of gradient and let the toolbar start from where it does.
Create a static method that sets the status bar colour something like below:
public static void SetStatusBarGradiant(Activity activity)
{
if (Build.VERSION.SdkInt >= BuildVersionCodes.Lollipop)
{
Window window = activity.Window;
Drawable background = ResourcesCompat.GetDrawable(activity.Resources, Resource.Drawable.abc_ab_share_pack_mtrl_alpha, null);
window.AddFlags(WindowManagerFlags.DrawsSystemBarBackgrounds);
window.SetStatusBarColor(Android.Graphics.Color.Transparent);
window.SetNavigationBarColor(Android.Graphics.Color.Transparent);
window.SetBackgroundDrawable(background);
}
}
Then add a gradient.xml in drawable something like below see to it you set the start color and end color as per your requirement:
gradient.xml
<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item>
<shape>
<gradient
android:angle="90"
android:startColor="#FFFF0000"
android:endColor="#FF00FF00"
android:type="linear" />
</shape>
</item>
</selector>
Goodluck
Revert if you have queries
I am working on chat application where Edittext and send button is at bottom.
Activity is fullscreen, hidden navigation and status bar.
I need to push edittext and send button up when keyboard comes into focus.
I tried to set android:windowSoftInputMode="adjustResize" but it didn't worked.
I tried using AndroidBug5497Workaround.assistActivity(this) class referred from https://github.com/madebycm/AndroidBug5497Workaround but it didn't worked.
Below is my activity theme and code in activity to hide bar and make full screen :
decorView = getWindow().getDecorView();
uiOptions = View.SYSTEM_UI_FLAG_HIDE_NAVIGATION | View.SYSTEM_UI_FLAG_IMMERSIVE_STICKY
| View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN | View.SYSTEM_UI_FLAG_IMMERSIVE_STICKY;
Theme :
<style name="AppTheme_DarkStatus" parent="Theme.AppCompat.Light.NoActionBar">
<item name="colorPrimary">#color/colorPrimary</item>
<item name="colorPrimaryDark">#color/colorPrimaryveryDark</item>
<item name="colorAccent">#color/colorAccent</item>
<item name="windowActionBar">false</item>
<item name="windowNoTitle">true</item>
<item name="android:windowContentTransitions">true</item>
<item name="android:windowDrawsSystemBarBackgrounds">true</item>
XMl :
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_below="#+id/include_view"
android:isScrollContainer="true"
android:background="#android:color/white">
<com.handmark.pulltorefresh.library.PullToRefreshListView
xmlns:ptr="http://schemas.android.com/apk/res-auto"
android:id="#+id/lv_chat"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_above="#+id/rl_send"
android:divider="#null"
android:fadeScrollbars="false"
android:fadingEdge="none"
android:overScrollMode="never"
android:scrollbars="none"
ptr:ptrHeaderSubTextColor="#color/c_input_text_color"
ptr:ptrHeaderTextColor="#color/c_input_text_color"
ptr:ptrOverScroll="false"
ptr:ptrPullLabel="Pull to refresh"
ptr:ptrRefreshLabel="Loading..."
ptr:ptrReleaseLabel="Release to refresh"
ptr:ptrRotateDrawableWhilePulling="true"
ptr:ptrShowIndicator="false" >
</com.handmark.pulltorefresh.library.PullToRefreshListView>
<RelativeLayout
android:id="#+id/rl_send"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:background="#color/c_white"
android:gravity="center" >
<View
android:id="#+id/view_dummy"
android:layout_width="match_parent"
android:layout_height="#dimen/d_diff_p5dp"
android:background="#color/c_text_light_color" />
<RelativeLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="#+id/view_dummy"
android:layout_toLeftOf="#+id/btn_send"
android:layout_marginRight="#dimen/d_diff_5dp"
android:layout_marginLeft="#dimen/d_diff_10dp"
android:layout_marginTop="#dimen/s_diff_7sp"
android:layout_marginBottom="#dimen/s_diff_7sp"
android:background="#drawable/opawhite_rectcorner_all" android:id="#+id/relativeLayout">
<EditText
android:id="#+id/et_message"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_margin="#dimen/d_diff_1dp"
android:background="#null"
android:focusableInTouchMode="true"
android:maxHeight="100dp"
android:hint="Type here..."
android:maxLength="150"
android:textSize="#dimen/s_diff_16sp"
android:padding="#dimen/s_diff_6sp"
android:textColorHint="#color/c_input_text_color"
android:textColor="#color/c_black" />
</RelativeLayout>
<Textview
android:id="#+id/btn_send"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="#color/c_white"
android:text="Send"
android:padding="#dimen/d_diff_5dp"
android:layout_marginRight="#dimen/d_diff_5dp"
android:gravity="center"
android:textColor="#color/c_orange_main"
android:textSize="#dimen/s_diff_16sp"
android:layout_centerVertical="true"
android:layout_alignParentRight="true"
android:layout_alignParentEnd="true"/>
</RelativeLayout>
</RelativeLayout>
I want to show edittext and send button above keyboard but it overlaps edittext.
Thanks!
The property android:windowSoftInputMode="adjustResize" doesn't work with full screen activity, you have to remove activity full screen flags in order to get advantage of adjust resize.
see this:
A fullscreen window will ignore a value of SOFT_INPUT_ADJUST_RESIZE for the window's softInputMode field; the window will stay fullscreen and will not resize.
I am trying to centre some code in my text view but it seems to be persistently left aligned:
<LinearLayout
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_centerVertical="true"
android:layout_above="#+id/myButtons">
<!-- Text -->
<TextView
android:id="#+id/myText"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:textSize="22sp"
android:text="Test"
android:textStyle="bold" />
<!-- And the thumbnail -->
<ImageView
android:id="#+id/image"
android:layout_marginTop="30dp"
android:layout_marginBottom="30dp"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:contentDescription="#string/image_text"
android:layout_gravity="center" />
</LinearLayout>
The image (when there is one, sometimes it is set to Visibility.GONE) is centre aligned okay. It's just I can't get the text to centre align.
Any thoughts welcome. Thanks!
add android:gravity="center_horizontal|center_vertical" in your textview attribute to make the center
<TextView
android:id="#+id/myText"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:gravity="center_horizontal|center_vertical"
android:textSize="22sp"
android:text="Test"
android:textStyle="bold" />
to make the Textview fillParent after imageview is gone
set height of the textview fill_parent Programatically like
textview.setLayoutParams(new LayoutParams(LayoutParams.FILL_PARENT,LayoutParams.WRAP_CONTENT,0));
^ ^
height width