Below is my code
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:id="#+id/dialog"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_centerVertical="true"
android:onclick="hello"
>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="100dp"
android:orientation="vertical"
android:background="#FFFFEE"
android:layout_centerVertical="true"
android:id="#+id/ll">
<TextView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_gravity="center"
android:id="#+id/title"/>
</LinearLayout>
<RelativeLayout>
However when I click on LinearLayout the function hello is called.
I want function hello should not be called when I click LinearLayout
any suggestion??
I'm not sure how accurate will be.
#Override
public boolean onTouchEvent(MotionEvent event) {
Display display = getWindowManager().getDefaultDisplay();
DisplayMetrics mertrics = new DisplayMetrics ();
display.getMetrics(metrics);
float density = getResources().getDisplayMetrics().density;
float dpHeight = metrics.heightPixels / density;
float y = (float)event.getY();
switch (event.getAction()) {
case MotionEvent.ACTION_MOVE:
if(y < dpHeight / 2 + 50 && y > dpHeight / 2 - 50){
//no hello() here
}
else
{
// call hello() here and remove it from layout
}
}
return false;
}
You put android:onclick="hello" in wrong place. Try this code and let me know the result
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:id="#+id/dialog"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:onclick="hello"
android:layout_centerVertical="true">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="100dp"
android:orientation="vertical"
android:background="#FFFFEE"
android:layout_centerVertical="true"
android:clickable="false"
android:id="#+id/ll">
<TextView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_gravity="center"
android:id="#+id/title"/>
</LinearLayout>
<RelativeLayout>
Good luck :)
Related
I have a Greeting Card activity where one can place Text and Image at desired locations by moving ImageView and TextView using Touch events. After moving to location I want to save its position and use same for other greetings. But neither view.GetX(), view.GetY() nor view.Left, view.Top is working.
I can capture the XY after moving but when using same XY coordinates on SetX & SetY or Left & Top the view is placed at weird locations.
This is my XML layout and using Touch even I move imgV1, txtName and txtSignature.
<RelativeLayout
android:background="#ffffff"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_above="#+id/layoutControl"
android:layout_below="#+id/toolbar1"
android:layout_centerHorizontal="true"
android:layout_centerVertical="true">
<LinearLayout
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent">
<ProgressBar
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="#+id/pBar"
android:layout_gravity="center_vertical" />
</LinearLayout>
<FrameLayout
android:orientation="vertical"
android:id="#+id/GreetingFrame"
android:background="#ffffff"
android:layout_width="match_parent"
android:layout_height="wrap_content">
<FrameLayout
android:id="#+id/layoutPhoto"
android:layout_width="fill_parent"
android:layout_height="fill_parent">
<ImageView
android:layout_gravity="bottom|right|center_vertical|center_horizontal|center"
android:id="#+id/imgV1"
android:layout_width="135dp"
android:layout_height="135dp"
android:layout_marginRight="10dp"
android:layout_marginBottom="65dp"
android:scaleType="matrix"/>
</FrameLayout>
<ImageView
android:id="#+id/frameImage"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:scaleType="fitXY"
android:src="#drawable/digicard"
android:adjustViewBounds="true"
android:layout_alignParentBottom="true"/>
<TextView
android:textSize="18sp"
android:textColor="#000000"
android:layout_gravity="bottom|right|center_vertical|center_horizontal|center"
android:id="#+id/txtName"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginRight="35dp"
android:layout_marginBottom="55dp"
android:text="Your Name"/>
<TextView
android:textSize="22sp"
android:textStyle="bold"
android:textColor="#ffffff"
android:layout_gravity="bottom|right|center_vertical|center_horizontal|center"
android:id="#+id/txtSignature"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginRight="80dp"
android:layout_marginBottom="2dp"
android:text="9999999999"/>
</FrameLayout>
</RelativeLayout>
TextView touch event
private void TxtName_Touch(object s, TouchEventArgs e)
{
TextView v = (TextView)s;
if (e.Event.Action == MotionEventActions.Move)
{
v.SetX(e.Event.RawX - v.Width / 2.0f);
v.SetY(e.Event.RawY - v.Height / 2.0f);
}
}
Any suggestions ?
Modify your code as below ,it works fine on my side .
float dX, dY;
private void TextView_Touch(object sender, Android.Views.View.TouchEventArgs e)
{
TextView view = (TextView)sender;
int X = (int)e.Event.RawX;
int Y = (int)e.Event.RawY;
switch (e.Event.Action)
{
case MotionEventActions.Down:
dX = view.GetX() - X;
dY = view.GetY() - Y;
break;
case MotionEventActions.Move:
view.Animate().X(X + dX).Y(Y + dY).SetDuration(0).Start();
break;
}
}
Refer to https://stackoverflow.com/a/31094315/8187800.
I am trying to implement horizontal and vertical scrolling for a Recycler view at the same time.I have to show a table of 8 columns, so I plan to implement horizontal and vertical scrolling at the same time.
I tried HorizontalScrollView in list row but it is scrolling horizontally in one row.
I also tried the HorizontalScrollView as the parent of recyclerview but its not working
list_row.xml
<?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:focusable="true"
android:paddingLeft="16dp"
android:paddingRight="16dp"
android:paddingTop="10dp"
android:paddingBottom="10dp"
android:clickable="true"
android:background="?android:attr/selectableItemBackground"
android:orientation="vertical">
<TextView
android:id="#+id/title"
android:textColor="#color/title"
android:textStyle="bold"
android:layout_alignParentTop="true"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="aaa"/>
<TextView
android:layout_toRightOf="#+id/title"
android:id="#+id/genre"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="20dp"
android:text="bbb"/>
<TextView
android:layout_toRightOf="#+id/genre"
android:id="#+id/year"
android:textColor="#color/year"
android:layout_width="wrap_content"
android:layout_alignParentRight="true"
android:layout_marginLeft="20dp"
android:layout_height="wrap_content"
android:text="ccc"/>
</RelativeLayout>
Activity_main.xml
<?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="fill_parent"
android:orientation="horizontal" >
<HorizontalScrollView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:fillViewport="true" >
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:orientation="horizontal" >
<android.support.v7.widget.RecyclerView
android:id="#+id/recycler_view"
android:layout_width="match_parent"
android:layout_height="wrap_content"/>
</LinearLayout>
</HorizontalScrollView>
</LinearLayout>
can any one please tell me an idea.
The best solution i found so far to have horizontal and vertical scrolling on one view is to put it inside one FrameLayout. Then your view must implement OnTouch (you can do this in your activity to) and you just have to scroll it as the touch pointer moves.
Here is an example :
xml :
<FrameLayout
android:id="#+id/TwoWaysScrollableContainer"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:clipToPadding="false">
<YourView
android:id="#+id/GridContainer"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:clipToPadding="false" />
</FrameLayout>
C# (i use xamarin, but Java wouldn't have so many differencies i think)
:
public class MyActivity : Activity
{
private MyView _myView; //Can be GridView, relative layout or wathever
private float _startX, _startY,_prevDx, _prevDy, _dx,_dy;
protected override void OnCreate(Bundle bundle)
{
base.OnCreate(bundle);
_myView = FindViewById<MyView>(Resource.Id.GridContainer);
}
public bool OnTouch(View v, MotionEvent e)
{
switch (e.Action)
{
case MotionEventActions.Down:
{
mode = Mode.DRAG;
startX = e.GetX() - prevDx;
startY = e.GetY() - prevDy;
break;
}
case MotionEventActions.Move:
{
/* you also could add logic to prevent your view from scrolling out of you grid bounds*/
if (mode == Mode.DRAG)
{
dx = startX - e.GetX();
dy = startY - e.GetY();
_myView.ScrollBy((int)(dx), (int)(dy));
startX = e.GetX();
startY = e.GetY();
}
break;
}
case MotionEventActions.Up:
{
mode = Mode.NONE;
prevDx = dx;
prevDy = dy;
break;
}
}
return true;
}
}
I know this doesn't answer your question directly ( i don't know much about recycler view), but i hope it can still help you. I used this for a tile engine and it did the trick very well.
I've been trying to measure the pixel dimensions of a view within a RelativeLayout that's within another RelativeLayout:
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="60"
>
...
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_below="#id/labels_placeholder"
android:id="#+id/player_section_layout"
>
<LinearLayout
android:id="#+id/player_section_background"
android:layout_height="match_parent"
android:layout_width="match_parent"
android:orientation="horizontal"
android:weightSum="100">
<!--The view above is what I'm trying to measure-->
<LinearLayout
android:id="#+id/player_section_background_left"
android:layout_height="match_parent"
android:layout_width="0dp"
android:layout_weight="50"
android:background="#AAAAAA"
android:orientation="horizontal" />
<LinearLayout
android:id="#+id/player_section_background_right"
android:layout_height="match_parent"
android:layout_width="0dp"
android:layout_weight="50"
android:background="#DD0000"
android:orientation="horizontal" />
</LinearLayout>
<HorizontalScrollView
android:id="#+id/player_section"
android:layout_height="match_parent"
android:layout_width="match_parent"
android:layout_alignTop="#id/player_section_background">
<ImageView
android:id="#+id/waveform_placeholder"
android:layout_height="wrap_content"
android:layout_width="wrap_content"
android:scaleType="centerInside"
/>
</HorizontalScrollView>
</RelativeLayout>
</RelativeLayout>
I tried calling getMeasuredHeight() and getMeasuredWidth() right after referring to it in onCreateView() of the fragment:
waveformBackground = (LinearLayout)result.findViewById(R.id.player_section_background);
waveformBackground.post(new Runnable() {
#Override
public void run() {
Log.i("bckg_layout_dims", waveformBackground.getMeasuredWidth()+" "+waveformBackground.getMeasuredHeight());
}
});
And it returns 0 for both.
I did hear something about it not working before the view is being drawn, but I don't know when exactly it finishes drawing. Is it after OnCreateView, and if so, can I call it in OnActivityResult?
The problem you are facing is because the view is being drawn after you ask for the height and width. I used a ViewTreeObserver which constantly listens for changes in the views, and can access the measurements after the views has been drawn. Im not sure this is the best solution for your problem but you should look into it. Here's an example:
mTitleContainer.getViewTreeObserver().addOnGlobalLayoutListener(
new ViewTreeObserver.OnGlobalLayoutListener() {
#Override
public void onGlobalLayout() {
int toolBarHeight = mTitle.getHeight() + mSubtitle.getHeight() + (int) TOOLBARPADDING;
if (toolBarHeight != mLastTitleHeight) {
CollapsingToolbarLayout.LayoutParams layoutParams = (CollapsingToolbarLayout.LayoutParams) mTitleToolbar.getLayoutParams();
layoutParams.height = toolBarHeight;
mTitleToolbar.setLayoutParams(layoutParams);
mLastTitleHeight = toolBarHeight;
}
}
}
);
How to implament "Parallax Animations" http://imgur.com/ah4l5oj.gif
if my scollable view (listview and scrollview) are placed inside fragments in viewpager?
MainLayout
<LinearLayout
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical">
<RelativeLayout
android:id="#+id/header_holder"
android:layout_width="match_parent"
android:layout_height="#dimen/video_holder_size"
android:background="#color/dark_gray">
<ImageView
android:id="#+id/im_photo"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:scaleType="centerCrop" />
<TextView
android:id="#+id/tv_artist_title"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_alignParentLeft="true"
android:layout_marginBottom="16dip"
android:layout_marginLeft="16dip"
android:fontFamily="sans-sarif"
android:text="#string/artist_bio"
android:textColor="#color/white"
android:textSize="25sp" />
</RelativeLayout>
<com.astuetz.PagerSlidingTabStrip
android:id="#+id/tabs"
xmlns:slider="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="#dimen/controll_size"
slider:pstsIndicatorHeight="0dip"
slider:pstsPaddingMiddle="true"
slider:pstsTextAllCaps="true"
slider:pstsTextColorSelected="#color/white" />
<android.support.v4.view.ViewPager
android:id="#+id/video_body_pager"
android:layout_width="match_parent"
android:layout_height="0dip"
android:layout_weight="1"
android:animationCache="false" />
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:layout_alignParentTop="true"
android:background="#drawable/shadow_concierge_list_upper"
android:gravity="left|center_vertical"
android:orientation="horizontal">
<ImageButton
android:id="#+id/ibtn_back"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_margin="8dip"
android:background="#drawable/ibtn_transparent"
android:padding="8dip"
android:src="#drawable/ic_action_back" />
</LinearLayout>
I tried to change view size by setting LayoutParams according to scroll delta, by performance is very poor
relatedHeight -= dY;// dY is a scroll delta
Log.e(getClass().getSimpleName(),"height "+relatedHeight+", dY "+dY);
if(relatedHeight < 0){
relatedHeight = 0;
} else if(relatedHeight > originalHeight){
relatedHeight = originalHeight;
} else{
LinearLayout.LayoutParams params =
(LinearLayout.LayoutParams) headerHolder.getLayoutParams();
params.height = (int) relatedHeight;
headerHolder.setLayoutParams(params);
}
I solved it using observableListview , otto bus and ViewHelper.
In pager fragment, I attach list.setScrollViewCallbacks(this); to my list.
In callback I pass offset to Bus
#Override
public void onScrollChanged(int scrollY, boolean firstScroll, boolean dragging){
BusProvider.getInstance().post(new ScrollOffset(0, scrollY));
}
#Override
public void onDownMotionEvent(){
}
#Override
public void onUpOrCancelMotionEvent(ScrollState scrollState){
}
In main fragment, I use viewhelper to translate header and viewpager
#Subscribe
public void moveHeader(ScrollOffset event){
ViewHelper.setTranslationY(headerHolder, -event.getY() / 2);
ViewHelper.setTranslationY(pager,headerHolder.getHeigh() -event.getY()/2);
int baseColor = getResources().getColor(R.color.dark_gray);
float alpha = Math.min(1, (float) event.getY()*10 / (originalHeight ));
appBarHolder.setBackgroundColor(ScrollUtils.getColorWithAlpha(alpha, baseColor));
}
I have to define 5 layouts on the screen and place them like a 3x3 grid. Layouts is empty.
At some moment I want programmatically to add some view on one layout and that view mustn't grows over allocated size of layout. In other words I want to have layout in which to put any view and it will be guaranty that it won't grows over that layout. Important note: I don't have rights to change manually size of added view, I only can to control its maximum size.
I have right now such layout:
<RelativeLayout
android:id="#+id/pluginsLayout"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_above="#+id/mainButtons"
android:layout_below="#+id/paramsLayout">
<RelativeLayout
android:id="#+id/capturingPluginLayout"
android:orientation="vertical"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1"
android:layout_gravity="fill_horizontal|left"
android:layout_above="#+id/processingPluginLayout">
</RelativeLayout>
<RelativeLayout
android:id="#+id/processingPluginLayout"
android:orientation="vertical"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1"
android:layout_gravity="fill_horizontal|left"
android:layout_above="#+id/filterPluginLayout">
</RelativeLayout>
<RelativeLayout
android:id="#+id/filterPluginLayout"
android:orientation="vertical"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1"
android:layout_gravity="fill_horizontal|left|bottom"
android:layout_alignParentBottom="true"
android:layout_alignParentLeft="true">
</RelativeLayout>
<RelativeLayout
android:id="#+id/exportPluginLayout"
android:orientation="vertical"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1"
android:layout_gravity="fill_horizontal|right"
android:layout_above="#+id/viewfinderPluginLayout">
</RelativeLayout>
<RelativeLayout
android:id="#+id/viewfinderPluginLayout"
android:orientation="vertical"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1"
android:layout_gravity="fill_horizontal|bottom|right"
android:layout_toLeftOf="#+id/filterPluginLayout"
android:layout_alignParentBottom="true"
android:layout_alignParentRight="true">
</RelativeLayout>
</RelativeLayout>
And I added new view in code:
public void addVFPluginView(View view)
{
((RelativeLayout)MainScreen.thiz.findViewById(R.id.viewfinderPluginLayout)).addView(view);
}
I expect to got like this behaviour:
But I got only this, view fill entire parent layout:
Note: I use API8 (don't have GridLayout)
u can use grid layout in API8.
I've managed to solve this issue.
The main idea was to control view's sizes by myself programmatically.
I calculate appropriate proportion for each zone and when somebody add a new view to some of this layout I check suitability of the size of this view to the allocated size of layout. If size is not suitable I modify LayoutParams for this View.
Here is the xml of empty layouts:
<RelativeLayout
android:id="#+id/pluginsLayout"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_above="#+id/mainButtons"
android:layout_below="#+id/paramsLayout">
<LinearLayout
android:id="#+id/capturePluginLayout"
android:orientation="vertical"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_alignParentTop="true">
</LinearLayout>
<LinearLayout
android:id="#+id/processingPluginLayout"
android:orientation="vertical"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_centerVertical="true">
</LinearLayout>
<LinearLayout
android:id="#+id/filterPluginLayout"
android:orientation="vertical"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_alignParentBottom="true">
</LinearLayout>
<LinearLayout
android:id="#+id/exportPluginLayout"
android:orientation="vertical"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:layout_alignParentTop="true">
</LinearLayout>
<RelativeLayout
android:id="#+id/viewfinderPluginLayout"
android:orientation="vertical"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:layout_alignParentBottom="true">
</RelativeLayout>
</RelativeLayout>
And like that I manage the size of adding views:
public void addVFPluginView(View view)
{
//Get maximum width and height for such plugins
int layoutHeight = this.getViewfinderLayoutHeight();
int layoutWidth = this.getViewfinderLayoutWidth();
//Calculate appropriate size of added plugin's view
android.widget.RelativeLayout.LayoutParams viewLayoutParams = (android.widget.RelativeLayout.LayoutParams)view.getLayoutParams();
viewLayoutParams = this.getTunedRelativeLayoutParams(view, viewLayoutParams, layoutWidth, layoutHeight);
//Get fixed maximum size for this plugin type
public int getViewfinderLayoutWidth()
{
return ((RelativeLayout)MainScreen.thiz.findViewById(R.id.pluginsLayout)).getWidth()/2;
}
public int getViewfinderLayoutHeight()
{
return (int)(((RelativeLayout)MainScreen.thiz.findViewById(R.id.pluginsLayout)).getHeight()*0.7);
}
((RelativeLayout)MainScreen.thiz.findViewById(R.id.viewfinderPluginLayout)).addView(view, viewLayoutParams);
}
android.widget.RelativeLayout.LayoutParams getTunedRelativeLayoutParams(View view, android.widget.RelativeLayout.LayoutParams currParams, int goodWidth, int goodHeight)
{
int viewHeight, viewWidth;
if(currParams != null)
{
viewHeight = currParams.height;
viewWidth = currParams.width;
if(viewHeight > goodHeight || viewHeight <= 0)
viewHeight = goodHeight;
if(viewWidth > goodWidth || viewWidth <= 0)
viewWidth = goodWidth;
currParams.width = viewWidth;
currParams.height = viewHeight;
view.setLayoutParams(currParams);
}
else
{
currParams = new android.widget.RelativeLayout.LayoutParams(goodWidth, goodHeight);
view.setLayoutParams(currParams);
}
return currParams;
}
Finally, next issue is for several views with suitable sizes but in sum they're bigger than allocated size. Maybe I'll just straightly count sizes of views and if the sum with the size of next adding view will be more than allocated size I just disallow to add this view.