Develop Reference

How can I place two views depending on their width?

In our project we have such a case: we have two textviews (let's say, #id/text_view_1 and #id/text_view_2). We should place them horizontally (#id/text_view_1 and then #id/text_view_2) if their width combined is less than the width of their parent or vertically (text_view_2 above text_view_1) if they are too wide.
Right now the best solution I've come up with looks something like this:
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/parent"
android:layout_width="match_parent"
android:layout_height="match_parent">
<TextView
android:id="#+id/text_view_above_2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentStart="true"
android:layout_alignParentTop="true" />
<TextView
android:id="#+id/text_view_1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignBaseline="#+id/text_view_2_right"
android:layout_alignBottom="#+id/text_view_2_right"
android:layout_alignParentStart="true" />
<TextView
android:id="#+id/text_view_right_2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="#+id/text_view_2_above"
android:layout_toEndOf="#+id/text_view_1" />
</RelativeLayout>
Here is the logic of toggling visibility of text_views
private void toggleVisibility() {
TextView textView1 = (TextView) findViewById(R.id.text_view_1);
TextView textViewAbove2 = (TextView) findViewById(R.id.text_view_above_2);
TextView textViewRight2 = (TextView) findViewById(R.id.text_view_right_2);
textView1.measure(0, 0);
textViewAbove2.measure(0, 0);
textViewRight2.measure(0, 0);
View parent = findViewById(R.id.parent);
parent.measure(0, 0);
if (textView1.getMeasuredWidth() + textViewRight2.getMeasuredWidth() < parent.getMeasuredWidth()) {
textViewAbove2.setVisibility(View.GONE);
textViewRight2.setVisibility(View.VISIBLE);
} else {
textViewRight2.setVisibility(View.GONE);
textViewAbove2.setVisibility(View.VISIBLE);
}
}
Is there a solution more "beautiful" and shorter than the one I've described? I guess there is a way to do it with ConstraintLayout instead of RelativeLayout but I'm not sure.
EDIT 1: probably I have to provide the result I want to see. Here is what an activity supposed to look like if both views are short:
And here is what it should look like if views are too long:

Take a look at FlexboxLayout.
Here is a solution using FlexboxLayout:
<com.google.android.flexbox.FlexboxLayout
android:id="#+id/parent"
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:flexWrap="wrap">
<TextView
android:id="#+id/textView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_margin="16dp"
android:text="This is a short string." />
<TextView
android:id="#+id/textView2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_margin="16dp"
android:text="This is another short string." />
</com.google.android.flexbox.FlexboxLayout>
Using the same XML with a longer string for the first text view yields the following:

Solution:If you want to set TextView as per their width requirements then you will simply use LinearLayout as parent with width wrap_content and for both child TextViews also give width 'wrap_content'

try using wrap_content and put these child text views inside a parent LinearLayout , give wrap_content as width for both of the child textviews. It will place according to the content in those textviews.
If You want to put Views Horizontally --
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/parent"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:orientation="horizontal">
<TextView
android:id="#+id/text_view1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
/>
<TextView
android:id="#+id/text_view2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
/>
</LinearLayout>
If You want to put Views Vertically --
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/parent"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="vertical">
<TextView
android:id="#+id/text_view1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
/>
<TextView
android:id="#+id/text_view2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
/>
</LinearLayout>

Try using percentagelayout . This might help. For more details provide desired output.

RelativeLayout View to right of TextView

I got following simple Layout. The problem can be reproduced in the android studio designer:
<?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">
<TextView
android:id="#+id/x"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerVertical="true"
android:layout_marginEnd="#dimen/margin_small"
android:layout_marginRight="#dimen/margin_small"
android:text="#string/long_string"
android:textAppearance="?android:attr/textAppearanceSmall"/>
<CheckBox
android:id="#+id/y"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_toRightOf="#+id/x"
android:layout_toEndOf="#+id/x"
android:layout_centerVertical="true" />
</RelativeLayout>
This layout works fine if the text length of the textview is short. The checkbox is placed on the right of the textview. But if the text gets long and even wraps maybe, then the checkbox is pushed out of the view. It is not visible anymore. I would like that the checkbox is always visible on the right of the textview even, if it fills the whole width of the screen.
I tried to rewrite the layout with a LinearLayout which doesn't work either.
<?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="horizontal">
<TextView
android:id="#+id/x"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginEnd="#dimen/margin_small"
android:layout_marginRight="#dimen/margin_small"
android:text="#string/long_string"
android:textAppearance="?android:attr/textAppearanceSmall"/>
<CheckBox
android:id="#+id/y"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
/>
</LinearLayout>
Do you know a trick to to achieve this with relative layout? I would somehow expect this behaviour from relative layout by default. Thanks ;)

This is working for me: make checkBox alignParentRight and make TextView toLeftOf it:
<?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">
<TextView
android:id="#+id/x"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerVertical="true"
android:layout_toLeftOf="#+id/y"
android:text="This is very-very-very looooooooooooong stringgggg, very-very, long-long"
android:textAppearance="?android:attr/textAppearanceSmall"/>
<CheckBox
android:id="#+id/y"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerVertical="true"
android:layout_alignParentRight="true"/>
</RelativeLayout>
Edit. You can include this Relative Layout into other (parent) layout:
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent">
<RelativeLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerVertical="true"
android:gravity="left">
<TextView
android:id="#+id/x"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerVertical="true"
android:layout_toLeftOf="#+id/y"
android:text="this is veryyyyy yyyyyyyyyy yyyyyy yyy loooooo oooooooo ooon nnggggg gggg striiii iiiiin gggggg ggggg ggggggg ggg"
android:textAppearance="?android:attr/textAppearanceSmall"/>
<CheckBox
android:id="#+id/y"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:layout_alignParentEnd="true"
android:layout_centerVertical="true" />
</RelativeLayout>
</RelativeLayout>
It's also working. If you put android:gravity="left" into Relative layout, it will locate its content on the left side.

One way out would be to put the textview and checkbox in a linear layout with orientation horizontal. Set width of checkbox to be whatever you want (a constant) and the width of textbox to be 0dp and layout_weight of 1.

You should put the property layout_weight to make your views (TextView and Checkbox) have a deff space in the screen instead of use a hard value
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="horizontal">
<TextView
android:id="#+id/x"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="0.9"
android:layout_marginEnd="#dimen/margin_small"
android:layout_marginRight="#dimen/margin_small"
android:text="#string/long_string"
android:textAppearance="?android:attr/textAppearanceSmall"/>
<CheckBox
android:id="#+id/y"
android:layout_weight="0.1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
/>
</LinearLayout>

I guess the desired layout is not possible by default. I tried to do this using RelativeLayout, LinearLayout and TableLayout. It is technically understandable that the these layout do not support that behaviour. The relative layout would have to explicitly respect the case that an element on the left or right is minimal visible inside the parent even it is placed to left or right. Another solution would be if the table layout would allow a column to consume the rest of the space but respects min width of other columns as well.
For my case i wrote a workaround. I used the initial relative layout of my question but set a max width to the textview using following calculation:
DisplayMetrics displaymetrics = new DisplayMetrics();
context.getWindowManager().getDefaultDisplay().getMetrics(displaymetrics);
int displayWidth = displaymetrics.widthPixels;
That guarantees the checkbox to be visible. I know the solution could be hardly possible in scenarios where the given layout is embedded in a more complex layout.

Huge gap between imageview and textview

On my activity with fragments, I've some pages that have an image and some that don't. The layout is like this: Textview-Imageview-Textview, so when I there isn't an image I want the Textviews to be below each other. This is my XML:
<?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"
android:background="#006400">
<ScrollView
android:layout_width="fill_parent"
android:layout_height="match_parent">
<RelativeLayout
android:layout_width="fill_parent"
android:layout_height="fill_parent">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="New Text"
android:id="#+id/handling"
android:textColor="#ffffff"
android:textSize="20dp" />
<ImageView
android:layout_width="match_parent"
android:layout_height="200dp"
android:id="#+id/stilling"
android:layout_below="#id/handling"
android:layout_gravity="center_vertical" />
<TextView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:textAlignment="center"
android:text="New Text"
android:id="#+id/arabisk"
android:layout_below="#id/stilling"
android:layout_gravity="center"
android:textSize="18dp"
android:textColor="#ff0000" />
</RelativeLayout>
</ScrollView>
</LinearLayout>
This is what I get
EDIT:
My array of images
int[] billede = new int[18];
billede[1] = R.mipmap.sojle1;
billede[2] = R.mipmap.sojle4;
billede[3] = R.mipmap.sojle2;
billede[4] = R.mipmap.sojle3;
billede[6] = R.mipmap.sojle4;
billede[8] = R.mipmap.sojle6;
billede[10] = R.mipmap.sojle7;
billede[12] = R.mipmap.sojle8;
billede[15] = R.mipmap.sojle9;
stilling.setImageResource(billede[mPage]);
return view;

Set the visiblity to GONE
in your xml
android:visibility="GONE"
or via code
imageView.setVisibility(View.GONE);

Set ImageView visibility to Gone and your text view must be one below other like you want. Like this
stilling.setVisibility(View.GONE);

Use LinearLayout instead of RelativeLayout. And set visible View.GONE to hide ImageView.

View not showing in a relative layout in Android [duplicate]

This question already has answers here:
A view does not show inside a relative layout
(4 answers)
Closed 8 years ago.
I posted this already but i got new information that may help you to help me...
I have a problem with this layout and i cannot find out what is wrong. As you can see, there is a chronometer and a table inside a relative layout but the chronometer does not show, not even a blank space.
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/firstLayout"
android:layout_width="match_parent"
android:layout_height="match_parent"
>
<Chronometer
android:id="#+id/chrono"
android:textColor="#4169E1"
android:textSize="20sp"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerHorizontal="true"
android:text="Chronometer"
/>
<TableLayout
android:id="#+id/parentLayout"
android:layout_width="match_parent"
android:layout_height="match_parent"
>
</TableLayout>
</RelativeLayout>
So i tried changing the order of the chronometer and tablelayout. I tried also changing the layout_width and layout_height properties, but i got nothing. So i went to my java class and i found out that the issue might be here:
private final void createGameBoard(short gridSize) {
DisplayMetrics metrics = new DisplayMetrics();
getWindowManager().getDefaultDisplay().getMetrics(metrics);
TableLayout tableLayout;
tableLayout = (TableLayout) findViewById(R.id.parentLayout);
tableLayout.removeAllViews();
board = GameBoard.createGameBoard(this,
bitmap,
tableLayout,
(int) (metrics.widthPixels * metrics.density),
(int) ((metrics.heightPixels * metrics.density)-h1),
gridSize);
}
where GameBoard.createGameBoard is:
public static GameBoard createGameBoard(Context context,
Bitmap bitmap,
TableLayout parentLayout,
int width,
int height,
short gridSize) {
board = new GameBoard(context,
bitmap,
parentLayout,
width,
height,
gridSize);
return board;
}
So i guess that the problem displaying the chronometer comes from the creation of the gameboard, because of the metrics taken from the current window, which is used to set the height of the gameboard.
any suggestions?

Your xml code:
<Chronometer
android:id="#+id/chrono"
android:textColor="#4169E1"
android:textSize="20sp"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerHorizontal="true"
android:text="Chronometer"
/>
<TableLayout
android:id="#+id/parentLayout"
android:layout_width="match_parent"
android:layout_height="match_parent"
>
This will force TableLayout to be shown in full screen and so, Chronometer is being hidden.
Try changing like one of followings:
1.)
<Chronometer
android:id="#+id/chrono"
android:textColor="#4169E1"
android:textSize="20sp"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerHorizontal="true"
android:text="Chronometer"
/>
<TableLayout
android:id="#+id/parentLayout"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
>
Which will wrap content of table, so Chronometer will get space.
2.)
<Chronometer
android:id="#+id/chrono"
android:textColor="#4169E1"
android:textSize="20sp"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerHorizontal="true"
android:text="Chronometer"
/>
<TableLayout
android:id="#+id/parentLayout"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_below="#id/chrono"
>
This will force Chronometer to take full space below table layout after table layout is shown.
Hope this helps.

Which layout to use for a 2x2 image-based menu?

I am trying to create a screen (in portrait mode) that shows 4 images (same size, intended to scale down to fit screen), taking up the entire screen, breaking up the screen into quadrants (a tall, 2x2 grid). This will act as a main menu type of activity and each image should be clickable, in order to take the user to a different activity.
I have tried using a GridView inside a LinerLayout (using a lot from Google's GridView tutorial) but cannot get the images to all scale properly to fill the entire screen. I get extra margins around the images and/or scrolling of the entire screen.
I have also tried using a TableLayout, placing 2 images in each of the 2 rows. Visually, that worked perfectly. Unfortunately when using that, I cannot seem to reference the ImageView items in the TableLayout in my activity code (findViewById always returns null).
I feel like a TableLayout is really not the "right thing to do" but I would like to hear what others have to say. Either way, what should be done to accomplish my desired functionality?
Thanks.
Edit 1.1:
The relative layout works much better for getting things lined up. Now I'm just left with the issue where findViewById always returns null. Here is my code so far:
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:background="#color/homescreen_bgcolor"
>
<ImageView id="#+id/one"
android:layout_alignParentTop="true"
android:layout_alignParentLeft="true"
android:src="#drawable/item1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"/>
<ImageView id="#+id/two"
android:layout_alignParentTop="true"
android:layout_alignParentRight="true"
android:src="#drawable/item2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"/>
<ImageView id="#+id/three"
android:layout_alignParentBottom="true"
android:layout_alignParentLeft="true"
android:src="#drawable/item3"
android:layout_width="wrap_content"
android:layout_height="wrap_content"/>
<ImageView id="#+id/four"
android:layout_alignParentBottom="true"
android:layout_alignParentRight="true"
android:src="#drawable/item4"
android:layout_width="wrap_content"
android:layout_height="wrap_content"/>
</RelativeLayout>
public class HomeScreenActivity2 extends Activity {
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.homescreen2);
ImageView imageView = (ImageView) findViewById(R.id.one);
imageView.setClickable(true);
imageView.setOnClickListener(new View.OnClickListener() {
public void onClick(View view) {
Log.i("Test", "test");
}
});
}
}

Here is a sample layout showing how you can achieve a 2 X 2 grid that covers the entire screen using just a RelativeLayout.
<RelativeLayout 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" >
<View
android:id="#+id/centerVerticalShim"
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_centerVertical="true"
android:visibility="invisible" />
<View
android:id="#+id/centerHorizontalShim"
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_centerHorizontal="true"
android:visibility="invisible" />
<TextView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_above="#+id/centerVerticalShim"
android:layout_alignParentLeft="true"
android:layout_alignParentTop="true"
android:layout_toLeftOf="#+id/centerHorizontalShim"
android:background="#42A5F5"
android:gravity="center"
android:text="#string/one"
android:textColor="#FFFFFF" >
</TextView>
<TextView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_above="#+id/centerVerticalShim"
android:layout_alignParentRight="true"
android:layout_alignParentTop="true"
android:layout_toRightOf="#+id/centerHorizontalShim"
android:background="#EF5350"
android:gravity="center"
android:text="#string/two"
android:textColor="#FFFFFF" >
</TextView>
<TextView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_alignParentBottom="true"
android:layout_alignParentLeft="true"
android:layout_below="#+id/centerVerticalShim"
android:layout_toLeftOf="#+id/centerHorizontalShim"
android:background="#66BB6A"
android:gravity="center"
android:text="#string/three"
android:textColor="#FFFFFF" >
</TextView>
<TextView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_alignParentBottom="true"
android:layout_alignParentRight="true"
android:layout_below="#+id/centerVerticalShim"
android:layout_toRightOf="#+id/centerHorizontalShim"
android:background="#5C6BC0"
android:gravity="center"
android:text="#string/four"
android:textColor="#FFFFFF" >
</TextView></RelativeLayout>
The above layout results in this:

I think a TableLayout could work for you, but I'd recommend trying out RelativeLayout as well. You can basically pin your images to the four quadrants by using combinations of
android:layout_alignParentTop="true"
android:layout_alignParentRight="true"
android:layout_alignParentBottom="true"
android:layout_alignParentLeft="true"`
on your images.
I'm doing something similar in my app where I have multiple buttons on a homepage that can launch corresponding activities. RelativeLayout works fine, and it avoids nested Layout objects, which can hamper performance during render and layout procedures (if it gets out of hand).