I programmatically created a TextView in TableLayout, it automatically sets the height and width.
Can I change the height and width of the TextView manually inside the TableLayout?
Use
TableLayout.LayoutParams params = new TableLayout.LayoutParams();
params.height = HEIGHT;
params.width = WIDTH;
textView.setLayoutParams(params);
same for other parameters like margin, padding etc
Use
LayoutParams lParams = new LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.MATCH_PARENT, 1);
lParams.setMargins(leftMargin, topMargin, rightMargin, bottomMargin);
You can set the height and width programmatically using the following code.
TableRow.LayoutParams param = new TableRow.LayoutParams();
paramColumn1.height = TableRow.LayoutParams.WRAP_CONTENT;
paramColumn1.width = TableRow.LayoutParams.WRAP_CONTENT;
textView1.setLayoutParams(param);
You can also set other properties using this way.
Is the source of the slider and the lesson link:
http://www.oodlestechnologies.com/blogs/Facebook-Style-Slide-Menu-In-Android
In this case, the width of the file "left_menu.xml" determined TextView (android:layout_width="260dp")
How do I set the width to "LinearLayout" file "left_menu.xml" depending on the device screen? For example, I want the width of the "LinearLayout" was always 1/3 of the screen device? Or any way to set the width of the TextView 1/3 of the width of the device screen.
To set the LinearLayout or TextView width to 1/3 of the device screen:
first of all get the device screen width:
Display display = getWindowManager().getDefaultDisplay();
Point size = new Point();
try {
display.getRealSize(size);
} catch (NoSuchMethodError err) {
display.getSize(size);
}
int width = size.x;
int height = size.y;
now just create a LayoutParams and set it to the Text:
LinearLayout.LayoutParams lp = new LinearLayout.LayoutParams((int)(width/3),
LinearLayout.LayoutParams.WRAP_CONTENT); // or set height to any fixed value you want
your_layout.setLayoutParams(lp);
// OR
your_textView.setLayoutParams(lp);
LinearLayout linear = (LinearLayout) findViewById(R.id.ll);
LinearLayout.LayoutParams params = new LinearLayout.LayoutParams(LinearLayout.LayoutParams.MATCH_PARENT, LinearLayout.LayoutParams.WRAP_CONTENT);
linear.setLayoutParams(params);
As you can see, you can set Integer values for the LinearLayout.LayoutParams() constructor, like this:
LinearLayout.LayoutParams cellParams = new LinearLayout.LayoutParams(0, 100);
The costructor wants pixels and not dp(Density Pixels), here's a formula to convert PXs from DPs:
(int) (<numberOfDPs> * getContext().getResources().getDisplayMetrics().density + 0.5f)
LinearLayout layout = (LinearLayout)findViewById(R.id.ll);
LayoutParams params = (LayoutParams) layout.getLayoutParams();
params.height = 100;
params.width = 100;
The above answers are correct. I'll just suggest future readers to take a look at their xml layout file and be sure that the LinearLayout element is not using weight attribute. If so, consider updating weight in your LayoutParams object.
Another good practice is to retrieve the layout params object from the view you're trying to adjust, instead of creating one from scratch and having to set all the values.
LinearLayout YOUR_LinearLayout =(LinearLayout)findViewById(R.id.YOUR_LinearLayout)
LinearLayout.LayoutParams param = new LinearLayout.LayoutParams(
/*width*/ ViewGroup.LayoutParams.MATCH_PARENT,
/*height*/ 100,
/*weight*/ 1.0f
);
YOUR_LinearLayout.setLayoutParams(param);
The easy way to do that, set value of layoutParams, and please notice this size is not in DP.
view.layoutParams.width = 400;
view.layoutParams.height = 150;
view.requestLayout();
I try change layout height programmatically. I have two buttons. In one button I change my layout position and second button I try to receive save position witch I was first time.
<RelativeLayout
android:id="#+id/popaplayout"
android:layout_width="fill_parent"
android:layout_height="200dp" >
This is a my layout
and in first button I wrote
RelativeLayout.LayoutParams parms = new RelativeLayout.LayoutParams(
RelativeLayout.LayoutParams.FILL_PARENT,
RelativeLayout.LayoutParams.FILL_PARENT);
parms.addRule(RelativeLayout.BELOW, R.id.movies_title_layout);
scrollpopap.setLayoutParams(parms);
scrollpopap.setScrollingEnabled(true);
and second button
RelativeLayout.LayoutParams rel_btn = new RelativeLayout.LayoutParams(
ViewGroup.LayoutParams.WRAP_CONTENT, 300);
rel_btn.addRule(RelativeLayout.ALIGN_PARENT_BOTTOM);
scrollpopap.setLayoutParams(rel_btn);
scrollpopap.setScrollingEnabled(false);
In xml file I wrote height 200dp and programmatically 300 and there are different height. How I can wrote save height in programmatically?
if anyone knows solution please help me
thanks
First convert 200 dp into pixels -
final float scale = getContext().getResources().getDisplayMetrics().density;
int pixels = (int) (200 * scale + 0.5f);
Then set programatically,
RelativeLayout.LayoutParams rel_btn = new RelativeLayout.LayoutParams(
ViewGroup.LayoutParams.WRAP_CONTENT, pixels);
rel_btn.addRule(RelativeLayout.ALIGN_PARENT_BOTTOM);
scrollpopap.setLayoutParams(rel_btn);
scrollpopap.setScrollingEnabled(false);
Convert DP to PX like this.
final float scale = getContext().getResources().getDisplayMetrics().density;
int px = (int) (100 * scale + 0.5f); // replace 100 with your dimensions
Set Some layout_gravity of relative layout. and Change height and width by java code.
RelativeLayout rl = (RelativeLayout) findViewById(R.id.yourId);
rl.getLayoutParams().height = px;
rl.getLayoutParams().width = px;
If you intending to change RelativeLayout height, then this help.
RelativeLayout relativeLayout = (RelativeLayout) findViewById(R.id.yourId);
relativeLayout.getLayoutParams().height = 100;
relativeLayout.getLayoutParams().width = 100;
Use this
RelativeLayout layout = (RelativeLayout) findViewById(R.id.yourlayout_id);
// Gets the layout params that will allow you to resize the layout
LayoutParams params = layout.getLayoutParams();
params.height = 320;
params.width = 320;
For Kotlin Users who want to set Height & Width from Dimens file, use this:
relativeLayout.layoutParams.width = relativeLayout.context
.resources.getDimensionPixelSize(R.dimen.width)
relativeLayout.layoutParams.height = relativeLayout.context
.resources.getDimensionPixelSize(R.dimen.height)
I am resizign LinearLayout from it's original height to 0 with:
ViewGroup.LayoutParams params = getLayoutParams();
params.height = newHeight;
requestLayout();
Everything works except newHeight = 0 - layout's height changes back to its original height. How can I avoid it ?
Setting visibility to GONE if newHeight == 0 does not help.
Try this.....
LinearLayout layout = (LinearLayout)findViewById(R.id.yourLayoutId);
LinearLayout.LayoutParams lp = (LayoutParams) layout.getLayoutParams();
lp.height = 0;
layout = (LinearLayout)findViewById(R.id.linearTop);
layout.getLayoutParams().height = ViewGroup.LayoutParams.WRAP_CONTENT;
ViewGroup.LayoutParams params = layout.getLayoutParams();
params.height = ViewGroup.LayoutParams.WRAP_CONTENT;
layout.setLayoutParams(params);
Wouldn't you have to set the height of params using setBaseAttributes()? The int height = ... will not have any influence on params...
Are you sure that you get the actual parameters object, not the copy of one?
I would try the following code:
ViewGroup.LayoutParams params = getLayoutParams();
params.height = newHeight;
setLayoutParams(params);
requestLayout();
Try setting a new layout params object then. This should work
ViewGroup.LayoutParams lp = new ViewGroup.LayoutParams(LayoutParams.MATCH_PARENT,0);
layout.setLayoutParams(lp);
I want to add an unknown number of ImageView views to my layout with margin. In XML, I can use layout_margin like this:
<ImageView android:layout_margin="5dip" android:src="#drawable/image" />
There is ImageView.setPadding(), but no ImageView.setMargin(). I think it's along the lines of ImageView.setLayoutParams(LayoutParams), but not sure what to feed into that.
Does anyone know?
android.view.ViewGroup.MarginLayoutParams has a method setMargins(left, top, right, bottom). Direct subclasses are: FrameLayout.LayoutParams, LinearLayout.LayoutParams and RelativeLayout.LayoutParams.
Using e.g. LinearLayout:
LinearLayout.LayoutParams lp = new LinearLayout.LayoutParams(LinearLayout.LayoutParams.WRAP_CONTENT, LinearLayout.LayoutParams.WRAP_CONTENT);
lp.setMargins(left, top, right, bottom);
imageView.setLayoutParams(lp);
MarginLayoutParams
This sets the margins in pixels. To scale it use
context.getResources().getDisplayMetrics().density
DisplayMetrics
image = (ImageView) findViewById(R.id.imageID);
MarginLayoutParams marginParams = new MarginLayoutParams(image.getLayoutParams());
marginParams.setMargins(left_margin, top_margin, right_margin, bottom_margin);
RelativeLayout.LayoutParams layoutParams = new RelativeLayout.LayoutParams(marginParams);
image.setLayoutParams(layoutParams);
All the above examples will actually REPLACE any params already present for the View, which may not be desired. The below code will just extend the existing params, without replacing them:
ImageView myImage = (ImageView) findViewById(R.id.image_view);
MarginLayoutParams marginParams = (MarginLayoutParams) image.getLayoutParams();
marginParams.setMargins(left, top, right, bottom);
Kevin's code creates redundant MarginLayoutParams object. Simpler version:
ImageView image = (ImageView) findViewById(R.id.main_image);
RelativeLayout.LayoutParams lp = new RelativeLayout.LayoutParams(image.getLayoutParams());
lp.setMargins(50, 100, 0, 0);
image.setLayoutParams(lp);
If you want to change imageview margin but leave all other margins intact.
Get MarginLayoutParameters of your image view in this case: myImageView
MarginLayoutParams marginParams = (MarginLayoutParams) myImageView.getLayoutParams();
Now just change the margin you want to change but leave the others as they are:
marginParams.setMargins(marginParams.leftMargin,
marginParams.topMargin,
150, //notice only changing right margin
marginParams.bottomMargin);
I use simply this and works great:
ImageView imageView = (ImageView) findViewById(R.id.image_id);
RelativeLayout.LayoutParams layoutParams = (RelativeLayout.LayoutParams) imageView.getLayoutParams();
layoutParams.setMargins(left, top, right, bottom);
imageView.setLayoutParams(layoutParams);
setMargins()'s unit is pixel not dp. If you want to set margin in dp, just inside your values/dimens.xml file create your dimensions like:
<resources>
<dimen name="right">16dp</dimen>
<dimen name="left">16dp</dimen>
</resources>
and access like:
getResources().getDimension(R.dimen.right);
If you use kotlin, this can be simplified by creating an extension function
fun View.setMarginExtensionFunction(left: Int, top: Int, right: Int, bottom: Int) {
val params = layoutParams as ViewGroup.MarginLayoutParams
params.setMargins(left, top, right, bottom)
layoutParams = params
}
Now all you need is a view, and this extension function can be used anywhere.
val imageView = findViewById(R.id.imageView)
imageView.setMarginExtensionFunction(0, 0, 0, 0)
You can use this method, in case you want to specify margins in dp:
private void addMarginsInDp(View view, int leftInDp, int topInDp, int rightInDp, int bottomInDp) {
DisplayMetrics dm = view.getResources().getDisplayMetrics();
LinearLayout.LayoutParams lp = new LinearLayout.LayoutParams(LinearLayout.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.WRAP_CONTENT);
lp.setMargins(convertDpToPx(leftInDp, dm), convertDpToPx(topInDp, dm), convertDpToPx(rightInDp, dm), convertDpToPx(bottomInDp, dm));
view.setLayoutParams(lp);
}
private int convertDpToPx(int dp, DisplayMetrics displayMetrics) {
float pixels = TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, dp, displayMetrics);
return Math.round(pixels);
}
Answer from 2020 year :
dependencies {
implementation "androidx.core:core-ktx:1.2.0"
}
and cal it simply in your code
view.updateLayoutParams<ViewGroup.MarginLayoutParams> {
setMargins(5)
}
create layout dynamically and set its parameter as setmargin() will not work directly on an imageView
ImageView im;
im = (ImageView) findViewById(R.id.your_image_in_XML_by_id);
RelativeLayout.LayoutParams layout = new RelativeLayout.LayoutParams(im.getLayoutParams());
layout.setMargins(counter*27, 0, 0, 0);//left,right,top,bottom
im.setLayoutParams(layout);
im.setImageResource(R.drawable.yourimage)
For me this worked:
int imgCarMarginRightPx = (int)TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, definedValueInDp, res.getDisplayMetrics());
MarginLayoutParams lp = (MarginLayoutParams) imgCar.getLayoutParams();
lp.setMargins(0,0,imgCarMarginRightPx,0);
imgCar.setLayoutParams(lp);
sample code is here ,its very easy
LayoutParams params1 = (LayoutParams)twoLetter.getLayoutParams();//twoletter-imageview
params1.height = 70;
params1.setMargins(0, 210, 0, 0);//top margin -210 here
twoLetter.setLayoutParams(params1);//setting layout params
twoLetter.setImageResource(R.drawable.oo);
In Kotlin you can write it in more pleasant way
myView.layoutParams = LinearLayout.LayoutParams(
RadioGroup.LayoutParams.MATCH_PARENT, RadioGroup.LayoutParams.WRAP_CONTENT
).apply {
setMargins(12, 12, 12, 12)
}
Using a method similar to this might save you some headaches in some situations.
If you have two passes of programmatical tinkering with margins it is safer to check if there are already some layoutParams set. If there are some margins already one should increase them and not replace them:
public void addMargins(View v, int left, int top, int right, int bottom) {
LinearLayout.LayoutParams params = (LinearLayout.LayoutParams) v.getLayoutParams();
if (params == null)
params = new LinearLayout.LayoutParams(ViewGroup.LayoutParams.WRAP_CONTENT,
ViewGroup.LayoutParams.WRAP_CONTENT);
int oldLeft = params.leftMargin;
int oldTop = params.topMargin;
int oldRight = params.rightMargin;
int oldBottom = params.bottomMargin;
params.setMargins(oldLeft + left, oldTop + top, oldRight + right, oldBottom + bottom);
v.setLayoutParams(params);
}
Here is an example to add 8px Margin on left, top, right, bottom.
ImageView imageView = new ImageView(getApplicationContext());
ViewGroup.MarginLayoutParams marginLayoutParams = new ViewGroup.MarginLayoutParams(
ViewGroup.MarginLayoutParams.MATCH_PARENT,
ViewGroup.MarginLayoutParams.WRAP_CONTENT
);
marginLayoutParams.setMargins(8, 8, 8, 8);
imageView.setLayoutParams(marginLayoutParams);
We can create Linear LayoutParams & use resources.getDimensionPixelSize for dp value.
val mContext = parent.context
val mImageView = AppCompatImageView(mContext)
mImageView.setBackgroundResource(R.drawable.payment_method_selector)
val height = mContext.resources.getDimensionPixelSize(R.dimen.payment_logo_height)
val width = mContext.resources.getDimensionPixelSize(R.dimen.payment_logo_width)
val padding = mContext.resources.getDimensionPixelSize(R.dimen.spacing_small_tiny)
val margin = mContext.resources.getDimensionPixelSize(R.dimen.spacing_small)
mImageView.layoutParams = LinearLayout.LayoutParams(width, height).apply {
setMargins(margin, margin, 0, 0)
}
mImageView.setPadding(padding, padding, padding, padding)