Hello I need set a maxwidth to my tabs, but it is not a fix size it is going to be a porcentage of screen then I supose that I have to do it programmatically, but I not have idea how can I do it. Any help? thank you
Edit: I don't know how much tabs I have to draw, I get it from a service
Finally I created a custom view for my tab and calculate and set the screen porcentage programmatically
private void setTabView(List<String> rowList) {
for (int i = 0; i < rowList.size(); i++) {
View view = LayoutInflater.from(this).inflate(R.layout.custom_tab_item, null);
TextView tv = view.findViewById(R.id.tv_tab);
tv.setText(rowList.get(i));
DisplayMetrics displayMetrics = new DisplayMetrics();
getWindowManager().getDefaultDisplay().getMetrics(displayMetrics);
int width = displayMetrics.widthPixels;
tv.setMaxWidth(((int) (width * MAX_TAB_SIZE_PORCENT)));
try {
tabLayout.getTabAt(i).setCustomView(view);
} catch (Exception e) {
Timber.tag(TAG).i(e);
}
}
}
custom_tab_item is just a TextView
hope help :)
Related
I am creating buttons and adding them to a LinearLayout programmatically. However, I am struggling with changing the button sizes. In the code below, no matter what num I enter in deleteBtn.setWidth(num), and deleteBtn.setHeight(num), nothing changes.
private void populateHorizontalLayouts(CustomMessageEvent event) {
// Need to remove all views each time an user adds a number
// so that the same number is not rendered multiple times.
nameAndNumbersLayout.removeAllViews();
//displayedNamesAndNumbers.add(event.getCustomMessage());
for(int i =0; i < displayedNamesAndNumbers.size(); i++){
String displayedNumberAndName = displayedNamesAndNumbers.get(i);
LinearLayout horizontalLayout = new LinearLayout(view.getContext());
horizontalLayout.setOrientation(LinearLayout.HORIZONTAL);
horizontalLayout.setId(i);
Button deleteBtn = new Button(view.getContext());
deleteBtn.setId(i);
deleteBtn.setText("Delete");
deleteBtn.setWidth(5);
deleteBtn.setHeight(5);
TextView nameAndNumView = new TextView(view.getContext());
nameAndNumView.setId(i);
nameAndNumView.setText(displayedNumberAndName);
horizontalLayout.addView(deleteBtn);
horizontalLayout.addView(nameAndNumView);
nameAndNumbersLayout.addView(horizontalLayout);
}
}
What should I write so that the button size changes?
You should apply LayoutParams of the LinearLayout which contains your Button.
deleteBtn.setLayoutParams(new LinearLayout.LayoutParams(5, 5));
Try this one
deleteBtn.setLayoutParams (new LayoutParams(LayoutParams.MATCH_PARENT, 15));
Try the following:
int pixels = Math.round(convertDpToPixel(50, getApplicationContext()));
deleteBtn.setLayoutParams(new LinearLayout.LayoutParams(pixels, pixels));
public static float convertDpToPixel(float dp, Context context){
Resources resources = context.getResources();
DisplayMetrics metrics = resources.getDisplayMetrics();
float px = dp * ((float)metrics.densityDpi / DisplayMetrics.DENSITY_DEFAULT);
return px;
}
You can set width and height using LayoutParams, generally when i manage with dimensions i use as reference screen's dimension.
Often i do something like this:
Display display = getWindowManager().getDefaultDisplay();
Point size = new Point();
display.getSize(size);
int width = size.x;
int height = size.y;
float targetWidth = width / 3;
float targetHeight = targetWidth * 3;
deleteBtn.setLayoutParams(new LinearLayout.LayoutParams(targetWidth, targetHeight);
If you just want to change the height and keep the width as it is,
// This sets the height to 5 *pixels*, with keeping the width as it is.
deleteBtn.setLayoutParams (new LayoutParams(deleteBtn.getLayoutParams().getWidth(), 5));
and to change only width,
deleteBtn.setLayoutParams (new LayoutParams(5, deleteBtn.getLayoutParams().getHeight()));
Search for answer to a button [del] to be displayed in a Tablerow [tbrow], resulted only in setting the parameters for the Tablerow where the button appears.
del = new Button(getApplicationContext());
del.setText("DELETE");
del.setTextColor(Color.BLACK);
del.setGravity(Gravity.END);
del.setBackgroundColor(Color.parseColor("#FFFFC107"));
del.setLayoutParams (new TableRow.LayoutParams(80, 50));
tbrow.addView(del);
I am noob in android. My problem about useable height of 18:9 devices.
When I try to get useable screen in these aspect-ratio my application is woking fine all android devices but when ı compile in Samsung Galaxy s8 it is not working.
I am trying to get useable screen of devices.
I have already tried method which in these links
https://stackoverflow.com/questions/43628047/how-to-support-189-aspect-ratio-in-android-apps
https://android-developers.googleblog.com/2017/03/update-your-app-to-take-advantage-of.html
And I use dynamically
DisplayMetrics metrics = this.getResources().getDisplayMetrics();
width = metrics.widthPixels;
height = metrics.heightPixels ;
And I tried
private int getSoftButtonsBarHeight() {
// getRealMetrics is only available with API 17 and +
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR1) {
DisplayMetrics metrics = new DisplayMetrics();
getWindowManager().getDefaultDisplay().getMetrics(metrics);
int usableHeight = metrics.heightPixels;
getWindowManager().getDefaultDisplay().getRealMetrics(metrics);
int realHeight = metrics.heightPixels;
if (realHeight > usableHeight)
return realHeight - usableHeight;
else
return 0;
}
return 0;
}
And when I try to set params MATCH_PARENT height it is working good. But I need to find useable height pixel to desing my other views proportionally .
Actually these code DisplayMetrics metrics = this.getResources().getDisplayMetrics();
height = metrics.heightPixels ; working in my Activity but when I try to use it in another window which I extend from FramaLayout and add to activity it is not working.
Here is my code block
public class StudentLoginActivity extends Activity { ...
FrameLayout.LayoutParams containerParams = new ScrollView.LayoutParams(width, height-sb);
container = new FrameLayout(this);
container.setLayoutParams(containerParams);
container.setBackgroundColor(Color.rgb(248,248,248));
loginStudentView = new StudentLoginView(this);
container.addView(loginStudentView); ...
}
public class StudentLoginView extends FrameLayout { ...
FrameLayout.LayoutParams cp = new FrameLayout.LayoutParams(width, height);
setLayoutParams(cp); ...
}
But this problem related with android navigationBar height because when I show navigation bar there is no problem but if I hide navigationBar it is not resize application still working that there is a navigation bar on screen (but I hide the navigationBar).
My problem is very similar this link
android Navigation Bar hiding and persantage of usable screen overlap
You can get the useable height (even on Galaxy S8 with or without shown NavBar) with the decorview:
//Get the correct screen size even if the device has a hideable navigation bar (e.g. the Samsung Galaxy S8)
View decorView = getWindow().getDecorView(); //if you use this in a fragment, use getActivity before getWindow()
Rect r = new Rect();
decorView.getWindowVisibleDisplayFrame(r);
int screenHeight = r.bottom; // =2220 on S8 with hidden NavBar and =2076 with enabled NavBar
int screenWidth = r.right; // =1080 on S8
If you have a view that is set to match the parent width and height (the whole screen), you can attach a listener to that view and then get its width and height.
View myView = findViewById(R.id.my_view);
myView.addOnLayoutChangeListener(new OnLayoutChangeListener() {
#Override
public void onLayoutChange(View v, int left, int top, int right, int bottom, int oldLeft, int oldTop, int oldRight,
int oldBottom) {
// its possible that the layout is not complete in which case
// we will get all zero values for the positions, so ignore the event
if (left == 0 && top == 0 && right == 0 && bottom == 0) {
return;
}
// Do what you need to do with the height/width since they are now set
}
});
This answer was taken from here.
I am trying to set the layout width programatically .
ViewTreeObserver vtoRecyclerView = mMainLayout.getViewTreeObserver();
vtoRecyclerView.addOnGlobalLayoutListener(new ViewTreeObserver.OnGlobalLayoutListener() {
#Override
public void onGlobalLayout() {
mMainLayout.getViewTreeObserver().removeGlobalOnLayoutListener(this);
ViewGroup.LayoutParams lpView = mMainLayout.getLayoutParams();
lpView.width = ViewGroup.LayoutParams.MATCH_PARENT-20;
mMainLayout.requestLayout();
}
});
but mMainLayout.getLayoutParams() is returning width as -1 .so when I set width as match_parent - 20 it becomes -21. I want to set the width as match_parent - 20.
What is wrong with the approach.
The root problem with your code here, is because you set the width with:
lpView.width = ViewGroup.LayoutParams.MATCH_PARENT-20;
while ViewGroup.LayoutParams.MATCH_PARENT is a constant.
You can find the constant on ViewGroup class
public static final int MATCH_PARENT = -1;
So that is obvious, because -1 - 20 is -21
What you can do here is, you can change the line to
lpView.width = mMainLayout.getWidth()-20;
try this.
DisplayMetrics displaymetrics = new DisplayMetrics();
getWindowManager().getDefaultDisplay().getMetrics(displaymetrics);
int height = displaymetrics.heightPixels;
int width = displaymetrics.widthPixels;
ViewTreeObserver vtoRecyclerView = mMainLayout.getViewTreeObserver();
vtoRecyclerView.addOnGlobalLayoutListener(new ViewTreeObserver.OnGlobalLayoutListener() {
#Override
public void onGlobalLayout() {
mMainLayout.getViewTreeObserver().removeGlobalOnLayoutListener(this);
ViewGroup.LayoutParams lpView = mMainLayout.getLayoutParams();
lpView.width = width -20;
mMainLayout.requestLayout();
}
});
Try this.
ViewTreeObserver vtoRecyclerView = mMainLayout.getViewTreeObserver();
vtoRecyclerView.addOnGlobalLayoutListener(new ViewTreeObserver.OnGlobalLayoutListener() {
#Override
public void onGlobalLayout() {
if(mMainLayout.getWidth > 10 && mMainLayout.getHeight() > 10) // you can modify this value.
{
mMainLayout.getViewTreeObserver().removeGlobalOnLayoutListener(this);
ViewGroup.LayoutParams lpView = mMainLayout.getLayoutParams();
lpView.width = ViewGroup.LayoutParams.MATCH_PARENT-20; // This seems to be wrong;
ViewParent parent = mMainLayout.getParent();
if(parent != null) {
lpView.width = (View)parent.getWidth();
}
mMainLayout.requestLayout();
}
}
});
I had the same problem while setting width as match_parent, I had resolved this by getting the phone screen width as follows:
Display display = ((Activity) context).getWindowManager().getDefaultDisplay();
Point size = new Point();
display.getSize(size);
int width = size.x;
int ActualWidth=width-(`margin you set for view`);
Hope it will help :)
As ViewGroup.LayoutParams.MATCH_PARENT constant predefined numeric value is -1 so you are getting -21 as result. and what you want can be achieved by defining margin to a layout rather than using that approach.
I am using onTouchEvent to detect screen swipe and change ImageView position, my problem is the ImageView can get out of screen. here is my code:
To get RelativeLayout bounds
rlt = (RelativeLayout) findViewById(R.id.layout);
rlt.getViewTreeObserver().addOnGlobalLayoutListener(new ViewTreeObserver.OnGlobalLayoutListener() {
#Override
public void onGlobalLayout() {
rlt.getViewTreeObserver().removeOnGlobalLayoutListener(this);
lwidth = rlt.getWidth();
lheight = rlt.getHeight();
Toast.makeText(MainActivity.this,"" + lwidth + lheight, Toast.LENGTH_SHORT).
show();
}
});
Or other way - to get Screen bounds -
DisplayMetrics displaymetrics = new DisplayMetrics();
getWindowManager().getDefaultDisplay().getMetrics(displaymetrics);
lheight = displaymetrics.heightPixels;
lwidth = displaymetrics.widthPixels;
to set the position of the ImageView (example of right swipe)
if (x2 > x1) { // To the right (x1=swipe ends finger position, x2= swipe starts finger position)
imageView.setX(imageView.getX() + 50);
if(imageView.getX()>1440)
imageView.setX(1440-imageView.getWidth());
Toast.makeText(this, "right" + imageView.getX(), Toast.LENGTH_SHORT).
show();
}
I am testing this on Galaxy S6, width should be 1440 pixels, I checked and the ImageView(40px40p) can get to 1333p max and there you see only half of it. I want it to stop at 1283p in this case but also support other phones, universally code. Thank you.
Note - when the ImageView is imageView.setX(1330) I can't see it at all but my device is 1440 width.
Just get width/height of viewgroup where your view placed and work with them.
I want to adjust app font size to device size. I have values, values-hdpi, values-ldpi.. folders and added there dimens.xml file and set dimens like this <dimen name="task_check_box_font">16sp</dimen>.
But then I get
font size to large to fit in cache error.
How to solve it? Thanks
Try this!
Create ScreenWidth.java
public class ScreenWidth {
public ScreenWidth(){}
#SuppressLint("NewApi")
public int getScreenWidth(Context context) {
int columnWidth ;
WindowManager wm = (WindowManager) context
.getSystemService(Context.WINDOW_SERVICE);
Display display = wm.getDefaultDisplay();
final Point point = new Point();
try {
display.getSize(point);
} catch (java.lang.NoSuchMethodError ignore) { // Older device
point.x = display.getWidth();
point.y = display.getHeight();
}
columnWidth = point.x;
return columnWidth;
}
}
now create object of above class to get screen size pragmatically.
ScreenWidth SW = new ScreenWidth();
int width_sc =SW.getScreenWidth(this);
TextView t1 = (TextView)findViewById(R.id.t1);
t1.setTextSize(((width_sc*22)/768));
Hope this may help you!