Develop Reference

How do i force an embedded android fragment to a fixed width

Set i have a fragment CustomSwitchFragment, that i want to use as followed:
<fragment android:name="m6world.test_toggle_yes_no.CustomSwitchFragment"
android:id="#+id/custom_switch_fragment"
android:layout_width="80dp"
android:layout_height="wrap_content"
android:orientation="horizontal" />
i don't want to have to input 80dp, i would like to be able to put wrap_content and the fragment will be set whatever width i used when created it.
Basically i don`t want to have to tell people who are gonna use my fragment, to set it to 80dp specifically.

I guess you can use something like this
Display display = getWindow().getWindowManager().getDefaultDisplay();
Point size = new Point();
display.getSize(size);
int width = size.x;
int height = size.y;
WindowManager.LayoutParams params = getWindow().getAttributes();
params.width = width * 70 / 100;
params.height = height * 30 / 100;
getWindow().setAttributes(params);
getWindow().getAttributes().verticalMargin = 0.2F;

How to fit an AlertDialog size to the image that contains

I'm trying to create a AlertDialog which will show an image in fullscreen. My problem is that the dialog does not fit the image.
I could scale the image to fit the horizontal or vertical limit (depending on the screen oreintation) with some code that I found. However , the dialog shows an empty space that I want eliminate.
My dialog shows this:
But I want that it fits the image without the left and right empty space, like this:
My code to create the alert dialog:
void showImage(String path, String name) {
// Get image from the aboslute path
BitmapDrawable bitmap = new BitmapDrawable(getActivity().getResources(), path);
// Construct the dialog
AlertDialog.Builder imageDialog = new AlertDialog.Builder(getActivity());
imageDialog.setTitle(name);
imageDialog.setCancelable(true);
LayoutInflater inflater = (LayoutInflater) getActivity().getSystemService(
Context.LAYOUT_INFLATER_SERVICE);
View layout = inflater.inflate(R.layout.thumbnail, null);
ImageView image = (ImageView) layout.findViewById(R.id.imageView);
image.setImageDrawable(bitmap);
imageDialog.setView(layout);
imageAlert = imageDialog.create();
// Fullscreen
WindowManager.LayoutParams lp = new WindowManager.LayoutParams();
WindowManager manager = (WindowManager) getActivity().getSystemService(
Activity.WINDOW_SERVICE);
lp.copyFrom(imageAlert.getWindow().getAttributes());
lp.width = manager.getDefaultDisplay().getWidth();
lp.height = manager.getDefaultDisplay().getHeight();
imageAlert.getWindow().setAttributes(lp);
image.setMinimumWidth(lp.width);
image.setMinimumHeight(lp.height);
imageAlert.show();
}
My XML:
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="wrap_content"
android:layout_height="wrap_content">
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:layout_centerHorizontal="true"
android:id="#+id/imageView"/>
</LinearLayout>
I have tried scaleType = fitXY, but it deforms the image.
How can I make the dialog fit the image keeping the same aspect ratio? Any help would be appreciate
I could find a way to solve my problem, but I dont know if its the best way to do it. I calculated the image size manually and set the image and dialog to this size.
First, I check which dimesion will limit the size of the image, and set the screen value to that dimesion. Then, I calculated the other dimesion in relation to the previous to keep the same ratio and the image is not deformed.
// Get screen size
WindowManager wm = (WindowManager) getActivity().getSystemService(Context.WINDOW_SERVICE);
Display display = wm.getDefaultDisplay();
Point size = new Point();
display.getSize(size);
int screenWidth = size.x;
int screenHeight = size.y;
// Get image size
int imgHeight = bitmap.getBitmap().getHeight();
int imgWidth = bitmap.getBitmap().getWidth();
// Get dialog params
WindowManager.LayoutParams lp = new WindowManager.LayoutParams();
lp.copyFrom(imageAlert.getWindow().getAttributes());
// Which dimension is bigger in relation to screen size
if (((float)imgHeight) / screenHeight > ((float)imgWidth) / screenWidth) {
// Height is bigger so width is calculated on relation to it to keep the same ratio
lp.height = screenHeight;
lp.width = (int) (imgWidth * ((float) screenHeight) / imgHeight);
}
else {
// Width is bigger so height is calculated on relation to it to keep the same ratio
lp.height =(int) (imgHeight * ((float) screenWidth) / imgWidth);
lp.width = screenWidth;
}
// Set the new size
image.getLayoutParams().width = lp.width;
image.getLayoutParams().height = lp.height;
image.requestFocus();
imageAlert.show();
imageAlert.getWindow().setAttributes(lp);

Use
imageDialog.getWindow().setFlags(LayoutParams.FLAG_FULLSCREEN, LayoutParams.FLAG_FULLSCREEN);

Try doing this imageView.setScaleType(ImageView.ScaleType.CENTER_CROP); and also make height and width match_parent as shown below:
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent">
<ImageView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_gravity="center"
android:layout_centerHorizontal="true"
android:id="#+id/imageView"/>
</LinearLayout>

Moto360 addview with black bar on bottom

everyone. I try to attach full screen view to moto360. However, when it works on LG/samsung square devices. It left a black out bar on bottom, which is about same size of original black bar on bottom. Is this a bug or what? anyone ever found this happened?
Here's my code:
DisplayMetrics metrics = getApplicationContext().getResources().getDisplayMetrics();
float width = metrics.widthPixels;
float height = metrics.heightPixels;
Log.d(TAG, "width: " + width + " height:" + height);
// attatch view to windows
WindowManager.LayoutParams wmParams = new WindowManager.LayoutParams();
wmParams.type = LayoutParams.TYPE_SYSTEM_ERROR;
wmParams.format = PixelFormat.RGBA_8888;
wmParams.flags = LayoutParams.FLAG_NOT_TOUCHABLE
| LayoutParams.FLAG_NOT_FOCUSABLE
| LayoutParams.TYPE_SYSTEM_OVERLAY;
wmParams.gravity = Gravity.TOP | Gravity.TOP;
wmParams.x = 0;
wmParams.y = 0;
wmParams.width = metrics.widthPixels;
wmParams.height = metrics.heightPixels;
wManager.addView(view, wmParams);
by the way, change metrics.widthPixels to Match_Parent is not working.
Any clue is appreciated. For now I suspect it is a bug on moto360 rom which consider the screen size as (real space - bottom bar size). So, when the view is attached, is return some black space on bottom.

android check screen resolution

i try to check screen resolution
i googled and i found one example,but i can not check screen resolution.i try check 480X800 and 720X1280 screen resolution
int screenSize = getResources().getConfiguration().screenLayout
& Configuration.SCREENLAYOUT_SIZE_MASK;
switch (screenSize) {
case Configuration.SCREENLAYOUT_SIZE_LARGE:
mapimg.getLayoutParams().height = 400;
break;
case Configuration.SCREENLAYOUT_SIZE_NORMAL:
mapimg.getLayoutParams().height = 200;
break;
case Configuration.SCREENLAYOUT_SIZE_SMALL:
break;
default:
}
Layout
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_above="#+id/relativeLayout1"
android:layout_alignParentLeft="true" >
<ImageView
android:id="#+id/mapimages"
android:layout_width="match_parent"
android:layout_height="wrap_content"
/>
<com.google.android.gms.maps.MapView
android:id="#+id/pointMap"
android:name="com.google.android.gms.maps.MapFragment"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_below="#+id/mapimages"
class="com.google.android.gms.maps.MapFragment" >
</com.google.android.gms.maps.MapView>
</RelativeLayout>
this is a my code
i try to my imageview's height would be different in same screen resolution
in 480X800 height 200 and in 720X1280 400
when i run program in a both screen resolution imageview has 200 height
what am i doing wrong? if anyone knows solution please help me
thanks

After setting parameters like height to a view that has already finished its requestLayout() pass, you need to again request for system to measure it. Do this at the end of switch statement:
mapimg.requestLayout();

you can get the screen size like so:
Display display = getWindowManager().getDefaultDisplay();
Point size = new Point();
display.getSize(size);
int width = size.x;
int height = size.y;
not if you are not doing this from an activity you can also do:
WindowManager wm = (WindowManager) context.getSystemService(Context.WINDOW_SERVICE);
Display display = wm.getDefaultDisplay();

use this code for get screen dp
Display display = getWindowManager().getDefaultDisplay();
DisplayMetrics outMetrics = new DisplayMetrics ();
display.getMetrics(outMetrics);
float density = getResources().getDisplayMetrics().density;
float dpHeight = outMetrics.heightPixels / density;
float dpWidth = outMetrics.widthPixels / density;
and set your image width and height with this line :
LinearLayout.LayoutParams lp = new LinearLayout.LayoutParams(
dpWidth/2,dpHeight/2);
image.setLayoutParams(lp);

Full width Dialog

I what the Dialog to cover up the whole screen width.
Hence:
Dialog dialog = new Dialog(this);
LayoutParams params = dialog.getWindow().getAttributes();
params.height = LayoutParams.MATCH_PARENT;
params.width = LayoutParams.MATCH_PARENT;
dialog.getWindow().setAttributes(params);
But the result is:
Skip is a button in a parent layout (MATCH_PARENT as width and height
and 10dp padding and orange background).
Even in this answer the final result has some gaps on sides.
Is there a way to cover the whole screen width without any gaps?

The solution that worked for me was the following:
Grab the device dimensions using:
WindowManager wm = (WindowManager) context.getSystemService(Context.WINDOW_SERVICE);
Display display = wm.getDefaultDisplay();
Point size = new Point();
display.getSize(size);
Then set the width of the dialog to the screen width
params.width = size.x;