I'm developing an Android app that needs to support 2.3+. I'm using HoloEverywhere as a layout library. My app runs perfectly on smartphones and tablets, but for now I'm using the same layout for all devices, so, in tablets there is a lot of blank space in a lot of layouts. So, I thinking if is possible to show this layout as a popup (AlertDialog) just on large screens.
I searched the internet for a response but every response I look isn't applying to my case. I don't want to change my layouts files (and, of course, I don't want to create new layout files).
Can anyone give a direction to solve my problem, or the unique way is to create new layouts for large screens?
You can use your own layout file as the content view of a dialog. With a custom view you can create other/bigger dialogs for your tablets. It is also possible to create a dialog from an activity. See http://developer.android.com/guide/topics/ui/dialogs.html#ActivityAsDialog or http://developer.android.com/guide/topics/ui/dialogs.html#FullscreenDialog
You can change the theme of activity to dialog in Manifest file. See:
<activity
android:name="Activity"
android:label="Home"
android:theme="#android:style/Theme.Holo.Dialog">
</activity>
You can use this code to change the height and width of my activity in onCreate()..It provides better flexibility than specifying dialog theme
Display display = getWindowManager().getDefaultDisplay();
Point size = new Point();
display.getSize(size);
int width = size.x;
int height = size.y;
requestWindowFeature(Window.FEATURE_ACTION_BAR);
getWindow().setFlags(WindowManager.LayoutParams.FLAG_DIM_BEHIND,
WindowManager.LayoutParams.FLAG_DIM_BEHIND);
android.view.WindowManager.LayoutParams params =
getWindow().getAttributes();
params.type = WindowManager.LayoutParams.TYPE_SYSTEM_DIALOG;
params.height = LayoutParams.WRAP_CONTENT;
params.width = (int) (width / 1.2); // fixed width
params.alpha = 1.0f;
params.dimAmount = 0.5f;
getWindow().setAttributes((android.view.WindowManager.LayoutParams)
params);
Related
Any way to use NativeExpressAdView from admob without using a layout file (xml).
I use only java file to create views and am wondering on how to create a view from java file for NativeExpressAdView ?
Edit:
I tried this
NativeExpressAdView adView = new NativeExpressAdView(activity);
AdSize adSize = new AdSize(280, 80);
adView.setAdSize(adSize);
adView.setAdUnitId(getString(R.string.ad_unit_id));
LinearLayout.LayoutParams layoutParams = new LinearLayout.LayoutParams(LinearLayout.LayoutParams.MATCH_PARENT, adSize.getHeightInPixels(activity));
adView.setLayoutParams(layoutParams);
AdRequest request = new AdRequest.Builder().build();
adView.loadAd(request);
linear_layout.addView(adView);
this code give me a black empty view width:280dp, height: 80dp
Something like this should work.... First "reserve" an id for the view by creating a file /res/values/ids.xml:
<?xml version="1.0" encoding="utf-8"?>
<resources>
<item name="nativeExpressAdId" type="id"/>
</resources>
On API versions of Android > 17 you can generate the ID on the fly, but then you lose backward compatibility.
Next add an entry to '/res/values/strings.xml`:
<string name="adUnitId">ca-app-pub-12345678901234567890etc</string>
Then in code:
NativeExpressAdView adView = new NativeExpressAdView(this);
adView.setId(R.id.nativeExpressAdId);
int height = 80; // or whatever is appropriate - make sure its >= ad minimum
// set the size to the width of the screen
adView.setAdSize(new AdSize((int) (AdSize.FULL_WIDTH, height));
adView.setAdUnitId(getString(R.string.adUnitId));
// assuming this goes in a linearlayout... you can also addRules to lp
LinearLayout.LayoutParams lp = new
LinearLayout.LayoutParams(LinearLayout.LayoutParams.MATCH_PARENT,
LinearLayout.LayoutParams.MATCH_PARENT);
// set margins manually (`.setMargins()`) or add rules with (`.addRule()`)
// or .setVisibility() etc... to lp
adView.setLayoutParams(lp);
Then use parent.addView(adView) to insert this to the parent container. This isn't exactly the code I've used (I was using a RelativeLayout), but it's pretty close, so should get you started.
This sort of code is kind of useful if you need to generate a new ad when rotating, since you can't resize an existing one. You can "borrow" the previous ID, visibility, layout, etc. from the previous one and just apply it to the new one. See here for a similar example.
Tip: Make sure to stop any running animations before removing a nativeexpressadview as this may cause crashes in older webviews like those found in kitkat.
This is pretty much simlar to other but the width and height matters also you need a AdRequest
NativeExpressAdView mNativeExpressAdView = new NativeExpressAdView(this;
mNativeExpressAdView.setLayoutParams(new NativeExpressAdView.LayoutParams(ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT));
mNativeExpressAdView.setAdSize(new AdSize(AdSize.FULL_WIDTH, 132)); // here 132 is the medium size
mNativeExpressAdView.setAdUnitId("YOUR AD_UNIT ID");
AdRequest.Builder adRequestBuilder = new AdRequest.Builder();
//adRequestBuilder.addTestDevice("28776EC697A5120CBA87CB573E26544A"); //if needed
<parent view>.adcontainer.addView(mNativeExpressAdView);
mNativeExpressAdView.loadAd(adRequestBuilder.build());
i need to know how to setup background randomly on one activity,
'android:background="#drawable/backG"' only show one image
the background come randomly with the launch of the application, and it keep on showing until the user quit the app, and when he reopen it, it will show a new background
note : i have only one activity in my project
thanks in advance
I think, you should use Java code to make this.
For example, you have RelativeLayout is the main layout in your activity
You should use
RelativeLayout rLayout = (RelativeLayout) findViewById (R.id.rLayout);
Resources res = getResources(); //resource handle
Drawable drawable = res.getDrawable(R.drawable.newImage); //new Image that was added to the res folder
rLayout.setBackground(drawable);
For random background: you create an array that contains all you images background
and use the code below for random position
Random randomGenerator = new Random();
int randomPositionInt = randomGenerator.nextInt(10); // it will generate position in 0 - 10
Hope this help
When I create an android app this is generated automatically:
How do I get rid of this? Its ugly
EDIT
WindowManager wm = (WindowManager) context.getSystemService(Context.WINDOW_SERVICE);
Display display = wm.getDefaultDisplay();
Point size = new Point();
display.getSize(size);
screenWidth = size.x;
screenHeight = size.y;
you can try this :
requestWindowFeature(Window.FEATURE_NO_TITLE);
Note that this has to be called before setContentView(XYZ_xml)
There are other Window Features too, like no action bar and no title etc.
See the javadoc for more help
you can also add this to work with xml like this :
android:theme="#android:style/Theme.NoTitleBar
Try adding this to the <application> tag your manifest:
android:theme="#android:style/Theme.NoTitleBar"
In your activity, use before setContentView():
requestWindowFeature(Window.FEATURE_NO_TITLE);
try applying the theme to your activity in your manifest. You might have to change the theme depending on your support library:
android:theme="#android:style/Theme.NoTitleBar
Add Theme to you manifest like others have said. Avoid putting code in your java activity file instead because if you do that, when you run your application you will see the action bar for a very short duration (enough to notice it) before it goes away.
I want to resize my images (original size is 1080p) but they don't resize properly and I don't know why. The Images just don't have the right size sometimes. On my emulator and my old 800*480 smartphone it works fine but on my nexus 4 with 1280*768 things don't look right. There is no problem reading the right screen resolution. There is just a bug with my resize procedure. Please help me. Heres a Snippet:
private Bitmap bitmap,bitmap1;
private float factor;
WindowManager wm = (WindowManager) context.getSystemService(Context.WINDOW_SERVICE);
DisplayMetrics displaymetrics = new DisplayMetrics();
wm.getDefaultDisplay().getMetrics(displaymetrics);
width = displaymetrics.widthPixels;
height = displaymetrics.heightPixels;
factor = (float)height/1080;
Int bitmapheight,bitmapwidth;
bitmap = Bitmap.createScaledBitmap(BitmapFactory.decodeResource(getResources(), R.drawable.picture),(int)(factor*BitmapFactory.decodeResource(getResources(), R.drawable.picture).getwidth() ,(int)(factor*BitmapFactory.decodeResource(getResources(), R.drawable.picture).getHeight(), true);
canvas.drawBitmap(bitmap,.....
In the end the height is not resized to 768/1080*bitmapheight on my nexus and i don't know why. Note everything else works. Mathmatics indicates that the height should be the same on every phone.
These are screenshots of my programm showing the images have not the same height
First image:
Second:
As you can see the Images are not equal in terms of height. On my emulator and my old smartphone they look right. The Images should not touch the bottom but on my nexus 4 they do touch the bottom.
For anyone who is interessted why it didnt work. Finally i found out.
Now
BitmapFactory.decodeResource(getResources(), R.drawable.picture)
not only loads the pictures but also scales it depending on your resolution ( not always just on some resolution) thats why it confused me. I thought it just loads the damn picture. Now how to solve this:
BitmapFactory.Options opts = new BitmapFactory.Options();
opts.inScaled = false;
BitmapFactory.decodeResource(getResources(), R.drawable.picture,opts)
I want to make an activity that can be opened above ANY app.
Normally, even when the activity is set as dialog, when you switch to my app, you see my app, and in the background you see the launcher:
BUT, I want the app will go above any app like this: (made in photoshop):
I did see this question Creating a system overlay window (always on top), but in ICS there is no functionallity to the layout.
Furthermore, I want to give a dialog box from my app without minimizing the other app...
there are plenty of apps that show a floating view on top of everything like : airbrowser , LilyPad , Stick it , AirTerm , Smart Taskbar , aircalc ...
anyway , in order to achieve this feature , you must have a special permission called "android.permission.SYSTEM_ALERT_WINDOW" , and use something like that:
final WindowManager.LayoutParams param=new WindowManager.LayoutParams();
param.flags=WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE;
final View view=findViewById(R.id.my_floating_view);
final ViewGroup parent=(ViewGroup)view.getParent();
if(parent!=null)
parent.removeView(view);
param.format=PixelFormat.RGBA_8888;
param.type=WindowManager.LayoutParams.TYPE_SYSTEM_ALERT;
param.gravity=Gravity.TOP|Gravity.LEFT;
param.width=parent!=null?LayoutParams.WRAP_CONTENT:view.getLayoutParams().width;
param.height=parent!=null?LayoutParams.WRAP_CONTENT:view.getLayoutParams().height;
final WindowManager wmgr=(WindowManager)getApplicationContext().getSystemService(Context.WINDOW_SERVICE);
wmgr.addView(view,param);
// TODO handle overlapping title bar and/or action bar
// TODO you must add logic to remove the view
// TODO you must use a special permission to use this method :android.permission.SYSTEM_ALERT_WINDOW
// TODO if you wish to let the view stay when leaving the app, make sure you have a foreground service running.
I'm one of the developers of the Tooleap SDK, and we also dealt with this issue.
Basically, you don't need to use the SYSTEM_ALERT_WINDOW to display an activity on top of another one. You can just display a regular "shrinked" Activity with a transparent background.
To make a "shrinked Activity, change the activity window layout params of height and width:
WindowManager.LayoutParams params = getWindow().getAttributes();
params.x = ...;
params.y = ...;
params.width = ...;
params.height = ...;
this.getWindow().setAttributes(params);
To make a transparent background add to your activity definition in the manifest file:
android:theme="#android:style/Theme.Translucent"
That way, you can create the illusion of a floating activity:
Note that only the foreground activity will be resumed, while the background one is paused. But for most apps this shouldn't be an issue.
Now all that remains is when to launch the floating activity.
Here is an example of a "floating" calculator app using a regular activity. Note that the activity below the calculator belongs to another app.