I'm looking to create a dialog which allows me to interface the existing action bar from the parent activity. i.e I have a menu button so if the dialog is open I can still open the menu.
Here is how I create the window:
#Override
public void onCreate(Bundle savedInstanceState) {
this.requestWindowFeature(Window.FEATURE_ACTION_BAR);
this.getWindow().setFlags(WindowManager.LayoutParams.FLAG_LAYOUT_IN_SCREEN, WindowManager.LayoutParams.FLAG_LAYOUT_IN_SCREEN);
WindowManager.LayoutParams params = this.getWindow().getAttributes();
params.alpha = 1.0f;
params.dimAmount = 0.5f;
this.getWindow().setAttributes((android.view.WindowManager.LayoutParams) params);
// This sets the window size, while working around the IllegalStateException thrown by ActionBarView
this.getWindow().setLayout(WindowManager.LayoutParams.MATCH_PARENT, WindowManager.LayoutParams.MATCH_PARENT);
this.getWindow().getAttributes().gravity = Gravity.BOTTOM;
super.onCreate(savedInstanceState);
init(CompareViewActivity.this);
setContentView(currentView);
}
Related
I'm creating an app which should draw fullscreen overlay. Something like lockscreen. The user set some timer and when time is come this overlay should appear.
But overlay doesn't cover system navigation bar. It's a problem when navigation bar is semi-transparent. User can touch system buttons and can see some changeable background behind them. Thus user can see something behind the lock screen. It's a problem.
How could I prevent this situation?
Notice that lock screen overlay is not the activity. User sets timer and can browse his device freely. When the time comes the app draws some view over the screen, like this:
View overlayView = new OverlayView(this);
windowManager.addView(overlayView, OverlayView.createLayoutParams(retrieveScreenHeight()));
where
public OverlayView(Context context) {
super(context);
inflate(context, R.layout.overlay_view, this);
}
static WindowManager.LayoutParams createLayoutParams(int height) {
final WindowManager.LayoutParams params =
new WindowManager.LayoutParams(MATCH_PARENT, height, TYPE_SYSTEM_ERROR,
FLAG_NOT_FOCUSABLE
| FLAG_LAYOUT_IN_SCREEN
| FLAG_LAYOUT_NO_LIMITS
| FLAG_NOT_TOUCH_MODAL
| FLAG_LAYOUT_INSET_DECOR
| WindowManager.LayoutParams.FLAG_TRANSLUCENT_NAVIGATION
, TRANSLUCENT);
params.gravity = Gravity.TOP;
return params;
}
public int retrieveScreenHeight() {
int result = 0;
WindowManager wm = (WindowManager)getSystemService(Context.WINDOW_SERVICE);
Point outSize = new Point();
wm.getDefaultDisplay().getSize(outSize);
if(outSize.y > outSize.x){
result = outSize.y;
}else{
result = outSize.x;
}
return result;
}
I assume you'll want to make the activity that hosts the overlay view as fullscreen if you want to cover the system bar.
Something like below code.
public class ActivityName extends Activity {
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
// remove title
requestWindowFeature(Window.FEATURE_NO_TITLE);
getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,
WindowManager.LayoutParams.FLAG_FULLSCREEN);
setContentView(R.layout.main);
}
}
Then your activity will not show the system bar, and you'll have your view going all the way to the top of the screen.
EDIT : From your last comment, here's how I'd do it :
Step 1 : Create this FullScreenLockActivity :
public class FullScreenLockActivity extends Activity {
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
// remove title
requestWindowFeature(Window.FEATURE_NO_TITLE);
// set to fullScreen
getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,
WindowManager.LayoutParams.FLAG_FULLSCREEN);
//Load your black semi-transparent view
setContentView(R.layout.lock_screen);
}
//Override this to prevent the user to close this activity by pressing the back button
#Override
public void onBackPressed() {}
}
Step 2 : Implement your "unlock screen" behavior in the FullScreenLockActivity
Step 3 : To display the lock screen, call
Intent i = new Intent(yourCurrentActivity.this, FullScreenLockActivity.class);
startActivity(i);
I am trying to overlap system bottom navigation bar using window manager but i can`t do it. I am Using bellow code.I have set gravity to bottom, therefore it show view layer in bottom of my activity view not not overlapping bottom navigation bar.
public void onCreate(Bundle savedInstancestate)
{
super.onCreate(savedInstancestate);
this.requestWindowFeature(Window.FEATURE_NO_TITLE);7
manager = ((WindowManager) getApplicationContext().getSystemService(Context.WINDOW_SERVICE));
localLayoutParams = new WindowManager.LayoutParams();
localLayoutParams.type = WindowManager.LayoutParams.TYPE_SYSTEM_OVERLAY;
localLayoutParams.gravity = Gravity.BOTTOM;
localLayoutParams.flags = WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE|
// this is to enable the notification to recieve touch events
//WindowManager.LayoutParams.SOFT_INPUT_STATE_HIDDEN |
//WindowManager.LayoutParams.FLAG_WATCH_OUTSIDE_TOUCH |
// Draws over navigation bar
WindowManager.LayoutParams.FLAG_LAYOUT_IN_SCREEN;
//localLayoutParams.width = WindowManager.LayoutParams.MATCH_PARENT;
localLayoutParams.height = (int) (50 * getResources().getDisplayMetrics().scaledDensity);
localLayoutParams.format = PixelFormat.TRANSPARENT;
view = new customView(this);
manager.addView(view, localLayoutParams);
setContentView(R.layout.Imges);
}
public class customView extends ViewGroup {
public customView(Context context) {
super(context);
}
#Override
protected void onLayout(boolean changed, int l, int t, int r, int b) {
}
#Override
public boolean onInterceptTouchEvent(MotionEvent ev) {
Log.v("customView", "------Intercepted-------");
return true;
}
}
Using this code i can't overlap navigation,Its shows new custom view in bottom of my activity view but can not overlap navigation bar with custom view.
any one can help me on this, to overlap navigation bar with custom view.?
There are actually some solutions.You cannot overlap in the means of making it totally disappear since there are devices in market without the hardware buttons. However you can elegantly arrange your layout accordingly.
For example,
Add this to your styles.xml (v21 )in a values dir:
<item name="android:windowDrawsSystemBarBackgrounds">false</item>
or if it does not work,
boolean hasMenuKey = ViewConfiguration.get(getContext()).hasPermanentMenuKey();
boolean hasBackKey = KeyCharacterMap.deviceHasKey(KeyEvent.KEYCODE_BACK);
if(!hasMenuKey && !hasBackKey) {
// Do whatever you need to do, this device has a navigation bar
FrameLayout.LayoutParams params = new FrameLayout.LayoutParams(
FrameLayout.LayoutParams.MATCH_PARENT,
FrameLayout.LayoutParams.MATCH_PARENT
);
params.setMargins(0, 0, 0, 75);
entrancelayout.setLayoutParams(params);
entrancelayout.requestLayout();
}
I had a FrameLayout, you can use it for whatever layout you have. SetMargins adds margin to buttom in example. It assumes System Bar is there if there are no hardware back and menu buttons.
I'm trying to set the screen brightness from my app, but as soon the screen rotates (Auto-Rotate) my brightness is reset to the systems default brightness.
The code I'm using is following:
final WindowManager.LayoutParams lp = ((Activity) context).getWindow().getAttributes();
lp.screenBrightness = 0.5f;
((Activity) context).getWindow().setAttributes(lp);
((Activity) context).startActivity(new Intent(context, DummyActivity.class));
This is happening because your activity is restarting.
You can try adding your window settings code in onCreate of your activity.
Make sure that this code is added before setting the view of the activity.
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
final WindowManager.LayoutParams lp = getWindow().getAttributes();
lp.screenBrightness = 0.5f;
getWindow().setAttributes(lp);
setContentView(R.layout.your_layout_id);
}
Good day, apologies if this seems to be a duplicate of a question that's been asked before.
I have and Android App and I am displaying a Dialog Fragment. The problem I have is that the width of the Dialog Fragment is ignored when the base activity is showing it. Here's the code in my onCreateDialog function:
#Override
public Dialog onCreateDialog(Bundle savedInstanceState) {
final Dialog dialog = new Dialog(getActivity());
dialog.getWindow().requestFeature(Window.FEATURE_NO_TITLE);
dialog.getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,
WindowManager.LayoutParams.FLAG_FULLSCREEN);
LayoutInflater layoutInflater = (LayoutInflater) getActivity()
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
View layout2 = layoutInflater.inflate(R.layout.fragment_item_dialog, null);
dialog.setContentView(layout2);
setStyle(DialogFragment.STYLE_NORMAL, R.style.MyDialog);
Window window = dialog.getWindow();
window.setFlags(WindowManager.LayoutParams.FLAG_NOT_TOUCH_MODAL,
WindowManager.LayoutParams.FLAG_NOT_TOUCH_MODAL);
window.clearFlags(WindowManager.LayoutParams.FLAG_DIM_BEHIND);
window.setGravity(Gravity.TOP|Gravity.LEFT);
WindowManager.LayoutParams params = window.getAttributes();
params.x = 20;
params.y = 470;
params.width = WindowManager.LayoutParams.WRAP_CONTENT;
params.height = WindowManager.LayoutParams.WRAP_CONTENT;
params.copyFrom(window.getAttributes());
window.setAttributes(params);
// -- more code here
}
and here is my xml file fragment_item_dialog
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="400dp"
android:layout_height="wrap_content" >
<!--- code here ---!>
</RelativeLayout>
The height is followed properly, but Android keeps on setting the width to match parent even though I told it to wrap content. The components inside my dialog Fragment does not exceed 400dp and I have no clue why Android is forcing my layout to match parent.
Does anyone know how to work around this? Any help is very much appreciated. Thanks.
Made it work, use the same code on onStart()
#Override
public void onResume() {
// TODO Auto-generated method stub
super.onResume();
if (getDialog() == null)
return;
int width = 1100;
int height = getResources().getDisplayMetrics().heightPixels;
getDialog().getWindow().setLayout(width,
WindowManager.LayoutParams.WRAP_CONTENT);
}
Does anyone have an idea how to implement an Brightness Screen Filter like the one here:
http://www.appbrain.com/app/screen-filter/com.haxor
I need a starting point and I can't figure out how to do it.
Just make a transparent full screen activity that lets touches pass through. To make touches pass through use the following Window flags before setting the contentView:
#Override
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
Window window = getWindow();
// Let touches go through to apps/activities underneath.
window.addFlags(FLAG_NOT_TOUCHABLE);
// Now set up content view
setContentView(R.layout.main);
}
For your main.xml layout file just use a full screen LinearLayout with a transparent background:
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/background"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:background="#33000000">
</LinearLayout>
Then to adjust the "brightness" just change the value of the background colour from your code somewhere:
findViewById(R.id.background).setBackgroundColor(0x66000000);
Get an instance of WindowManager.
WindowManager windowManager = (WindowManager) Class.forName("android.view.WindowManagerImpl").getMethod("getDefault", new Class[0]).invoke(null, new Object[0]);
Create a full screen layout xml(layout parameters set to fill_parent)
Set your view as not clickable, not focusable, not long clickable, etc so that touch is passed through to your app and the app can detect it.
view.setFocusable(false);
view.setClickable(false);
view.setKeepScreenOn(false);
view.setLongClickable(false);
view.setFocusableInTouchMode(false);
Create a layout parameter of type android.view.WindowManager.LayoutParams.
LayoutParams layoutParams = new LayoutParams();
Set layout parameter like height, width etc
layoutParams.height = LayoutParams.FILL_PARENT;
layoutParams.width = LayoutParams.FILL_PARENT;
layoutParams.flags = 280; // You can try LayoutParams.FLAG_FULLSCREEN too
layoutParams.format = PixelFormat.TRANSLUCENT; // You can try different formats
layoutParams.windowAnimations = android.R.style.Animation_Toast; // You can use only animations that the system to can access
layoutParams.type = LayoutParams.TYPE_SYSTEM_OVERLAY;
layoutParams.gravity = Gravity.BOTTOM;
layoutParams.x = 0;
layoutParams.y = 0;
layoutParams.verticalWeight = 1.0F;
layoutParams.horizontalWeight = 1.0F;
layoutParams.verticalMargin = 0.0F;
layoutParams.horizontalMargin = 0.0F;
Key step: You can set what percentage of brightness you need.
layoutParams.setBackgroundDrawable(getBackgroundDrawable(i));
private Drawable getBackgroundDrawable(int i) {
int j = 255 - (int) Math.round(255D * Math.exp(4D * ((double) i / 100D) - 4D));
return new ColorDrawable(Color.argb(j, 0, 0, 0));}
Finally add view to windowManager that you created earlier.
windowManager.addView(view, layoutParams);
Note: You need SYSTEM_ALERT_WINDOW permission to lay an overlay on the screen.
<uses-permission android:name="android.permission.SYSTEM_ALERT_WINDOW"/>
Have tested this and it works. Let me know if you get stuck.
Of course you can't use this is production code, but if you are playing around .. try this Undocumented hack
It uses :
private void setBrightness(int brightness) {
try {
IHardwareService hardware = IHardwareService.Stub.asInterface(
ServiceManager.getService("hardware"));
if (hardware != null) {
hardware.setScreenBacklight(brightness);
}
} catch (RemoteException doe) {
}
}
Remember that it uses this permission :
<uses-permission android:name="android.permission.HARDWARE_TEST"/>
You ca try this also:
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.max_bright);
WindowManager.LayoutParams lp = getWindow().getAttributes();
lp.screenBrightness = 100 / 100.0f;
getWindow().setAttributes(lp);
}