How to set layout gravity for activity root view
I get the root view (Which in my case happens to be RelativeLayout) using the below code:
final ViewGroup viewGroup = (ViewGroup) ((ViewGroup) this
.findViewById(android.R.id.content)).getChildAt(0);
Source: Get root view from current activity
Now I want to set the size and the layout gravity of the root view. But I don't know the layout type of its parent
The below code works when the view I want to set it's layout params is inside a LinearLayout.
LinearLayout.LayoutParams params = new LinearLayout.LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.FILL_PARENT);
params.weight = 1.0f;
params.gravity = Gravity.TOP;
button.setLayoutParams(params);
Source: How to set layout_gravity programmatically?
android android-layout asked Nov 12 '18 at 20:02
JackJack
153112
add a comment |
I get the root view (Which in my case happens to be RelativeLayout) using the below code:
final ViewGroup viewGroup = (ViewGroup) ((ViewGroup) this
.findViewById(android.R.id.content)).getChildAt(0);
Source: Get root view from current activity
Now I want to set the size and the layout gravity of the root view. But I don't know the layout type of its parent
The below code works when the view I want to set it's layout params is inside a LinearLayout.
LinearLayout.LayoutParams params = new LinearLayout.LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.FILL_PARENT);
params.weight = 1.0f;
params.gravity = Gravity.TOP;
button.setLayoutParams(params);
Source: How to set layout_gravity programmatically?
android android-layout asked Nov 12 '18 at 20:02
JackJack
153112
add a comment |
I get the root view (Which in my case happens to be RelativeLayout) using the below code:
final ViewGroup viewGroup = (ViewGroup) ((ViewGroup) this
.findViewById(android.R.id.content)).getChildAt(0);
Source: Get root view from current activity
Now I want to set the size and the layout gravity of the root view. But I don't know the layout type of its parent
The below code works when the view I want to set it's layout params is inside a LinearLayout.
LinearLayout.LayoutParams params = new LinearLayout.LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.FILL_PARENT);
params.weight = 1.0f;
params.gravity = Gravity.TOP;
button.setLayoutParams(params);
Source: How to set layout_gravity programmatically?
android android-layout asked Nov 12 '18 at 20:02
JackJack
153112
I get the root view (Which in my case happens to be RelativeLayout) using the below code:
final ViewGroup viewGroup = (ViewGroup) ((ViewGroup) this
.findViewById(android.R.id.content)).getChildAt(0);
Source: Get root view from current activity
Now I want to set the size and the layout gravity of the root view. But I don't know the layout type of its parent
The below code works when the view I want to set it's layout params is inside a LinearLayout.
LinearLayout.LayoutParams params = new LinearLayout.LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.FILL_PARENT);
params.weight = 1.0f;
params.gravity = Gravity.TOP;
button.setLayoutParams(params);
Source: How to set layout_gravity programmatically?
android android-layout android android-layout asked Nov 12 '18 at 20:02
JackJack
153112
asked Nov 12 '18 at 20:02
JackJack
153112
asked Nov 12 '18 at 20:02
JackJack
153112
asked Nov 12 '18 at 20:02
JackJack
153112
asked Nov 12 '18 at 20:02
JackJack
153112
153112
add a comment |
add a comment |
1 Answer
1
active
oldest
votes
I believe you need DecorView.LayoutParams.
The root view is added to a DecorView, which is attached to the Activity's Window.
PhoneWindow.java
Since the DecorView in question isn't accessible to apps in general, you can use FrameLayout.LayoutParams.
answered Nov 12 '18 at 20:11
TheWandererTheWanderer
6,70321028
Thank you, it turns out that the parent of the root view is a FrameLayout, as my app crashed and AS says can't cast RelativeLayout (root) to FrameLayout when I use rootview.setLayoutParams(params);
– Jack
Nov 12 '18 at 20:59
Oh right, the DecorView you're using is probably from the ViewPager class, since the internal one is hidden. I guess ViewPager's extends RelativeLayout and not FrameLayout.
– TheWanderer
Nov 12 '18 at 21:01
add a comment |
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1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
I believe you need DecorView.LayoutParams.
The root view is added to a DecorView, which is attached to the Activity's Window.
PhoneWindow.java
Since the DecorView in question isn't accessible to apps in general, you can use FrameLayout.LayoutParams.
answered Nov 12 '18 at 20:11
TheWandererTheWanderer
6,70321028
Thank you, it turns out that the parent of the root view is a FrameLayout, as my app crashed and AS says can't cast RelativeLayout (root) to FrameLayout when I use rootview.setLayoutParams(params);
– Jack
Nov 12 '18 at 20:59
Oh right, the DecorView you're using is probably from the ViewPager class, since the internal one is hidden. I guess ViewPager's extends RelativeLayout and not FrameLayout.
– TheWanderer
Nov 12 '18 at 21:01
add a comment |
I believe you need DecorView.LayoutParams.
The root view is added to a DecorView, which is attached to the Activity's Window.
PhoneWindow.java
Since the DecorView in question isn't accessible to apps in general, you can use FrameLayout.LayoutParams.
answered Nov 12 '18 at 20:11
TheWandererTheWanderer
6,70321028
Thank you, it turns out that the parent of the root view is a FrameLayout, as my app crashed and AS says can't cast RelativeLayout (root) to FrameLayout when I use rootview.setLayoutParams(params);
– Jack
Nov 12 '18 at 20:59
Oh right, the DecorView you're using is probably from the ViewPager class, since the internal one is hidden. I guess ViewPager's extends RelativeLayout and not FrameLayout.
– TheWanderer
Nov 12 '18 at 21:01
add a comment |
I believe you need DecorView.LayoutParams.
The root view is added to a DecorView, which is attached to the Activity's Window.
PhoneWindow.java
Since the DecorView in question isn't accessible to apps in general, you can use FrameLayout.LayoutParams.
answered Nov 12 '18 at 20:11
TheWandererTheWanderer
6,70321028
I believe you need DecorView.LayoutParams.
The root view is added to a DecorView, which is attached to the Activity's Window.
PhoneWindow.java
Since the DecorView in question isn't accessible to apps in general, you can use FrameLayout.LayoutParams.
answered Nov 12 '18 at 20:11
TheWandererTheWanderer
6,70321028
edited Nov 12 '18 at 21:02
answered Nov 12 '18 at 20:11
TheWandererTheWanderer
6,70321028
answered Nov 12 '18 at 20:11
TheWandererTheWanderer
6,70321028
answered Nov 12 '18 at 20:11
TheWandererTheWanderer
6,70321028
6,70321028
Thank you, it turns out that the parent of the root view is a FrameLayout, as my app crashed and AS says can't cast RelativeLayout (root) to FrameLayout when I use rootview.setLayoutParams(params);
– Jack
Nov 12 '18 at 20:59
Oh right, the DecorView you're using is probably from the ViewPager class, since the internal one is hidden. I guess ViewPager's extends RelativeLayout and not FrameLayout.
– TheWanderer
Nov 12 '18 at 21:01
add a comment |
Thank you, it turns out that the parent of the root view is a FrameLayout, as my app crashed and AS says can't cast RelativeLayout (root) to FrameLayout when I use rootview.setLayoutParams(params);
– Jack
Nov 12 '18 at 20:59
Oh right, the DecorView you're using is probably from the ViewPager class, since the internal one is hidden. I guess ViewPager's extends RelativeLayout and not FrameLayout.
– TheWanderer
Nov 12 '18 at 21:01
Thank you, it turns out that the parent of the root view is a FrameLayout, as my app crashed and AS says can't cast RelativeLayout (root) to FrameLayout when I use rootview.setLayoutParams(params);
– Jack
Nov 12 '18 at 20:59
Thank you, it turns out that the parent of the root view is a FrameLayout, as my app crashed and AS says can't cast RelativeLayout (root) to FrameLayout when I use rootview.setLayoutParams(params);
– Jack
Nov 12 '18 at 20:59
Oh right, the DecorView you're using is probably from the ViewPager class, since the internal one is hidden. I guess ViewPager's extends RelativeLayout and not FrameLayout.
– TheWanderer
Nov 12 '18 at 21:01
Oh right, the DecorView you're using is probably from the ViewPager class, since the internal one is hidden. I guess ViewPager's extends RelativeLayout and not FrameLayout.
– TheWanderer
Nov 12 '18 at 21:01
add a comment |
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