Xamarin.android Relativelayout

First contact with Xamarin.android.

Because the domestic xamarin data is rare, I mostly refer to Java native code, slowly groping over.

I have found out the results of the advertised, I hope Yimeimei can take a little detour, but also hope you can make a contribution.

If you learn relativelayout, that LinearLayout natural extremely easy.

Dynamic add learned, static add still far?

1. Create Relativelayout

New Relativelayout (this. Context);

2. Adding controls

2.1 Base Additions

New TextView (this. Context); Test.addview (testtext);

2.2 Top Add (same as bottom add, etc.)

New Relativelayout (Thisnew TextView. Context);
New Relativelayout.layoutparams (RelativeLayout.LayoutParams.WrapContent, RelativeLayout.LayoutParams.WrapContent); Testtextrp.addrule (Layoutrules.alignparenttop); Test.addview (TESTTEXT,TESTTEXTRP);

Android uses Layoutparams to control the spatial layout of controls.

The common layout of C # is modified by the spatial properties of the control, which is not suitable for Android.

I have to tell you that if you need to make changes to the control layout parameters, be sure to use Layoutparams. Romans do

2.3 Adding after another control

Relativelayout Test =NewRelativelayout ( This. Context); TextView Testtext=NewTextView ( This. Context); Testtext.text="I'm number 1th ."; Relativelayout.layoutparams TESTTEXTRP=NewRelativelayout.layoutparams (RelativeLayout.LayoutParams.WrapContent, RelativeLayout.LayoutParams.WrapContent); Testtextrp.addrule (Layoutrules.alignparenttop); Test.addview (TESTTEXT,TESTTEXTRP); TextView Nexttext=NewTextView ( This. Context); Nexttext.text="I'm number 2nd ."; Relativelayout.layoutparams NEXTTEXTRP=NewRelativelayout.layoutparams (RelativeLayout.LayoutParams.WrapContent, RelativeLayout.LayoutParams.WrapContent);//Watch this .Testtext.id =View.generateviewid (); Nexttextrp.addrule (layoutrules.below,testtext.id); Test.addview (Nexttext, NEXTTEXTRP);

Test Picture:

The key point here is to assign a value to the ID of the previous control. (I'm using a system-generated value.) You can try other values, such as: Wait a minute. )

If you do not assign a value, then the actual effect is two textview will overlap.

After testing, the default ID for each control is-1.

2.4 To Be continued

Originating From: https://www.cnblogs.com/nanyunan/p/9189057.html

Xamarin.android Relativelayout