Databases
StackOverflow2013
Postsdbo
PO
 

Note that there are some explanatory texts on larger screens.

plurals
  1. PO
    primarykey
    data
    text
    <p>Did I get that right - you just want to have some blue view containing a white view that shows up when the blue view is clicked?</p> <p>Then it would be better not to implement your own <code>ViewGroup</code> but using one of the existing ones like <code>FrameLayout</code>. Set the layout's background to blue. Add a child <code>View</code> with it's background set to white and it's visibility set to <code>View.INVISIBLE</code> or <code>View.GONE</code>.</p> <p>Add a click handler to the <code>ViewGroup</code> that sets the visibility of your white <code>View</code> to <code>View.VISIBLE</code>.</p> <p>You could do it like this:</p> <p>main.xml:</p> <pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt; &lt;FrameLayout xmlns:android="http://schemas.android.com/apk/res/android" android:background="#00f" android:onClick="onBlueClick" android:layout_width="fill_parent" android:layout_height="fill_parent"&gt; &lt;View android:id="@+id/whiteBox" android:background="#fff" android:visibility="gone" android:layout_gravity="center" android:layout_width="20dp" android:layout_height="20dp"/&gt; &lt;/FrameLayout&gt; </code></pre> <p>MyActivity.java:</p> <pre><code>package com.example; import android.app.Activity; import android.os.Bundle; import android.view.View; public class MyActivity extends Activity { private View whiteBox; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); whiteBox = findViewById(R.id.whiteBox); } @SuppressWarnings({"UnusedDeclaration"}) // wired by layout xml public void onBlueClick(final View view) { if (whiteBox != null) { whiteBox.setVisibility(whiteBox.getVisibility() == View.VISIBLE ? View.GONE : View.VISIBLE); } } } </code></pre>
    singulars
    1. This table or related slice is empty.
    1. PODynamically add a xml defined layout at run-time outside of onCreate()
      singulars
      1. PTQuestion
    1. PTAnswer
    1. This table or related slice is empty.
    1. USOderik
    plurals
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. PODynamically add a xml defined layout at run-time outside of onCreate()
      singulars
      1. PTQuestion
    1. This table or related slice is empty.
    1. VO
      singulars
      1. PO
      1. This table or related slice is empty.
      1. VTAcceptedByOriginator
    2. VO
      singulars
      1. PO
      1. This table or related slice is empty.
      1. VTUpMod
    1. COOne of the stipulations I defined is that it has to be outside of the onCreate(); Functionally that works but onCreate of Activity, i want to perform lazy instantiation. In your example whitebox has been loaded whether it will be used or not.
      singulars
      1. PO
      1. USMark Lapasa
    2. COThen you can use a `ViewStub`: http://developer.android.com/reference/android/view/ViewStub.html
      singulars
      1. PO
      1. USOderik
    3. COYou shouldn't have any problems changing your view hirarchy at runtime (though you must ensure to do your modifications on the UI thread). I think your example doesn't work because you are deriving from `ViewGroup` which ist just a stub that doesn't really layout it's child views. If you really want to go with a custom `ViewGroup` just to change the background color, derive from one that actually handles the layouting.
      singulars
      1. PO
      1. USOderik
 

Querying!

 
Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload