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13747201
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2012-12-06T15:43:06.517
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2012-12-06T15:43:06.517
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text
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A <code>ListView</code> is just a presentation of data. The data is given to the <code>ListView</code> by an <code>Adapter</code>. This being said, I can explain what you did wrong: Inside your <code>OnClickListener</code>, you are (un)checking a <code>View</code> of the <code>ListView</code> itself. This means the data is not being changed and the <code>ListView</code> which represents this data, does not display the wanted behavior. A simple solution would be adding a boolean to your <code>Model</code>-object which indicates the checked-state: <pre><code>Model { boolean isChecked = false; public void setChecked(boolean checked){ isChecked = checked; } public boolean isChecked(){ return isChecked; } } </code></pre> Whenever you click the 'selectall'-button, you will simple toggle this boolean and notify the <code>Adapter</code> that his data has changed with the method <code>notifyDataSetChanged</code>. This will on his turn update the <code>ListView</code> itself. In pseudocode: <pre><code> onClick(..) { foreach (model inside my adapter){ model.setChecked(true); } listview.getAdapter().notifyDataSetChanged() } </code></pre> Last but not least, in the <code>getView()</code>-method inside your <code>Adapter</code> you can see if a <code>Model</code> is checked or not and act accordingly. <pre><code>getView(...){ if (listOfModel.get(position).isChecked){ // do stuff, probably check a CheckBox } else { // uncheck... } </code></pre> Good luck!
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1. POSelecting all checkboxes of listview in android
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1. USDroidBender
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1. POSelecting all checkboxes of listview in android
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1. CO+1 for excellent explanation of MVC
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 USbaske

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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.