Android Lab Test : The views, the Gallery (english)
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Android Lab Test : The views, the Gallery (english)
1. Develop on Android
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Lesson : The UI, the gallery (Gallery)
2. The UI, the gallery (Gallery)
• In this lesson, you will learn to create a gallery (Gallery)
of strings.
• For this, you will use the object Gallery and
ArrayAdapter.
3. The UI, the gallery (Gallery)
• Add a Gallery to the layout.
Gallery gallery = (Gallery)findViewById (R.id.gallery);
• To add strings to the Gallery, create an ArrayAdapter :
ArrayAdapter<String> adapter = new ArrayAdapter<String>(
Main.this, // content
android.R.layout.simple_spinner_item, // layout provided by Android
new String[]{"One", "Two", "Three", ...} // items to add
);
4. The UI, the gallery (Gallery)
• To change the background color of the Gallery, use the method
setBackgroundColor().
gallery.setBackgroundColor(0xFF0000FF);
• To associate the ArrayAdapter to the Gallery, use the method setAdapter().
gallery.setAdapter(adapter);
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