Two properties on the Android layout dither and Tilemode

First, the Chinese meaning of the two words is dither (jitter) and Tilemode (tiled)

1, first introduce tilemode (tile)

Its effect is similar to having a background thumbnail that is not stretched but multiple repetitions (similar to the effect of setting a small picture on the desktop of a computer)

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2. <XML version= "1.0" encoding="Utf-8"?>
4. <LinearLayout
6. android:id="@+id/mainlayout"
8. xmlns:android="Http://schemas.android.com/apk/res/android"
10. Android:layout_width="Fill_parent"
12. android:layout_height="Fill_parent"
14. android:orientation="Vertical"
16. android:background="@drawable/backrepeat"
18. >

Backrepeat.xml

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1. <bitmap
2. xmlns:android="http://schemas.android.com/apk/res/android"
3. android:src="@drawable/repeatimg"
4. android:tilemode="Repeat"
5. android:dither="true" />

Code mode:

[Java]View Plaincopy

1. Bitmap Bitmap = Bitmapfactory.decoderesource (Getresources (), R.drawable.icon);
2. bitmapdrawable bd = new bitmapdrawable (bitmap);
3. Bd.settilemodexy (Tilemode.repeat, tilemode.repeat);
4. Bd.setdither (true);
5. View.setbackgrounddrawable (BD);

2, again to explain the next dither (jitter)

Dither (Image jitter processing, when each color value is represented below 8 bits, the corresponding image jitter processing can be achieved when the total number of colors can be displayed low (such as 256 colors) also maintain a good display effect: dither on Wikipedia

Two properties on the Android layout dither and Tilemode