set the background color to transparent android

set the background color to transparent android

method one:

Only to add in the configuration file activity within the property configuration

android:theme="@android:style/Theme.Translucent" 

Enough.

This is called transparent style of android.

Method Two:

First built in the under res / values colors.xml file, write:
　　
　　<?

xmlversion="1.0"encoding="UTF-8"?

>
　　
　　<Resources>
　　
　　<colorName = "transparent"> # 9000 </ Color>
　　
　　</ Resources>
　　
　　this value is set to transparency of the entire interface. In order to see results. Now set the Opacity to 56% (9/16) around.
　　
　　Build style styles.xml, set up a program under RES / values /
　　
　　<?

xmlversion="1.0"encoding="utf-8"?

>
　　
　　<Resources>
　　
　　<styleName = "Transparent">
　　
　　<itemName = "Android: windowBackground"> @ Color / transparent </ Item>
　　
　　<itemName = "Android: windowIsTranslucent"> to true </ Item>
　　
　　<itemName = "Android: windowAnimationStyle" > Android @ +: style / Animation.Translucent </ Item>
　　
　　</ style>
　　
　　</ Resources>
　　
　　final step, this styles.xml used in the corresponding Activity. That in AndroidManifest.xml random <activity> tag add
　　
　　android: theme = "@ style / transparent"
　　
　　Suppose you want to set all activity uses this style, the sentence can label the statement added <application> in.
　　
　　The last execution. Haha. Is not find the whole interface are covered with a layer of translucent. Finally able to put into the background color # 9000 # 0000, after the execution of the program, it is fully transparent, and all things in the background can see but had no effect.