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WindowManager.LayoutParams lp=getWindow().getAttributes(); |
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lp.alpha=0.3f; |
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getWindow().setAttributes(lp); |
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WindowManager.LayoutParams lp=getWindow().getAttributes(); |
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lp.dimAmount=0.5f; |
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getWindow().setAttributes(lp); |
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getWindow().addFlags(WindowManager.LayoutParams.FLAG_DIM_BEHIND); |
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getWindow().setFlags(WindowManager.LayoutParams.FLAG_BLUR_BEHIND, |
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WindowManager.LayoutParams.FLAG_BLUR_BEHIND); |
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<resources>
<style name="Transparent"> <item name="android:windowBackground"> @color/transparent_background </item> <item name="android:windowNoTitle">true</item> <item name="android:windowIsTranslucent">true</item> <item name="android:windowAnimationStyle"> @+android:style/Animation.Translucent </item> </style> </resources> |
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<?xml version="1.0" encoding="utf-8"?>
<resources> <color name="transparent_background">#50000000</color> </resources> //注意： //color.xml的#5000000前两位是透明的效果参数从00--99（透明--不怎么透明）， //后6位是颜色的设置 |
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<activity
android:name=".TransparentActivity" android:theme="@style/Transparent"> </activity> |
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public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState); setTheme(R.style.Transparent); setContentView(R.layout.transparent); } |
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原文地址：http://www.cnblogs.com/happyaday/p/4351091.html
