zxing是github上一個二維碼處理開源項目,咱們使用這個庫來處理二維碼html
若是你使用的是Android Studio,能夠參考本文進行配置。並附一個小例子。java
首先在build.gradle(Moudle:app)中添加下列依賴:android
repositories { git
mavenCentral() github
maven { app
url "http://dl.bintray.com/journeyapps/maven" maven
} ide
} 函數
dependencies { gradle
// Supports Android 4.0.3 and later (API level 15)
compile 'com.journeyapps:zxing-android-embedded:2.0.1@aar'
// Supports Android 2.1 and later (API level 7), but not optimal for later Android versions.
// If you only plan on supporting Android 4.0.3 and up, you don't need to include this.
compile 'com.journeyapps:zxing-android-legacy:2.0.1@aar'
// Convenience library to launch the scanning and encoding Activities.
// It automatically picks the best scanning library from the above two, depending on the
// Android version and what is available.
compile 'com.journeyapps:zxing-android-integration:2.0.1@aar'
// Version 3.0.x of zxing core contains some code that is not compatible on Android 2.2 and earlier.
// This mostly affects encoding, but you should test if you plan to support these versions.
// Older versions e.g. 2.2 may also work if you need support for older Android versions.
compile 'com.google.zxing:core:3.0.1'
}
而後在AndroidManifest.xml文件<manifest>標籤內部,<application>標籤前面加入如下代碼,申請權限
這樣就好了!
接下來是用法:
在按鈕的onClick事件中添加代碼,點擊後會跳轉到掃描界面:
而後重寫下列函數,用來處理解碼後的信息:
變量result就是二維碼解碼後的信息。
請用真機調試。
另外,zxing中設置的是掃描時橫屏。一般咱們不但願橫屏,網上通常的修改方法是直接修改源代碼。可是如今咱們用的是gradle添加依賴的方式,因此我如今暫時沒有想到辦法。若是有知道的盆友望不吝賜教!
原文: http://blog.csdn.net/AeroYoung/article/details/51144758