Android关联源码support-v4，v7，v13

右键libs里边的android-support-v4 选Build Path Add进去

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会多出一个Referenced Libraries

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右键 里边的android-support-v4 点击Properties

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点击Extemal Folder...找到 sdk/extras/android/support/v4/src 点击确定

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右键android-support-v4 选择 Build Path 选最下边呢个

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将导入的jar包放到最上面就OK了

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