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切换到android模式--编码模式 1 进入layout-选择Design模式2 先拉Layouts-vertical切换到Text模式--剪切xmlns:android="http://schemas.android.com/apk/res/android"删除之前样式 4 radioGroup 阅读全文
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activity_chat.xml <?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width 阅读全文
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activity_marquee.xml <?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_wid 阅读全文
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activity_main.xml <?xml version="1.0" encoding="utf-8"?><android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res 阅读全文
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activity_main.xml <?xml version="1.0" encoding="utf-8"?><android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res 阅读全文