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总结

1.在src/main/java/com/example/code7/NewsAdapter.java中 ImageView ivImage的setImageResource要更换成setImageBitmap

原因是News中新添加bitmap属性传递image source

2.src/main/java/com/example/code7/MainActivity.java中setContentView布局为activity_main而非activity_login

3.src/main/res/layout/activity_main.xml中设置ListView控件属性如下即可实现新闻间隔:

        android:divider="@android:color/transparent"
        android:dividerHeight="8dp"

4.Button 圆角设置: src/main/res/drawable/shape.xml内设置属性android:radius 然后在Button，设置background属性即可 android:background=" @drawable/上面那个shape的文件名字"

参考

https://xxgqin.gitbook.io/android/ch04/ch04-2

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