1、图片设置背景选择器，以便点按或设置选中与否，背景切换
res/drawable/selector_settings_item_back.xml
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<?xml version="1.0" encoding="utf-8"?> <selector xmlns:android="http://schemas.android.com/apk/res/android"> <item android:state_focused="true" android:drawable="@color/settingsSelectedItem"/> <item android:state_pressed="true" android:drawable="@color/settingsSelectedItem"/> <item android:state_selected="true" android:drawable="@color/settingsSelectedItem"/> <item android:state_focused="false" android:drawable="@color/settingsItem"/> </selector > |
颜色值定义：
res/values/colors.xml
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<?xml version="1.0" encoding="utf-8"?> <resources> <color name="settingsItem">#ffffff</color> <color name="settingsSelectedItem">#FFA500</color> </resources> |
2、圆角按钮，按下抬起切换背景，同时切换文字颜色
res/layout/activity_xxx.xml
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<Button android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_weight="1"android:background="@drawable/selector_shape_corner_button" android:text="审批中" android:textColor="@drawable/selector_font_style_corner_button" android:textSize="13sp" /> |
其中引用了 res/drawable/ 下的两个 selector ，
一个是背景图片随点按抬起状态进行切换，一个是文本颜色随点按抬起进行切换。
res/drawable/selector_shape_corner_button.xml
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<?xml version="1.0" encoding="utf-8"?> <selector xmlns:android="http://schemas.android.com/apk/res/android"> <item android:state_focused="true" android:drawable="@drawable/shape_corner_button_fill"/> <item android:state_pressed="true" android:drawable="@drawable/shape_corner_button_fill"/> <item android:state_selected="true" android:drawable="@drawable/shape_corner_button_fill"/> <item android:state_focused="false" android:drawable="@drawable/shape_corner_button"/> </selector > res/drawable/selector_font_style_corner_button |
shape_corner_button.xml
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<?xml version="1.0" encoding="utf-8"?> <shape xmlns:android="http://schemas.android.com/apk/res/android" android:shape="rectangle"> <corners android:radius="5dp" /> <solid android:color="#001da1f2" /> <stroke android:width="1dp" android:color="#1da1f2" /> </shape> |
shape_corner_button_fill.xml
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<?xml version="1.0" encoding="utf-8"?> <shape xmlns:android="http://schemas.android.com/apk/res/android" android:shape="rectangle"> <corners android:radius="5dp" /> <solid android:color="#ff1da1f2" /> <stroke android:width="1dp" android:color="#1da1f2" /> </shape> <?xml version="1.0" encoding="utf-8"?> <selector xmlns:android="http://schemas.android.com/apk/res/android"> <item android:state_focused="true" android:color="#ffffff"/> <item android:state_pressed="true" android:color="#ffffff"/> <item android:state_selected="true" android:color="#ffffff"/> <item android:state_focused="false" android:color="#1da1f2"/> </selector > |
总结
以上所述是小编给大家介绍的Android 中图片和按钮按下状态变化实例代码解析，希望对大家有所帮助，如果大家有任何疑问请给我留言，小编会及时回复大家的。在此也非常感谢大家对服务器之家网站的支持！
原文链接：https://blog.csdn.net/opengl_es/article/details/80558381
