Android studio新建文件出现setContentView(R.layout.activity_main);中的R标红错误解决方法
今天打开Android studio突然出现了setContentView(R.layout.activity_main);中的R标红错误，这已经不是第一次出现这个错误了，真心的觉得Android studio是真的不稳定，找了半天发现我的资源文件res下面的好多文件出现了乱码，（我也是醉了）。把他们一个一个的替换成正确的代码终于rebulid project不再出现错误了。
<?xml version="1.0" encoding="utf-8"?> <adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android"> <background android:drawable="@drawable/ic_launcher_background" /> <foreground android:drawable="@drawable/ic_launcher_foreground" /> </adaptive-icon>
这是mipmap下的ic_lanucher和ic_lanucher_round通用的代码。
<?xml version="1.0" encoding="utf-8"?> <vector xmlns:android="http://schemas.android.com/apk/res/android" android:width="108dp" android:height="108dp" android:viewportWidth="108" android:viewportHeight="108"> <path android:fillColor="#008577" android:pathData="M0,0h108v108h-108z" /> <path android:fillColor="#00000000" android:pathData="M9,0L9,108" android:strokeWidth="0.8" android:strokeColor="#33FFFFFF" /> <path android:fillColor="#00000000" android:pathData="M19,0L19,108" android:strokeWidth="0.8" android:strokeColor="#33FFFFFF" /> <path android:fillColor="#00000000" android:pathData="M29,0L29,108" android:strokeWidth="0.8" android:strokeColor="#33FFFFFF" /> <path android:fillColor="#00000000" android:pathData="M39,0L39,108" android:strokeWidth="0.8" android:strokeColor="#33FFFFFF" /> <path android:fillColor="#00000000" android:pathData="M49,0L49,108" android:strokeWidth="0.8" android:strokeColor="#33FFFFFF" /> <path android:fillColor="#00000000" android:pathData="M59,0L59,108" android:strokeWidth="0.8" android:strokeColor="#33FFFFFF" /> <path android:fillColor="#00000000" android:pathData="M69,0L69,108" android:strokeWidth="0.8" android:strokeColor="#33FFFFFF" /> <path android:fillColor="#00000000" android:pathData="M79,0L79,108" android:strokeWidth="0.8" android:strokeColor="#33FFFFFF" /> <path android:fillColor="#00000000" android:pathData="M89,0L89,108" android:strokeWidth="0.8" android:strokeColor="#33FFFFFF" /> <path android:fillColor="#00000000" android:pathData="M99,0L99,108" android:strokeWidth="0.8" android:strokeColor="#33FFFFFF" /> <path android:fillColor="#00000000" android:pathData="M0,9L108,9" android:strokeWidth="0.8" android:strokeColor="#33FFFFFF" /> <path android:fillColor="#00000000" android:pathData="M0,19L108,19" android:strokeWidth="0.8" android:strokeColor="#33FFFFFF" /> <path android:fillColor="#00000000" android:pathData="M0,29L108,29" android:strokeWidth="0.8" android:strokeColor="#33FFFFFF" /> <path android:fillColor="#00000000" android:pathData="M0,39L108,39" android:strokeWidth="0.8" android:strokeColor="#33FFFFFF" /> <path android:fillColor="#00000000" android:pathData="M0,49L108,49" android:strokeWidth="0.8" android:strokeColor="#33FFFFFF" /> <path android:fillColor="#00000000" android:pathData="M0,59L108,59" android:strokeWidth="0.8" android:strokeColor="#33FFFFFF" /> <path android:fillColor="#00000000" android:pathData="M0,69L108,69" android:strokeWidth="0.8" android:strokeColor="#33FFFFFF" /> <path android:fillColor="#00000000" android:pathData="M0,79L108,79" android:strokeWidth="0.8" android:strokeColor="#33FFFFFF" /> <path android:fillColor="#00000000" android:pathData="M0,89L108,89" android:strokeWidth="0.8" android:strokeColor="#33FFFFFF" /> <path android:fillColor="#00000000" android:pathData="M0,99L108,99" android:strokeWidth="0.8" android:strokeColor="#33FFFFFF" /> <path android:fillColor="#00000000" android:pathData="M19,29L89,29" android:strokeWidth="0.8" android:strokeColor="#33FFFFFF" /> <path android:fillColor="#00000000" android:pathData="M19,39L89,39" android:strokeWidth="0.8" android:strokeColor="#33FFFFFF" /> <path android:fillColor="#00000000" android:pathData="M19,49L89,49" android:strokeWidth="0.8" android:strokeColor="#33FFFFFF" /> <path android:fillColor="#00000000" android:pathData="M19,59L89,59" android:strokeWidth="0.8" android:strokeColor="#33FFFFFF" /> <path android:fillColor="#00000000" android:pathData="M19,69L89,69" android:strokeWidth="0.8" android:strokeColor="#33FFFFFF" /> <path android:fillColor="#00000000" android:pathData="M19,79L89,79" android:strokeWidth="0.8" android:strokeColor="#33FFFFFF" /> <path android:fillColor="#00000000" android:pathData="M29,19L29,89" android:strokeWidth="0.8" android:strokeColor="#33FFFFFF" /> <path android:fillColor="#00000000" android:pathData="M39,19L39,89" android:strokeWidth="0.8" android:strokeColor="#33FFFFFF" /> <path android:fillColor="#00000000" android:pathData="M49,19L49,89" android:strokeWidth="0.8" android:strokeColor="#33FFFFFF" /> <path android:fillColor="#00000000" android:pathData="M59,19L59,89" android:strokeWidth="0.8" android:strokeColor="#33FFFFFF" /> <path android:fillColor="#00000000" android:pathData="M69,19L69,89" android:strokeWidth="0.8" android:strokeColor="#33FFFFFF" /> <path android:fillColor="#00000000" android:pathData="M79,19L79,89" android:strokeWidth="0.8" android:strokeColor="#33FFFFFF" /> </vector>
这是drawable下的ic_lanucher_background.xml的代码
<vector xmlns:android="http://schemas.android.com/apk/res/android" xmlns:aapt="http://schemas.android.com/aapt" android:width="108dp" android:height="108dp" android:viewportWidth="108" android:viewportHeight="108"> <path android:fillType="evenOdd" android:pathData="M32,64C32,64 38.39,52.99 44.13,50.95C51.37,48.37 70.14,49.57 70.14,49.57L108.26,87.69L108,109.01L75.97,107.97L32,64Z" android:strokeWidth="1" android:strokeColor="#00000000"> <aapt:attr name="android:fillColor"> <gradient android:endX="78.5885" android:endY="90.9159" android:startX="48.7653" android:startY="61.0927" android:type="linear"> <item android:color="#44000000" android:offset="0.0" /> <item android:color="#00000000" android:offset="1.0" /> </gradient> </aapt:attr> </path> <path android:fillColor="#FFFFFF" android:fillType="nonZero" android:pathData="M66.94,46.02L66.94,46.02C72.44,50.07 76,56.61 76,64L32,64C32,56.61 35.56,50.11 40.98,46.06L36.18,41.19C35.45,40.45 35.45,39.3 36.18,38.56C36.91,37.81 38.05,37.81 38.78,38.56L44.25,44.05C47.18,42.57 50.48,41.71 54,41.71C57.48,41.71 60.78,42.57 63.68,44.05L69.11,38.56C69.84,37.81 70.98,37.81 71.71,38.56C72.44,39.3 72.44,40.45 71.71,41.19L66.94,46.02ZM62.94,56.92C64.08,56.92 65,56.01 65,54.88C65,53.76 64.08,52.85 62.94,52.85C61.8,52.85 60.88,53.76 60.88,54.88C60.88,56.01 61.8,56.92 62.94,56.92ZM45.06,56.92C46.2,56.92 47.13,56.01 47.13,54.88C47.13,53.76 46.2,52.85 45.06,52.85C43.92,52.85 43,53.76 43,54.88C43,56.01 43.92,56.92 45.06,56.92Z" android:strokeWidth="1" android:strokeColor="#00000000" /> </vector>
这是drawable下的ic_lanucher_foreground.xml的代码
<?xml version="1.0" encoding="utf-8"?> <resources> <color name="colorPrimary">#008577</color> <color name="colorPrimaryDark">#00574B</color> <color name="colorAccent">#D81B60</color> </resources>
这是layout下的colors.xml的代码
希望还有新建项目时代码出现乱码的伙伴可以用这样的方法解决。
