装android sdk的时候把以前的sdk目录删除了，造成以下错误
需要点击
然后就会自动去下好了。
另外在运行 react-native run-android的时候弹出Unable to load script from assets index.android.bundle的错误，搜了下SO找到了解决方法
1.(in project directory) mkdir android/app/src/main/assets
2.react-native bundle --platform android --dev false --entry-file index.js --bundle-output android/app/src/main/assets/index.android.bundle --assets-dest android/app/src/main/res
3.react-native run-android
https://stackoverflow.com/questions/44446523/unable-to-load-script-from-assets-index-android-bundle-on-windows
Could not find property 'MYAPP_RELEASE_STORE_PASSWORD' on SigningConfig_Decorated
MYAPP_RELEASE_STORE_FILE=KEYSTORE_NAME.keystore
MYAPP_RELEASE_KEY_ALIAS=YOUR_ALIAS
MYAPP_RELEASE_STORE_PASSWORD=123456
MYAPP_RELEASE_KEY_PASSWORD=123456
Cannot read property 'State' of undefined
查了下是GestureHandler.js 调用的RNGestureHandlerModule.State这行报错误，google的结果是把react-native-gesture-handler移除再安装
npm install --save react-native-gesture-handler
react-native link react-native-gesture-handler
https://stackoverflow.com/questions/53391855/undefined-is-not-an-object-after-updating-react-navigation-to-v3
在启动两个模拟器的时候，直接调用react-native run-android --deviceId=emualte-xxx，会报错，找不到mainActivity,把另外一个关掉可以了
对着https://reactnative.cn/docs/0.43/signed-apk-android.html 导出android的时候报这个错error duplicate resources，参考
https://stackoverflow.com/questions/52632950/react-native-0-57-1-android-duplicate-resources解决
连手机报这个错误
https://stackoverflow.com/questions/44446523/unable-to-load-script-from-assets-index-android-bundle-on-windows
如下解决
(in project directory) mkdir android/app/src/main/assets
react-native bundle --platform android --dev false --entry-file index.js --bundle-output android/app/src/main/assets/index.android.bundle --assets-dest android/app/src/main/res
react-native run-android
使用react-native-video后，build.gradle中 minSdkVersion = 26
然后cd android,gradlew clean
react-native-vector-icons 在安卓上不显示
Edit android/app/build.gradle ( NOT android/build.gradle ) and add the following:
apply from:"../../node_modules/react-native-vector-icons/fonts.gradle"
couldn't find DSO to load: libreactnativejni.so
在用这个的时候发生了以下错误，couldn't find DSO to load: libreactnativejni.so，照帖子的方式在app/build.gradle中添加
https://stackoverflow.com/questions/43368926/android-reactnative-java-lang-unsatisfiedlinkerrorcould-find-dso-to-load-libre
未解决
在android机usb连接的时候
Could not run adb reverse: Command failed: C:\Users\Administrator\AppData\Local\Android\Sdk/platform-tools/adb -s cba0167a reverse tcp:8081 tcp:8081
这个用了很久的时间搜索也没解决
开了个模拟器可以，现在模拟器上测试
今天搜到了adb reverse得安卓5.0以上，或者手机和电脑在一个wifi下用wifi
https://stackoverflow.com/questions/31525431/getting-error-closed-twice-on-adb-reverse/41013327#41013327
ScrollableTabView
点击标题无法点击，内容也不显示的时候，检查下它的parent的flex有没有被设置成1
查看崩溃信息
adb logcat AndroidRuntime:E *:S
清除
gradlew clean
导出apk
https://facebook.github.io/react-native/docs/signed-apk-android.html
$ cd android
$ ./gradlew assembleRelease
adb install $file;
注意下如果出来的是unsigned,那么看下有没有遗漏修改 buildTypes {
release {
...
signingConfig signingConfigs.release
}
}
C:\Python27\python.exe systrace.py --time=10 -o trace.html sched gfx view -a com.doubanmovie
