Windows do react native official examples of problems encountered

The version is specified in the 1.android/app/build.gradle file:

Compilesdkversion 23
Buildtoolsversion "23.0.1"

You need to select it in Settings, as shown in:

2. The "Could not find Tools.jar" error was reported because the Java environment variable Java_home was not configured.

3. Under the project directory run React-native run-android, the interface that appears on the phone (using the ADB devices command to confirm that the phone is connected):

4. Above interface, "Dev Settings" after configuring xx.xx.xx.xx:8081, eject:

5. Modify the Index.android.js in the project folder, refresh on the phone, you can see the results of the changes:

Windows do react native official examples of problems encountered