求助，怎么设置单独一个APP的音量大小，就是把手机上的媒体音

可以做啊，我就用了这个，打开高德地图，最大音量。配置文件，新建，应用程序，选择高德地图，执行任务，音频，媒体音量，60

音量最大化的任务，判断当前有没有播放音乐，如果没有播放，将媒体音量设为最大

第一步，代码，Java Function，照着写吧，别写错了

第二步，代码，Java Function，照着写。第一步是获取系统的音频管理器，第二步是判断当前是否正在播放音乐。

三星手机有官方的软件可以调节，play上有下载

配置文件，添加，应用程序，选择应用。
任务，添加，位置，Location Mode，选High Accuracy

Location Mode提示没有权限，tasker的在线帮助里有提到解决方案

Write Secure Settings Permission
To use this, Tasker needs to be granted permission to change secure settings on your device
Enable Developer Mode: Go to Android Settings -> About Phone and look for the Build Number option. Touch it multiple times until developer mode is enabled.
Enable USB Debugging: Go to Android Settings -> and look for the Developer Options option. In there, enable the USB debugging option.
Install ADB on your PC: Check here for a quick way to do it.
Connect device to PC: Connect your device to a PC and look on your phone. A prompt should show up asking you to allow your phone to be debugged by your PC. Accept this.
Grant permission: Open a command line on your PC and write
adb shell pm grant net.dinglisch.android.taskerm android.permission.WRITE_SECURE_SETTINGS
If you're on a mac write
./adb shell pm grant net.dinglisch.android.taskerm android.permission.WRITE_SECURE_SETTINGS
Notes:
On MIUI devices you may have to open developer options and enable the USB debugging (Security Settings) setting to be able to run the above command.