【Android】【后台运行-1】请求电池优化

先上代码

AndroidManifest.xml中申请权限

<uses-permission android:name="android.permission.REQUEST_IGNORE_BATTERY_OPTIMIZATIONS"/>

Activity中实现：

override fun onCreate(savedInstanceState: Bundle?) {
	......
    if (!isIgnoringBatteryOptimizations()) {
        requestIgnoreBatteryOptimizations();
    }
}

private fun isIgnoringBatteryOptimizations(): Boolean {
    var isIgnoring = false
    val powerManager = getSystemService(POWER_SERVICE) as PowerManager
    isIgnoring = powerManager.isIgnoringBatteryOptimizations(packageName)
    return isIgnoring
}

private fun requestIgnoreBatteryOptimizations() {
    try {
    	//此Intent是在当前应用界面弹出提示框，供用户选择；Samsung S7和Xiaomi note3可用，且无设置路径
        val intent = Intent(Settings.ACTION_REQUEST_IGNORE_BATTERY_OPTIMIZATIONS)
        //上一个Intent对Huawei Mate10pro不支持，提示没有响应此Intent的Activity,故换成下面的Intent，跳转到设置界面
        //val intent = Intent(Settings.ACTION_IGNORE_BATTERY_OPTIMIZATION_SETTINGS)
		//Approach 1:
		//startActivity(intent)
		//Approach 2: 因为startActivityForResult在ComponentActivity中被废弃了，故需要用替代方案来获取result
        //startActivityForResult(intent, 200)
        resultLauncher.launch(intent)
    } catch (e: Exception) {
        e.printStackTrace()
    }
}

private var resultLauncher = registerForActivityResult(ActivityResultContracts.StartActivityForResult()) { result ->
    if (result.resultCode == Activity.RESULT_OK) {
        val data: Intent? = result.data
        // Do something
    }
}

真机效果

• Samsung Galaxy S7 - Android 7.0

ACTION_REQUEST_IGNORE_BATTERY_OPTIMIZATIONS	ACTION_IGNORE_BATTERY_OPTIMIZATION_SETTINGS
没有在设置中找到打开/关闭的路径	此界面应该是被隐藏了，用户无法自主找到

• Xiaomi note3 - Android 8.0.1

ACTION_REQUEST_IGNORE_BATTERY_OPTIMIZATIONS	ACTION_IGNORE_BATTERY_OPTIMIZATION_SETTINGS
没有在设置中找到打开/关闭的路径	此界面应该是被隐藏了，用户无法自主找到

• Huawei mate10 pro - Android 8.0

ACTION_REQUEST_IGNORE_BATTERY_OPTIMIZATIONS	ACTION_IGNORE_BATTERY_OPTIMIZATION_SETTINGS
不支持

• Vivo X60 - Android11

ACTION_REQUEST_IGNORE_BATTERY_OPTIMIZATIONS	ACTION_IGNORE_BATTERY_OPTIMIZATION_SETTINGS
不支持
提示:android.content.ActivityNotFoundException: No Activity found to handle Intent { act=android.settings.REQUEST_IGNORE_BATTERY_OPTIMIZATIONS }	跳转界面显示异常，手机厂商未开放（咕咚运动APP的此项设置是假的，实际并未设置成功）

• Xiaomi MI10 - Android11

ACTION_REQUEST_IGNORE_BATTERY_OPTIMIZATIONS	ACTION_IGNORE_BATTERY_OPTIMIZATION_SETTINGS
不支持
registerForActivityResult().result.resultCode 0,且不进行界面跳转	跳转界面显示异常，跳转路径不对，但是选择“无限制”后，电池优化会变成“不优化”，怀疑小米对两者进行了关联绑定

下图是手动到设置app中设置的路径：

参考连接：
OnActivityResult method is deprecated, what is the alternative?