Android 跳转应用权限设置页面 适配小米系统 |
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跳转应用设置页面方便用户修改已拒绝的权限，是经常遇到的需求，但是MIUI 8 系统上测试发现有坑，写一篇文章记录一下。 通常的跳转应用设置页面方法 Intent intent = new Intent(Settings.ACTION_APPLICATION_DETAILS_SETTINGS); Uri uri = Uri.fromParts("package", activity.getPackageName(), null); intent.setData(uri); activity.startActivityForResult(intent, CODE_REQUEST);就是通过系统封装的隐式意图直接打开设置页面的详情而已，intent 中提供了包名告诉系统需要调取哪个应用的信息。别忘了通过 startActivityForResult 方式打开，毕竟从设置页面返回之后你还要重走一遍权限检查和后续方法是吧。 @Override protected void onActivityResult(int requestCode, int resultCode, Intent data) { super.onActivityResult(requestCode, resultCode, data); if (requestCode == CODE_REQUEST) { //TODO something; } }Settings 这个类中封装了很多有用的系统属性，看一下 Settings.ACTION_APPLICATION_DETAILS_SETTINGS 这一条的注释: /** * Activity Action: Show screen of details about a particular application. ** In some cases, a matching Activity may not exist, so ensure you * safeguard against this. * * Input: The Intent's data URI specifies the application package name * to be shown, with the "package" scheme. That is "package:com.my.app". * * Output: Nothing. */ @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION) public static final String ACTION_APPLICATION_DETAILS_SETTINGS = "android.settings.APPLICATION_DETAILS_SETTINGS"; MIUI 8 系统上遇到的问题 场景是这样的，我需要请求的是打开照相机权限，模拟检测到用户禁用该权限后提示去系统设置页面打开权限的情况。 在系统权限设置页授予权限后回调可以检测到权限已获取，但是小米 MIX 的测试机打开照相机后是黑屏，并提示我权限被禁用，需要在安全中心开启。 原来小米系统在安全中心另外做了一套权限管理页面，并且直接无视了 Android 本身的权限设置页面的操作结果。明目张胆的架空啊。但是用户是不管的，所以我们在 MIUI 系统上就只能提示用户去安全中心的权限管理页面进行修改了。 MIUI 上一些特殊适配的问题可以看这篇帖子: http://www.miui.com/thread-2442999-1-1.html 上代码： public static void settingPermissionActivity(Activity activity) { //判断是否为小米系统 if (TextUtils.equals(BrandUtils.getSystemInfo().getOs(), BrandUtils.SYS_MIUI)) { Intent miuiIntent = new Intent("miui.intent.action.APP_PERM_EDITOR"); miuiIntent.putExtra("extra_pkgname", activity.getPackageName()); //检测是否有能接受该Intent的Activity存在 List resolveInfos = activity.getPackageManager().queryIntentActivities(miuiIntent, PackageManager.MATCH_DEFAULT_ONLY); if (resolveInfos.size() > 0) { activity.startActivityForResult(miuiIntent, CODE_REQUEST_CAMERA_PERMISSIONS); return; } } //如果不是小米系统 则打开Android系统的应用设置页 Intent intent = new Intent(Settings.ACTION_APPLICATION_DETAILS_SETTINGS); Uri uri = Uri.fromParts("package", activity.getPackageName(), null); intent.setData(uri); activity.startActivityForResult(intent, CODE_REQUEST_CAMERA_PERMISSIONS); }判断系统的代码如下: /** * Created by Yomii on 2017/4/12. */ public class BrandUtils { public static final String SYS_EMUI = "sys_emui"; public static final String SYS_MIUI = "sys_miui"; public static final String SYS_FLYME = "sys_flyme"; private static final String KEY_MIUI_VERSION_CODE = "ro.miui.ui.version.code"; private static final String KEY_MIUI_VERSION_NAME = "ro.miui.ui.version.name"; private static final String KEY_MIUI_INTERNAL_STORAGE = "ro.miui.internal.storage"; private static final String KEY_EMUI_API_LEVEL = "ro.build.hw_emui_api_level"; private static final String KEY_EMUI_VERSION = "ro.build.version.emui"; private static final String KEY_EMUI_CONFIG_HW_SYS_VERSION = "ro.confg.hw_systemversion"; private static SystemInfo systemInfoInstance; public static SystemInfo getSystemInfo() { if (systemInfoInstance == null) { synchronized (BrandUtils.class) { if (systemInfoInstance == null) { systemInfoInstance = new SystemInfo(); getSystem(systemInfoInstance); } } } return systemInfoInstance; } private static void getSystem(SystemInfo info) { try { Properties prop = new Properties(); prop.load(new FileInputStream(new File(Environment.getRootDirectory(), "build.prop"))); if (prop.getProperty(KEY_MIUI_VERSION_CODE, null) != null || prop.getProperty(KEY_MIUI_VERSION_NAME, null) != null || prop.getProperty(KEY_MIUI_INTERNAL_STORAGE, null) != null) { info.os = SYS_MIUI;//小米 info.versionCode = Integer.valueOf(prop.getProperty(KEY_MIUI_VERSION_CODE, "0")); info.versionName = prop.getProperty(KEY_MIUI_VERSION_NAME, "V0"); } else if (prop.getProperty(KEY_EMUI_API_LEVEL, null) != null || prop.getProperty(KEY_EMUI_VERSION, null) != null || prop.getProperty(KEY_EMUI_CONFIG_HW_SYS_VERSION, null) != null) { info.os = SYS_EMUI;//华为 info.versionCode = Integer.valueOf(prop.getProperty(KEY_EMUI_API_LEVEL, "0")); info.versionName = prop.getProperty(KEY_EMUI_VERSION, "unknown"); } else if (getMeizuFlymeOSFlag().toLowerCase().contains("flyme")) { info.os = SYS_FLYME;//魅族 info.versionCode = 0; info.versionName = "unknown"; } } catch (IOException e) { e.printStackTrace(); } } private static String getMeizuFlymeOSFlag() { return getSystemProperty("ro.build.display.id", ""); } private static String getSystemProperty(String key, String defaultValue) { try { Class clz = Class.forName("android.os.SystemProperties"); Method get = clz.getMethod("get", String.class, String.class); return (String) get.invoke(clz, key, defaultValue); } catch (Exception e) { } return defaultValue; } public static class SystemInfo { private String os = "android"; private String versionName = Build.VERSION.RELEASE; private int versionCode = Build.VERSION.SDK_INT; public String getOs() { return os; } public String getVersionName() { return versionName; } public int getVersionCode() { return versionCode; } @Override public String toString() { return "SystemInfo{" + "os='" + os + '\'' + ", versionName='" + versionName + '\'' + ", versionCode=" + versionCode + '}'; } } } |
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