安卓 悬浮窗权限适配
https://www.jb51.net/article/120124.htm
//检测悬浮窗权限
public static boolean checkFloatPermission(Context context) {
if (Build.VERSION.SDK_INT < Build.VERSION_CODES.KITKAT)
return true;
if (Build.VERSION.SDK_INT < Build.VERSION_CODES.M) {
try {
Class cls = Class.forName("android.content.Context");
Field declaredField = cls.getDeclaredField("APP_OPS_SERVICE");
declaredField.setAccessible(true);
Object obj = declaredField.get(cls);
if (!(obj instanceof String)) {
return false;
}
String str2 = (String) obj;
obj = cls.getMethod("getSystemService", String.class).invoke(context, str2);
cls = Class.forName("android.app.AppOpsManager");
Field declaredField2 = cls.getDeclaredField("MODE_ALLOWED");
declaredField2.setAccessible(true);
Method checkOp = cls.getMethod("checkOp", Integer.TYPE, Integer.TYPE, String.class);
int result = (Integer) checkOp.invoke(obj, 24, Binder.getCallingUid(), context.getPackageName());
return result == declaredField2.getInt(cls);
} catch (Exception e) {
return false;
}
} else {
return Settings.canDrawOverlays(context);
}
}
//跳转到设置开启权限
Intent intent = new Intent(Settings.ACTION_MANAGE_OVERLAY_PERMISSION);
intent.setData(Uri.parse("package:" + activity.getPackageName()));
activity.startActivityForResult(intent, REQUEST_DIALOG_PERMISSION);