悬浮窗和自启动权限总结

public class FloatWindowManager {

private static final FloatWindowManager instance = new FloatWindowManager();

public static FloatWindowManager getInstance() {
    return instance;
}

//检测手机悬浮窗权限
public boolean checkPermission(Context context) {
    Rom rom = new Rom();
    if (Rom.isHuaWei()) {
        rom = new HuaWei();
    }
    else if (Rom.isXiaoMi()) {
        rom = new XiaoMi();
    }
    else if (Rom.is360()) {
        rom = new Qiku();
    }
    else if (Rom.isMeiZu()) {
        rom = new Meizu();
    }
    else if (Rom.isOppo()) {
        rom = new Oppo();
    }
    else if (Rom.isVivo()) {
        rom = new Vivo();
    }
    return rom.checkFloatingWindowPermission(context);

}

//申请权限
public void applyPermission(Context context) {
    Rom rom = new Rom();
    if (Rom.isHuaWei()) {
        rom = new HuaWei();
    }
    else if (Rom.isXiaoMi()) {
        rom = new XiaoMi();
    }
    else if (Rom.is360()) {
        rom = new Qiku();
    }
    else if (Rom.isMeiZu()) {
        rom = new Meizu();
    }
    else if (Rom.isOppo()) {
        rom = new Oppo();
    }
    else if (Rom.isVivo()) {
        rom = new Vivo();
    }
    rom.applyFloatingWindowPermission(context);

}

}

公共的手机权限类Rom中的方法

    //检测4.4以后的悬浮窗的权限(适用于大部分机型)
    public boolean checkFloatingWindowPermission(Context context) {
        if (context == null) {
            return false;
        }
        int sdkInt = Build.VERSION.SDK_INT;
        if (sdkInt >= Build.VERSION_CODES.M) {//6.0以后的检测方法
            return Settings.canDrawOverlays(context);
        }
        else if (sdkInt >= Build.VERSION_CODES.KITKAT) {//4.4以后检测方法
            //checkOp该方法已经被@Hide,这里采用反射获取
            AppOpsManager ops = (AppOpsManager) context.getSystemService(Context.APP_OPS_SERVICE);
            Class<AppOpsManager> c = AppOpsManager.class;
            try {
                Method method = c.getDeclaredMethod("checkOp",
                        int.class, int.class, String.class);
                int op = 24;
                int uid = Binder.getCallingUid();
                String packageName = context.getPackageName();
                int mode = (int) method.invoke(ops, op, uid, packageName);
                return mode == AppOpsManager.MODE_ALLOWED;
            } catch (Exception e) {
                Log.e(TAG, "打印异常的信息：----\n" + Log.getStackTraceString(e));
                return false;
            }
        }
        else {//4.4以前的手机没什么限制
            return true;
        }

    }

    //申请悬浮窗的权限
    public void applyFloatingWindowPermission(Context context) {
        if (context == null) {
            return;
        }
        int sdkInt = Build.VERSION.SDK_INT;
        if (sdkInt >= Build.VERSION_CODES.M) {//6.0
            applyFloatingWindowPermission_6_0(context);
        }
        else if (sdkInt >= Build.VERSION_CODES.KITKAT) {//4.4
            applyFloatingWindowPermission_4_4(context);
        }
        //4.4以前的手机无需处理了

    }

    //专门处理6.0以上的权限的申请
    @TargetApi(Build.VERSION_CODES.M)
    protected void applyFloatingWindowPermission_6_0(Context context) {
        if (context == null) {
            return;
        }
        Intent intent = new Intent(Settings.ACTION_MANAGE_OVERLAY_PERMISSION);
        intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
        intent.setData(Uri.parse("package:" + context.getPackageName()));
        context.startActivity(intent);
    }

    //专门处理4.4~6.0的权限的申请 ,一般手机都要单独适配的
    protected void applyFloatingWindowPermission_4_4(Context context) {
        try {
            Intent intent = new Intent(
                    "android.settings.action.MANAGE_OVERLAY_PERMISSION",
                    Uri.parse("package:" + context.getPackageName())
            );
            intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
            context.startActivity(intent);

        } catch (Exception e) {
            Log.e(TAG, "4.4权限跳转失败！");
        }


    }